Superfine Sodium Bicarbonate: A Grounded Look at an Unsung Workhorse

Historical Development

The story of sodium bicarbonate goes back further than most people realize. Bakers in the early 19th century needed something reliable for leavening bread, so they turned to this powdery substance. Chemists figured out commercial production soon after, thanks to the likes of Nicolas Leblanc and Ernest Solvay. Demand mushroomed beyond the kitchen as industry recognized sodium bicarbonate’s value in making glass, cleaning metals, and neutralizing acids. Fast forward a hundred years, researchers sharpened production methods, leading to the superfine variant. Milling grew more precise, leading to smaller particle sizes without much dust. As the market branched out, so did expectations for purity, consistency, and safety. Every generation has found new ways to put this compound to work.

Product Overview

Superfine sodium bicarbonate is basically regular baking soda milled down to tiny particles. Most grains run below 45 microns, which helps it interact rapidly with whatever it touches. Industries keep it on hand because it dissolves quickly and packs neatly without clumping. Engineers and food manufacturers give it a nod for these reasons. Powdery as snow, it flows smoothly and blends evenly—qualities that make a clear difference on the production line or in a test beaker. The milled texture means fewer air pockets, less waste, and predictable outcomes. This is no ordinary pantry staple—years of fine-tuning place it squarely in the crosshairs of demanding applications.

Physical & Chemical Properties

Sodium bicarbonate comes as a white crystalline powder with a very mild alkaline taste. Its chemical formula, NaHCO3, hides a lot behind those letters. It starts to break down around 50°C and gives off carbon dioxide as the temperature rises, which anyone who’s baked a cake has witnessed up close. Density clocks in at about 2.2 g/cm3, and it’s soluble in water but remains stable in dry storage. Unlike harsh chemicals, this powder doesn’t attack metal or skin in normal use. Superfine grades deliver faster dissolution and less undissolved grit, a perk for beverages, pharmaceuticals, and fire extinguishers. Even cosmetic manufacturers appreciate its soft texture and gentle nature.

Technical Specifications & Labeling

Product quality isn’t left to chance. Reputable suppliers offer certificates detailing sodium bicarbonate content, minimum assay, loss on drying, pH in water, and chloride levels. Packaging usually sticks to food-safe, moisture-resistant bags. Labels must list country of origin, batch number, net weight, production date, and shelf life. In countries with tighter regulations, manufacturers add details about allergen status, heavy metals, and whether the powder comes from synthetic or mineral sources. Companies track each consignment, using transparent documents to back up their claims. Customers want to know exactly what’s in the bag and how fresh it remains from start to finish.

Preparation Method

Producers rely on two main routes. The Solvay process, named after Ernest Solvay, brings together sodium chloride (salt), ammonia, and carbon dioxide in a water bath. Chemical reactions pump out sodium bicarbonate plus ammonium chloride. The mixture passes through filtration, washing, and drying to yield a clean batch. Milling machines kick in next. Running the crystals through ball mills or pin mills grinds them to superfine size. Some plants use air classifiers to sift the powder further, removing rough chunks and ensuring all particles fall below the target size. At the end, strict checks screen out impurities and confirm the right flow properties. If the powder passes every test, it moves onto filling and packaging.

Chemical Reactions & Modifications

Sodium bicarbonate stays mostly stable in dry conditions, which gives it a long shelf life. In water or under heat, it releases carbon dioxide as bubbles—a trick leveraged in baking and cleaning. If you mix it with acids like vinegar or citric acid, the fizz signals a chemical reaction, useful for cleaning, deodorizing, or powering model volcanoes. Science labs sometimes modify superfine particles with anti-caking agents or blend them for customized pH control. The food industry might combine it with leavening acids for balanced dough-rising; water treatment firms use it to buffer solutions and correct acidity. While the basic chemistry stays consistent, the details shift according to the end user’s goals.

