Sodium Hydrogen Carbonate: A Closer Look at an Everyday Compound
Historical Development
Back in the late 18th century, as chemists experimented with substances taken from mineral springs and kitchen pantries, sodium hydrogen carbonate found a spot in both science and daily life. Its roots trace to the French Revolution, when serious trouble with salt shortages made it clear this material could offer value beyond flavor. Then, a couple of centuries ago, industrial-scale production kicked off after chemists refined the Leblanc process, later replaced with the Solvay process. This move shaped not just baking aisles but household cleaning and medical supplies, anchoring sodium hydrogen carbonate firmly in both industry and home use. Its value climbed thanks to adaptability, from softening bread dough to dousing grease fires and dealing with bee stings. Stories throughout the 19th and 20th centuries point to its versatility, so much so that before harsh chemical cleaners hit supermarkets, many families counted on this white powder for all-purpose scrubbing and deodorizing.
Product Overview
Sodium hydrogen carbonate, widely recognized as baking soda, shows up as a fine, white, odorless powder. Companies package it as a food additive, cleaning agent, and mild leavening agent. Its chemical formula, NaHCO₃, gives it plenty of industrial and household uses, and many products on supermarket shelves include it as a go-to for freshness and chemical stability.
Physical & Chemical Properties
With a molecular weight of about 84 grams per mole and high water solubility, sodium hydrogen carbonate holds its form as a crystalline solid until heated, when it decomposes into sodium carbonate, water, and carbon dioxide gas. In the kitchen, this property creates air bubbles in doughs and batters. It doesn't smell, tastes mildly alkaline, and dissolves easily in water to form solutions around a pH of 8 to 9. It starts to break down at temperatures around 50 degrees Celsius, which suits most baking applications.
Technical Specifications & Labeling
Industrial and food-grade sodium hydrogen carbonate differ in impurity content and purity, but both labels must list sodium content and intended use. Many suppliers offer technical data sheets showing assay percentage (usually above 99%), loss on drying, and maximum trace contaminants like heavy metals. Whether in a 1-kg kitchen box or a 25-kg industrial bag, proper labeling lists hazard classifications (though minimal), batch code, and best-before dates. The labeling must comply with regulations specific to its target use, with food products displaying clear allergen information and any additives.
Preparation Method
The bulk of sodium hydrogen carbonate today comes from the Solvay process. By reacting sodium chloride, ammonia, and carbon dioxide in water, factories create an environment where sodium ions bind with bicarbonate, forming sodium hydrogen carbonate as a precipitate. After filtration and drying, the product ends up either pure enough for pharmaceuticals or slightly less refined for cleaning agents or swimming pools. Earlier times relied on natural trona deposits, which remain a source in some regions. The controlled process keeps costs low and impurity levels in check, making the Solvay process the backbone of global supply.
Chemical Reactions & Modifications
Sodium hydrogen carbonate acts as a mild base and reacts fast with acids to release carbon dioxide. In baking, this reaction creates the signature lift in cakes and biscuits, as acid from cream of tartar or yogurt starts the transformation. In water, it can buffer small shifts in pH, helping maintain conditions gentle enough for aquariums and beverages. Heating triggers its breakdown into washing soda and CO₂, while strong acids drive out rapid gas release. Sodium hydrogen carbonate’s ability to absorb odors or neutralize chlorine also leads to custom modifications in water treatment and cleaning products.
Synonyms & Product Names
Across markets, sodium hydrogen carbonate answers to many names: baking soda, bread soda, bicarbonate of soda, and sodium bicarb. Pharmaceutical supplies lean on United States Pharmacopeia (USP) or European Pharmacopeia (EP) grade labeling. Other aliases include E500 (as a food additive code), carb soda, and sodium acid carbonate in older texts. No matter the tag, most people recognize the little orange box meant for freshening fridges and keeping cookies light.