Synonyms & Product Names

Ask around and one might hear sodium bicarbonate called baking soda, bicarbonate of soda, or even sodium hydrogen carbonate in older texts. Branded goods in stores might tout it as “food grade” or “premium grade.” In chemical catalogs, be on the lookout for E500(ii), the code for food-grade sodium bicarbonate under EU labeling rules. Researchers use elegant terms like NaHCO3, though factory managers stick with soda or bicarb for brevity. No matter the title, the core product remains the same—just finer grains and stricter specifications in the superfine market.

Safety & Operational Standards

Industry holds sodium bicarbonate to a high safety bar. Workers shouldn’t breathe in too much dust, so masks and ventilation play a big part in the factory routine. The powder doesn’t burn or explode, but mixing it the wrong way with strong acids can send up splashes or even hazardous fumes. Standards like ISO 9001 and HACCP shape how the material is handled, stored, and shipped. Routine checks pinpoint any contamination. At home, superfine grades see plenty of use in toothpaste, antacid tablets, and cleaning products. All this comes with a safety net since sodium bicarbonate’s mildness keeps risk low compared to more aggressive chemicals. Accidental ingestion in food-grade form rarely causes issues, though excessive doses should be avoided.

Application Area

Superfine sodium bicarbonate sits in warehouses for more than just baking. Food companies rely on it for gentle leavening and color control in cookies. Beverage firms add it to sodium-rich mineral waters and effervescent tablets. The pharmaceutical sector crafts antacids, bath fizzers, and gentle exfoliating scrubs. Pool maintenance teams use it to fix water pH. The livestock industry sprinkles it in animal feed as a buffer, helping cows digest grain-heavy diets. Environmental firms harness it for air pollution scrubbers, where the fine particles react with acidic gases. Firefighters trust it for dry chemical extinguishers. Even science classrooms depend on it for safe experiments and hands-on demonstrations. Superfine grades deliver a consistent performance, so the powder earns its spot across these diverse worlds.

Research & Development

Researchers don’t just settle for old tricks. Universities and private labs test new ways to stretch sodium bicarbonate’s capabilities. They tweak particle size, dryness, and how the compound responds to pressure or moisture. Some studies explore using superfine grades as carriers for controlled drug delivery, promising treatments that release active ingredients gently in the body. Others look at new blends for fire extinguishers, aiming for quicker suppression of flames with fewer toxic byproducts. Environmental engineers seek out partnerships with sodium bicarbonate makers to soak up industrial emissions, especially sulfur dioxide from smokestacks. Fine-tuning continues, fueled by customer demand for safer, more sustainable options that don’t compromise on performance.

Toxicity Research

People often ask if superfine sodium bicarbonate is safe. Toxicity research points to low risks if used according to directions. The compound won’t build up in the body or water table in trace amounts, and its mild alkalinity avoids the burns linked with stronger bases like sodium hydroxide. Still, scientists track its interactions in sensitive settings, from food and drugs to animal feed. Inhaling too much can irritate airways, so facilities take steps to reduce airborne dust. In rare cases, overexposure can throw off blood chemistry—something hospitals watch for when using high doses as a quick-acting antacid. Regulators continue to monitor new uses and set limits based on careful toxicological review, so those who handle or consume it can count on up-to-date protections.

Future Prospects

Looking ahead, superfine sodium bicarbonate faces both opportunity and scrutiny. Food companies want ever-higher purity and traceability. Environmental policy shifts boost demand for non-toxic scrubbing agents, especially as coal plants and waste incinerators tighten emissions controls. Researchers see a future in specialized medical applications, from targeted drug carriers to wound care powders. Consumer products—everything from green cleaning to ultra-soft toothpaste—use the powder’s fine texture to capture niche markets. At the same time, critics push for more sustainable raw materials and energy-efficient processing. Factories weigh investments in cleaner production lines and smarter packaging to keep pace. By following safety science, listening to customers, and embracing innovation, superfine sodium bicarbonate will carve new paths across established and emerging industries.



What is Superfine Sodium Bicarbonate used for?

Everyday Ingredient, Uncommon Uses

Most folks keep baking soda in the cupboard for cookies or the fridge for smells. Take that same ingredient, grind it into powder so fine it feels like silk, and you get superfine sodium bicarbonate. It’s not for the pantry anymore. Superfine grade stretches far beyond the kitchen and it’s become a staple in manufacturing, animal nutrition, and even environmental solutions—fields I’ve seen up close as someone who’s run a small bakery, raised chickens, and worked in a wastewater lab.

Lifting More Than Baked Goods

For feed mills and livestock producers, superfine sodium bicarbonate makes a difference in animal health. My neighbor, who manages a dairy operation, swears by it. She adds the superfine stuff to the cows’ ration. The smaller particles dissolve quickly in the rumen, helping buffer acidity. Cows keep eating, milk stays steady—even during feed changes or heat stress. The bigger, grittier soda doesn’t work as fast. Scientific trials back this up: superfine soda keeps rumen pH in a healthier range, especially for high-producing cows. Healthier cows mean less vet calls and more milk, and that gets noticed on the farm’s bottom line.

Cleaner Air, Clearer Results

Industrial scrubbers use superfine sodium bicarbonate to trap pollutants before they reach the air. I toured a glass factory where these scrubbers pull sulfur dioxide out of the exhaust stream. The superfine powder gives a much larger surface area for reaction. It acts quickly, letting the plant meet strict regulations. If the powder was coarser, not as much harmful gas would get caught before going up the smokestack. Factories rely on consistent results—one missed day could mean big fines. Superfine soda helps keep air cleaner for folks downwind.

Helping Water and Processes Run Smoothly

Wastewater plants dose superfine sodium bicarbonate for pH control. In my old job running samples in a municipal lab, I saw how chunky soda clumped up on contact, leaving pockets of untreated water. The superfine stuff spreads out rapidly and brings pH where it needs to go, fast. It keeps heavy metal removal processes on target and protects sensitive organisms in biological treatment stages. That reliability can keep an entire plant operating safely.

Food Factories and Precision

Commercial bakers and snack makers lean on superfine sodium bicarbonate for texture and speed. In high-speed mixing, uniformity—getting every batch just right—depends on tiny particles mixing better than the grainy sort. In my own bakery days, cakes came out fluffier and more consistent, especially at volume. Even small changes in leavening can change cost or waste for the factory, and mistakes get expensive.

Safe, Simple, Proven

Safety matters. Superfine sodium bicarbonate holds the “generally recognized as safe” label from the FDA. It’s simple, cheap, and doesn’t bring along strange chemical risks. In days when every penny and every health standard counts, companies and farms alike want to use fewer chemicals and avoid residues or nasty surprises.

Challenges and the Road Ahead

One issue crops up: superfine grades can be dusty, leading to challenges in packaging and handling. Workers need good ventilation and masks during production or use. Manufacturers have started blending or coating the powder to fix this, but the benefit of superfine action keeps it popular. Continued investment in dust control and product innovation can safeguard workers and bring even wider use.

Superfine sodium bicarbonate isn’t new. Still, its impact spreads wider as industries look for safe ways to boost efficiency, hit tighter standards, and take better care of animals, people, and the planet.

Is Superfine Sodium Bicarbonate safe for food applications?

The Role of Superfine Sodium Bicarbonate in Food Processing

Baking soda, or sodium bicarbonate, shows up in plenty of kitchens. Most people have sprinkled it into recipes or used it to clean surfaces. Now, food manufacturers are focusing more on the “superfine” version, with smaller grains that blend easily and react quickly. Superfine sodium bicarbonate often promises smoother batters, fluffier cakes, and more even results.

Regulators like the U.S. Food and Drug Administration recognize sodium bicarbonate as “generally recognized as safe” (GRAS) for its intended uses. It sits on ingredient panels for baked goods, soft drinks, fried snacks, and even some meat products. Granule size rarely draws attention in government food safety guidance—the chemical nature and purity matter far more.

Food Purity and Manufacturing Controls

Looking back at the factories where I walked production lines, most quality teams care about two things: what goes in, and how clean the equipment stays. Superfine sodium bicarbonate from food-grade suppliers goes though regular testing for heavy metals, impurities, and consistency. Each batch needs certification that it stays within limits for substances such as lead and arsenic—usually set in parts per million or billion. Shoddy products from questionable sources threaten both health and reputation.