Safety & Operational Standards
Decades of use have shown sodium hydrogen carbonate to be quite safe at expected exposure levels. The U.S. Food and Drug Administration gives it ‘generally recognized as safe’ (GRAS) status for food use. Handling guidelines recommend keeping the powder dry and containers tightly sealed, with basic dust masks and gloves during large-scale transit or mixing. Despite low toxicity, inhaling dust may irritate sensitive airways, so automated bulk transfers in factories use closed systems. For spill control, water washes it away quickly, though environmental agencies require disposal that prevents waterways from receiving large, alkaline loads.
Application Area
Few products offer the range of sodium hydrogen carbonate. In bakeries, it sits beside flour as a direct leavener. Every dentist’s office stocks toothpaste with its grit, which helps polish teeth and neutralize acids. Pool owners use it to nudge up pH without wild swings, and firefighters carry it in powder form for chemical extinguishers that douse kitchen grease fires without toxic fumes. Hospitals blend it into IV solutions for patients with severe acidosis. Laundry detergents use it to soften water, while industrial cleaning crews pair it with citric acid to scour brewery tanks or food processing lines. As a deodorizer, it beats musty odors in refrigerators, carpets, and even athletic gear.
Research & Development
Chemists and engineers still look for new directions to stretch sodium hydrogen carbonate’s capabilities. Lately, research focuses on environmental clean-up, where it mops up acid spills or sucks up odor-causing gases. Energy researchers test it in carbon capture systems that reduce emissions from power plants. Another hot spot involves pharmaceuticals, where controlled-release coatings use the compound to manage drug delivery rates. Over in food science, studies target its role in gluten-free baking, since its friendly reaction with acids supports better texture without needing wheat proteins.
Toxicity Research
Toxicologists dive into high-dose studies to set clear safety margins. At typical dosages in baked goods or personal care, sodium hydrogen carbonate causes little trouble beyond possible stomach upset from excess. Long-term exposures in workers mixing bulk powders show no measurable effect on reproduction or cancer risk. Even in cases of accidental overdose, hospital experience points to manageable, reversible symptoms, with robust medical protocols on hand. The main concern crops up in rare kidney or heart patients who can't handle extra sodium, so doctors caution those individuals to steer clear.
Future Prospects
With stricter environmental rules and a search for mild, safe alternatives to harsh chemicals, sodium hydrogen carbonate’s star keeps rising. Municipal water planners eye it for pH control and odor management. Green cleaning companies build new products around its gentle scrubbing action and low reactivity, pitching it to families wanting fewer synthetic chemicals at home. Even space agencies consider it for closed habitats, where odor and CO₂ control prove crucial. Looking ahead, more work in biochemistry and environmental design should unlock new blends and products based on this familiar, adaptable white powder.
Everyday Applications in the Kitchen
Sodium hydrogen carbonate, most folks call it baking soda, finds its place in nearly every kitchen. It does that simple trick when dough rises; breads and cakes don’t get fluffy on their own. By mixing with acids like lemon juice or yogurt, baking soda gives off carbon dioxide. Those bubbles make pastries light and soft. At home, it also takes on dirty kitchens. Grease, kettle stains, funny fridge smells—all fade with a scrub and a sprinkle of baking soda.
Health and Hygiene Uses
Many families, including mine, trust baking soda to keep things clean. Toss some in with toothpaste to polish teeth and take away mild stains. Mouth feels fresher, and teeth look better. Doctors have recommended baking soda to help with heartburn. Swallowing a small dose can calm stomach acid quickly. Still, it matters to stick to recommended amounts, since too much makes trouble, especially for those watching blood pressure or kidney health.
Household Cleaning Solutions
Old carpet odors, smelly sneakers, stained coffee mugs—all get tackled at home with baking soda. No harsh chemicals. It can scrub sinks without scratching. It lifts stuck-on food from pots that burned on the stove. Some folks even toss a scoop in the laundry for fresher-smelling clothes. It’s a quiet hero for messes both small and stubborn.
Industrial and Science Lab Uses
Sodium hydrogen carbonate moves far beyond the home. Factories use it in fire extinguishers. It helps put out small kitchen and electrical fires, safer than throwing water. Water treatment plants count on this compound too. It can level out acidic water, important for safe drinking water. Science teachers reach for it in classrooms; kids love seeing the fizz when baking soda meets vinegar. In large pharmacies, it shows up during the manufacture of some antacids and personal care products. Animal feed sometimes contains small amounts to keep livestock digestion balanced.