Those who blend seasonings, leaven dough, or produce candies need stable ingredients. Off-flavors, clumping, or stray contaminants can throw off large batches. That’s why trusted manufacturers partner with suppliers using Hazard Analysis and Critical Control Points (HACCP) protocols, and often run extra tests for assurance.

Allergen and Sensitization Concerns

Most people eat foods with sodium bicarbonate without any trouble. Studies do not link high-purity forms to allergenic reactions. Concerns tend to focus on what rides along—such as traces of gluten, nuts, or milk. Suppliers offering superfine sodium bicarbonate for food applications must prevent cross-contamination through strict segregation. Any company blending custom baking mixes needs the same due diligence. As always, clear labeling helps consumers who manage allergies at home.

Nanoparticles and Digestive Safety

Some folks pause at the idea of “superfine” or “nano” powders in food. Currently available superfine sodium bicarbonate does not meet the technical definition for nanoparticles. Even if the grain becomes smaller, it keeps the same breakdown process in the digestive tract. Once mixed in water or dough, it reacts with acids like lemon juice or vinegar, releasing carbon dioxide as gas.

Stomach upset sometimes happens if people eat large amounts—think antacid abuse. That leads to bloating or, rarely, metabolic trouble. These issues depend on the dose, not the particle size. Regular culinary and manufacturing quantities stay well within safety limits.

Best Practices for Producers

Food safety always relies on trust, traceability, and routine checks. Superfine sodium bicarbonate from reputable producers with certifications like ISO 22000 keeps risk low. Purchasing managers need certificates of analysis and supply-chain transparency before bringing any additive into large-scale food operations.

Investing in proper training for employees who handle powders helps reduce spills and unwanted exposure. Manufacturers who listen to bakers and chefs often find practical feedback about how ingredient changes affect the texture and appearance of finished products.

Moving Forward with Confidence

Superfine sodium bicarbonate delivers clear technical advantages to the food industry, speeding up recipes and improving mouthfeel in the finished products. Quality and safety rely on using pure sources, reliable testing, and a transparent supply chain. Following these steps, this ingredient holds a safe spot on the shelf in homes and factories alike.

What is the difference between regular and superfine sodium bicarbonate?

Sodium Bicarbonate in Daily Life

Baking soda, or sodium bicarbonate, sounds like one of those ingredients that everyone keeps in the pantry for baking cookies or freshening the fridge. Many people never consider that there’s more than one type. Walk into a commercial bakery or even some health stores, and you might stumble across the term “superfine” on a bag of sodium bicarbonate. It might seem like marketing fluff, but there’s a real difference here that matters depending on the situation.

Regular Sodium Bicarbonate: The Household Staple

Most people know regular baking soda. The texture feels gritty between the fingers, sort of like table salt or fine sand. This stuff works in almost every standard baking application. It blends into cookie dough, cake batters, pancakes, and scrubs out tough stains on sinks. In households, many rely on it for cleaning and as an odor absorber because those larger particles work over time to neutralize acids and smells.

Pharmacies or big box stores offer the familiar orange box because it’s safe, versatile, and has a long shelf life. Science backs its use as a rising agent: it reacts with acid, releasing carbon dioxide bubbles that leaven bread and cakes, giving them that lift and fluffiness.

Superfine Sodium Bicarbonate: Texture and Speed Matter

Superfine variants look almost like powdered sugar. Run fingers through superfine sodium bicarbonate, and they’ll come away as if dusted with flour rather than salt. Food manufacturers, pharmaceutical companies, and certain industrial users ask for this refined version because its smaller particles dissolve faster and blend more consistently with other fine powders.

Recipes that require very rapid dispersion—think instant cake mixes or bath bombs—turn out better with a superfine grade. The difference goes beyond texture; speed of reaction changes. In delicate foods, you want rising ingredients to fully dissolve and distribute through the batter to prevent grittiness. In effervescent tablets, every bit of powder needs to react smoothly with moisture, offering thorough results in a glass of water or a therapeutic bath.

Real-World Impact

In baking, nobody wants to bite into a muffin and find a clump of baking soda. That’s a risk with regular sodium bicarbonate if it doesn’t mix well. Superfine options cater to chefs and makers who value the tiniest details in texture and flavor. The pharmaceutical industry relies on superfine for accuracy in dosage and faster reactions in medicine, where even spread counts.

On the industrial side, cleaning companies use superfine sodium bicarbonate for tasks like graffiti removal with blasting machines. The finer texture gets into tiny crevices and strips away residue quicker than grittier grades. Dental hygiene products often use superfine grades for gentle cleaning—nobody wants to scratch tooth enamel.

Choosing What Fits

The right choice depends on goals. Home cooks and DIY enthusiasts can stick to regular baking soda for most needs. For delicate baking, making fizzy bath bombs, or mixing your own personal care products, superfine does a better job. Commercial product makers or researchers in medicine don’t just look at the label—they study how each grain size changes the final product.

Consumer education plays a part. Plenty of people toss whatever’s nearest into a recipe, but for those interested in refining skills—whether in baking, cleaning, or crafting—a better understanding of what’s going into a mix makes all the difference. So next time a store shelf offers a choice, look for the clues in texture and consider what your task demands.

How should Superfine Sodium Bicarbonate be stored?

The Value of Proper Storage

Superfine sodium bicarbonate finds its place in all sorts of industries: baking, cleaning products, pharmaceuticals, and even fire extinguishers. Plenty of people handle this powder every day, but not enough spend time thinking about what happens between delivery and daily use. I’ve watched bags get tossed into any corner with open air, humidity, and sunlight breaking down not just the powder, but its effectiveness. Storing it wrong turns a reliable ingredient into an unpredictable one, sometimes with safety hazards thrown in for good measure.

Risks of Lackluster Storage

Improperly stored sodium bicarbonate clumps, cakes, and absorbs odors. Humidity soaks through thin packaging, and that accounts for more spoilage than most folks realize. One summer on a jobsite, I saw what happens when a supply closet shares space with a hot water tank: bags grew hard as bricks, and a third had to go straight to waste. Moisture eventually triggers decomposition, and nobody wants unusable powder in a pinch.

Basic Steps to Get Storage Right

Start with packaging. Most superfine grades ship in moisture-proof, food-safe bags or drums—always leave the powder inside the original container until ready for use. After opening, seal it tightly. Some producers include zip locks or double-seals for a reason. If transferring to secondary containers, use thick plastic buckets with gasket-sealed lids or glass jars with strong seals. Avoid thin paper sacks for any long-term storage.

Dryness is key. Humid environments kill the shelf life faster than almost anything else. Find a spot away from pipes, vents, windows, or doors that open often. Rooms with stable temperature and low humidity make all the difference. Consider using a desiccant packet if you’re storing large quantities or expect long-term storage. Good ventilation helps to minimize condensation risks, but avoid breezes that carry dust through the workspace.

Heat causes another round of problems—at higher temperatures, sodium bicarbonate can break down and lose potency. Steer clear of boilers, furnaces, or equipment that could cause dramatic shifts in air temperature. Most suppliers recommend keeping it below 30°C, but in my experience, even 25°C covers most issues.

Keeping Things Safe and Clean

Label all storage containers clearly. Cross-contamination with other chemicals can trigger reactions nobody expects. On one occasion, I watched a well-meaning coworker throw some into a bin marked for detergent: a mild mess, but it could have been worse if something more reactive had mixed in the bin. Prevent food-grade soda from picking up garage odors, strong spices, or even cleaning agents by storing it in odor-free areas.

Spills remain a risk because superfine powder floats easily and creates a mess or breathing hazard. Clean up with a damp cloth instead of sweeping, since dry sweeping spreads particles in the air. Gloves keep skin clean, and some folks prefer a basic dust mask for big batches.

Why Long-Term Care Pays Off

A little effort up front keeps supply loss low and keeps the powder safe for all intended uses. As food processing and pharmaceutical regulations tighten, safe storage only grows in importance. This matters for shelf life, cost savings, and health reasons. I’ve seen companies turn their luck around just by setting up a dry, cool storeroom with tight-lidded buckets and regular checks for moisture or breaking seals. There’s no trick to this: just respect the material, keep it dry and sealed, and avoid shortcuts that seem easy but cost money and headaches later.