Concerns and Solutions
One might overlook sodium hydrogen carbonate’s impact by assuming it is always gentle. Excessive use, especially in health or cleaning routines, has consequences. For those with health issues related to sodium or the kidneys, doctors warn against casual overuse. In homes, children can mistake bright white powder for something safe to eat. Parents can keep pantry items labeled and out of reach.
Some ask if frequent use in cleaning harms the environment more than advertised. Unlike harsh cleaners, sodium hydrogen carbonate doesn’t harm water systems much. It breaks down naturally, though keeping waste down stays important. Moving toward refillable containers and avoiding single-use packaging helps. Families and businesses who enjoy the cleaning power can lean into bulk purchasing and more eco-friendly storage.
Everyday Chemistry, Lasting Value
Life rarely feels simple. Having an affordable, multi-use compound handy feels like keeping a trusted tool in your back pocket. It links generations—what my grandmother kept under the sink is still making life a little easier today. For families, for classrooms, and for cleaner cities, sodium hydrogen carbonate proves old ideas sometimes have the most staying power.
Understanding Sodium Hydrogen Carbonate
Sodium hydrogen carbonate, known by most people as baking soda, shows up in kitchens, classrooms, and even some medicine cabinets. The stuff might seem basic, but it plays a role in cooking, cleaning, and a few health hacks passed down from grandparents. The question pops up now and then: can eating or drinking something so multi-purpose be truly safe?
Food-Grade Baking Soda and Its Place in Diet
Supermarkets stock baking soda right next to the baking powder and cream of tartar. Cooks rely on it for fluffier pancakes and lighter cakes because it reacts with acids and helps dough rise. People pour it into tomato sauce or beans to soften the acidity. Brands sell food-grade sodium hydrogen carbonate, held to quality standards so it won’t introduce harmful contaminants. You see it listed on food labels and even soft drinks as additive E500. The U.S. Food and Drug Administration (FDA) gives it a thumbs-up as “generally recognized as safe” for use in foods.
History in Home Remedies and Medicine
Across generations, families have turned to small doses for heartburn or sour stomach. Grandparents talk about mixing half a teaspoon into water after a heavy meal. Hospitals use it for certain conditions where the blood turns too acidic. At home, the dosing sticks to small amounts and occasional use. Doctors warn that using too much or too often can lead to problems like alkalosis, where the body’s pH shifts higher than normal, or raise sodium in the blood. People with kidney or heart conditions carry more risk if they take extra sodium by eating or drinking baking soda. No one I know uses it without paying attention to how much goes in. Modern pharmacists still recommend reading labels, since high sodium intake sits linked with raised blood pressure.
Potential Issues with Overuse
Diving into forums and online health groups, stories turn up about people trying large amounts of baking soda to “cleanse” or treat illnesses, and that’s where trouble starts. The Centers for Disease Control and Prevention (CDC) published reports of emergency room visits after home remedies went wrong. Some ended up with muscle cramps, vomiting, or worse. The problem stems from quantity, not the ingredient itself. Small culinary doses don't match the risks from teaspoons stirred into daily drinks. Cooking and baking doses, usually less than a teaspoon per serving, have no real harm for most healthy adults.
Expert Insights and Practical Guidance
Evidence from toxicologists and dietitians keeps it simple: food-grade sodium hydrogen carbonate in reasonable baking or cooking doses gives no reason for fear. Companies must meet strict regulations before baking soda hits shelves labeled “food-grade.” For anyone with special health concerns, consulting a doctor or dietitian clears up confusion about how sodium or bicarbonate affects their own body.
Common-Sense Boundaries and Solutions
Safe use lines up with common sense: follow recipes, avoid daily supplementation unless recommended by a healthcare provider, store in a dry, cool spot. If using as an antacid, keep to small doses and don’t repeat throughout the day, especially for kids or pregnant people. The food industry has decades of safe records for baking soda. For peace of mind, start with a single ingredient in the kitchen and check if it carries the “food grade” note. Education, not elimination, keeps sodium hydrogen carbonate both handy and safe.