Can Superfine Sodium Bicarbonate be used for cleaning or personal care purposes?

What Makes Superfine Sodium Bicarbonate Different?

Sodium bicarbonate, or baking soda, shows up in most kitchens and medicine cabinets. Grind it down even finer and you get “superfine” sodium bicarbonate, a powder with noticeably smaller particles than the typical stuff in a yellow box. Manufacturers tout this form for its smooth texture and potential to deliver extra effectiveness in certain applications. But does a superfine grind actually make a difference in daily cleaning routines or personal care?

Home Cleaning: Scrubbing Power Without Scratching

Grit makes all the difference for jobs involving gentle abrasion. Old-fashioned baking soda often feels rough, so it works well on hard surfaces like sinks and stovetops. Superfine sodium bicarbonate, due to its powdery consistency, glides over surfaces and cleans without leaving scratches, even on glass stovetops and delicate tile. This appeals to anyone who's watched a favorite mug or countertop get dull. The texture mixes smoothly in water, turning into a mild scouring paste or soaking solution. Chemical safety sheets report no added risks from using this material in the home as long as dust is kept out of the air. In busy families with kids, that means less risk of inhaling gritty particles while cleaning up spills or dried-on messes.

Personal Care: A Softer Touch

Many people have tried making their own toothpaste or face scrub with ordinary baking soda. The gritty nature can make skin and teeth feel raw. Superfine sodium bicarbonate promises something different: a silky powder that exfoliates gently. Dermatologists often caution against scratchy scrubs that harm the skin barrier, and superfine powder may sidestep this issue. Oral health journals—including studies referenced by the American Dental Association—note that baking soda effectively cleans teeth without damaging enamel. A softer, finer version can feel less abrasive on gums while still neutralizing acids and cleaning away stains. Homemade deodorant recipes and bath soaks also benefit, blending into oils and bathwater much more smoothly with fine powder. As always, those with very sensitive skin should spot test first, since baking soda’s alkalinity may cause irritation for some.

Impact on Allergies and Respiratory Health

Dust from cleaning powders sometimes triggers sneezing or coughing, especially for people with asthma. Superfine sodium bicarbonate scatters more easily. The best practice includes using a damp cloth during cleaning, and keeping powders sealed in airtight containers. This helps avoid unnecessary dust clouds and wasted product. I once switched exclusively to superfine powder for bathroom cleaning, and my family noticed less lingering residue in the air—and fewer complaints from my youngest, who deals with allergies.

Environmental Considerations and Budget

Superfine variants cost more at the store. Some buyers expect bigger results, but both superfine and regular sodium bicarbonate break down safely in water and don’t harm the environment. There’s no long-term buildup in pipes or waterways, unlike some harsher chemicals. Every household makes its own decision about spending a little more for the convenience and gentle touch of superfine powder. For families with babies or older adults, the softer texture sometimes feels worth the price.

Practical Solutions for Home and Health

Experimenting with both versions can help you pinpoint what works best for regular tasks. Reserve superfine sodium bicarbonate for glass, delicate surfaces, or personal care recipes where texture makes a difference. For heavy-duty scrubbing, standard baking soda still shines. Simple swaps and smart storage offer even greater benefits than the fanciest label on the shelf.

Superfine Sodium Bicarbonate
Superfine Sodium Bicarbonate
Names
Preferred IUPAC name Sodium hydrogen carbonate
Other names Baking Soda
Bicarbonate of Soda
Sodium Hydrogen Carbonate
Bread Soda
Carbonic Acid Monosodium Salt
Pronunciation /ˈsuː.pər.faɪn ˌsəʊdiəm baɪˈkɑː.bə.neɪt/
Preferred IUPAC name Sodium hydrogen carbonate
Other names Sodium Hydrogen Carbonate
Baking Soda
Bicarbonate of Soda
Sodium Acid Carbonate
NaHCO₃
Pronunciation /ˈsuː.pər.faɪn ˌsoʊ.di.əm baɪˈkɑː.bə.neɪt/
Identifiers
CAS Number 144-55-8
Beilstein Reference 1301142
ChEBI CHEBI:32139
ChEMBL CHEMBL1357
ChemSpider 5959
DrugBank DB01390
ECHA InfoCard 03-2119486976-30-0000
EC Number 205-633-8
Gmelin Reference 82244
KEGG C00288
MeSH D001672
PubChem CID 516892
RTECS number VZ0950000
UNII 49GYP2Q4FH
UN number UN3077
CompTox Dashboard (EPA) urn:CBCDQ-6P7KJC57QS
CAS Number 144-55-8
Beilstein Reference 1713883
ChEBI CHEBI:32139
ChEMBL CHEMBL1356
ChemSpider 54626
DrugBank DB01362
ECHA InfoCard 05b346c1-4233-4e10-89b1-80b1bca6b13c
EC Number 205-633-8
Gmelin Reference 12655
KEGG C00088
MeSH D006983
PubChem CID 516892
RTECS number VZ0950000
UNII F4ZVQA503V
UN number UN3077
Properties
Chemical formula NaHCO₃
Molar mass 84.01 g/mol
Appearance White crystalline powder
Odor Odorless
Density 2.20 g/cm³
Solubility in water 7.8 g/100 ml (20 °C)
log P -0.22
Acidity (pKa) 6.3
Basicity (pKb) 8.3
Magnetic susceptibility (χ) -19.7 × 10^-6 cm³/mol
Refractive index (nD) 1.380
Viscosity 25~100 mPa·s
Dipole moment 1.87 D
Chemical formula NaHCO3
Molar mass 84.01 g/mol
Appearance White crystalline powder
Odor Odorless
Density 2.20 g/cm³
Solubility in water 7.8g/100ml (20°C)
log P -7.624
Acidity (pKa) 6.3
Basicity (pKb) 8.3
Viscosity 1.0% water solution: 1.10 mPa.s
Dipole moment 1.87 D
Thermochemistry
Std molar entropy (S⦵298) 102.6 J/(mol·K)
Std enthalpy of formation (ΔfH⦵298) −947.7 kJ/mol
Std enthalpy of combustion (ΔcH⦵298) -947.7 kJ/mol
Std molar entropy (S⦵298) 102.2 J/(mol·K)
Std enthalpy of formation (ΔfH⦵298) -947.7 kJ/mol
Std enthalpy of combustion (ΔcH⦵298) -947.7 kJ/mol
Pharmacology
ATC code A02AA01
ATC code A02AA01
Hazards
Main hazards No significant hazard.
GHS labelling GHS07
Pictograms GHS07
Signal word Not classified
Hazard statements No hazard statements.
Precautionary statements Store in a dry place. Store in a closed container. Dispose of contents/container in accordance with local/regional/national/international regulations.
NFPA 704 (fire diamond) 0-0-1
Lethal dose or concentration LD50 (oral, rat): > 4,200 mg/kg
LD50 (median dose) LD50 (median dose): Oral, rat: > 4,220 mg/kg
NIOSH VZ0950000
PEL (Permissible) Not Established
REL (Recommended) 5 mg/m³
Main hazards May cause irritation to eyes, skin, and respiratory system
GHS labelling GHS07, Warning, H319: Causes serious eye irritation., P264, P280, P305+P351+P338, P337+P313
Pictograms GHS07
Signal word No signal word
Hazard statements Not a hazardous substance or mixture according to the Globally Harmonized System (GHS).
Precautionary statements Store in a dry place. Store in a closed container. Dispose of contents/container in accordance with local/regional/national/international regulations.
NFPA 704 (fire diamond) 0-0-0-Specific
Lethal dose or concentration LD50 Oral Rat: 4220 mg/kg
LD50 (median dose) LD50 (median dose): Oral, rat: > 4,220 mg/kg
NIOSH SCB
REL (Recommended) 10 mg/m³
Related compounds
Related compounds Sodium carbonate
Sodium hydroxide
Potassium bicarbonate
Calcium carbonate
Ammonium bicarbonate
Related compounds Sodium carbonate
Potassium bicarbonate
Ammonium bicarbonate
Sodium chloride