Let’s Clear Up The Confusion
Some food labels throw out fancy terms that leave people standing in the baking aisle, staring in confusion. Sodium hydrogen carbonate sounds like something out of a high school chemistry textbook, but you’re holding a bright box that says “baking soda.” So what gives? People use both names, but what’s actually in the box?
What’s in the Box?
Here’s the deal: sodium hydrogen carbonate and baking soda refer to the exact same compound. The chemical formula is NaHCO3. Scientists call it sodium hydrogen carbonate. Grocery store boxes call it baking soda. Language can trip people up, but the white powder inside is the same thing.
My Kitchen Story
Growing up, our family used baking soda everywhere. There was always an open box tucked in the fridge, soaking up weird odors. If someone ate too much spicy food, they’d reach for a glass of water with a spoonful stirred in. My grandmother swore by baking soda and vinegar to unclog drains, foaming up with cheerful bubbles. Later, they taught me how baking soda helps cookies puff up instead of staying flat. In every box, the ingredient label just said “sodium bicarbonate.” Same as what you find in science labs.
Why People Care about the Difference
Fact is, people worry that scientific names mean there’s something unnatural about a product. Some shoppers fear they’ll end up sprinkling the wrong chemical in their cake batter. Grocery stores don’t clear things up by switching up labels or throwing scientific jargon around. Plus, there’s baking powder. Many folks swap “baking powder” and “baking soda,” but they’re not the same. Baking powder actually contains baking soda, along with acids and starches.
If you’re looking at pure baking soda or sodium hydrogen carbonate, you’re looking at the same thing. Use it in baking, in cleaning, or in old family home remedies. No need to be spooked by the label.
Why Names Matter
The food industry and product brands often switch from science terms to friendlier names so people feel comfortable. It’s a smart move, but it can backfire. Grocery store shelves fill up with different terms for what is really the same thing. That can make people suspicious, especially if they worry about additives sneaking into their food. Clear labels build trust.
Solutions to the Confusion
Companies could help by using both names on their packaging. Imagine a package that says, “Baking Soda (Sodium Hydrogen Carbonate)” in big, clear print. More honest labeling means shoppers waste less time searching for information. Nutrition educators and food safety experts should talk more about how different names can point to a single ingredient. Strong science and good communication smooth out consumer trust.
Simple Chemistry, Everyday Uses
Sodium hydrogen carbonate sounds intimidating, but it’s a broadly useful, safe household staple. People trust what they understand. With clearer packaging and straight talk, the confusion disappears. Anyone can use baking soda in the kitchen or around the house without worry, knowing there isn’t some hidden catch in the fine print. The science and the supermarket shelf finally match up.
Why People Reach for Sodium Hydrogen Carbonate
Most folks know it as baking soda, a white powder sitting quietly in that little orange box. The science name, sodium hydrogen carbonate, sounds fancier than it acts. Growing up, my grandmother always had a stash of it under her sink, promising it could zap away stains and deal with strange odors before commercial cleaners ever hit our shelves.
Everyday Jobs in the Kitchen and Beyond
A box of baking soda pulls its weight in the kitchen, especially when something burned clings to a pan. A sprinkle, a tough sponge, and a dash of elbow grease usually tackle stuck-on messes. For fridges with questionable smells, an open container in the back absorbs stink better than any scented air freshener. Studies from the American Cleaning Institute confirm sodium hydrogen carbonate’s knack for neutralizing acids and bases, explaining its popularity for odor-fighting.
Coffee mugs and tea cups stained by daily use lose their brown rings with a damp cloth and a pinch of the powder. Drains often gurgle less when treated with a mix of this powder and vinegar, followed by hot water. Greasy countertops, silverware with tarnish, and even grills with caked residue benefit from this approach.
More Than Cleaning: Safety and Skin
Parents sweat over toxic chemicals within reach of small kids or pets. Baking soda, approved as safe by the U.S. Food and Drug Administration, doesn’t worry parents in the same way as bleach or ammonia under the sink—so it’s no surprise many swap commercial products for a safer touch. Textbooks and safety data back up its low toxicity, and doctors even recommend it to soothe bug bites or itchy skin after too much sun.
Plenty of people with sensitive skin search for alternatives to harsh scouring powders. Sodium hydrogen carbonate’s mild abrasiveness knocks dirt loose without scratching delicate sinks or fresh paint. That’s helpful when a regular cleaning agent leaves hands raw or surfaces dull.
Environmental Impact and Clean-Up Habits
Wastewater full of chemical cleaners causes headaches for local water treatment plants. Sodium hydrogen carbonate breaks down naturally and doesn’t threaten fish or plants downstream. Environmental Protection Agency reports highlight the trouble chlorine and phosphates cause, making a plain cleaning agent like this powder a safer bet for folks who care about what heads down the drain.
Switching out just a few bottles of harsh cleaner each year with a few scoops of baking soda adds up. Fewer single-use plastic bottles, less harmful runoff, and a little less waste piling up at curbside pick-ups.
Room for Improvement and Where It Falls Short
No single product works for every mess. Sodium hydrogen carbonate won’t beat heavy mold, oil spills, or caked grime in old bathrooms. Wrong tool, slow results. For big commercial kitchens or healthcare settings, stronger disinfectants stay necessary—bacteria and viruses demand up-to-code sanitizing. Experts from the Centers for Disease Control and Prevention warn against relying solely on gentle powders for deep cleaning or sterilization.
Small households, eco-conscious cleaners, and allergy sufferers all find value in making sodium hydrogen carbonate part of their routine. For the biggest, toughest jobs, the trusty orange box takes a back seat to industrial strength products. For everything in between, it earns a spot on the shelf, just like it did in my grandmother’s kitchen.
Getting the Basics Right
Plenty of folks know sodium hydrogen carbonate by its kitchen name, baking soda. It might look harmless in a little orange box, but how you store this stuff makes a real difference—both at home and in larger settings like bakeries, laboratories, or manufacturing plants. This isn’t just about making cakes rise or cleaning the fridge; properly managing this compound keeps quality up and health risks low.
Moisture: The Main Culprit
One mistake I see too often is leaving baking soda exposed on a counter or shelf. Sodium hydrogen carbonate absorbs moisture like a sponge. Clumpy, lumpy powder is a sign that water has gotten in, and that means it starts breaking down and losing its punch. Damp storage also shortens shelf life, hurts performance, and creates a breeding ground for contamination. A sealed container with a tight-fitting lid, put somewhere cool and dry, does wonders.
Keep It Out of the Sun and Away from Heat
Many chemicals change under heat or light. Sodium hydrogen carbonate is no different. On a hot shelf or under direct sunlight, the powder can react and start to break down into less useful forms. That means less fizz when it’s time to clean a sink or make dough rise. Think pantry shelves, closed cabinets, or storerooms where the temperature stays low and steady.
Kids and Pets: Out of Reach
Lots of homes keep baking soda in easy-to-grab spots, but that leaves it within reach of kids or pets who get curious. If a child swallows a bunch—or an animal gets into it—there’s a health risk. Large storage in workspaces needs an extra layer of caution: clear labeling, sturdy containers, and a spot high up or locked behind a cabinet door. Safety data sheets belong right there too.
Don’t Store Near Acids
Sodium hydrogen carbonate reacts with acids. Most people have both in the kitchen: vinegar, lemon juice, or cleaning supplies. Mixing by accident could make a mess, release gas, or at scale, even cause minor accidents. Keeping ingredients a shelf apart, and separated at work, keeps the surprise reactions to a minimum.
Bulk Storage: Extra Steps Matter
In places where tons of sodium hydrogen carbonate move—think food manufacturers, pool supply depots, chemical plants—the scale of risk jumps up. Product should go in sturdy bags or drums, sealed well, and stacked on pallets so it stays off damp floors. Storing in a dry warehouse with ventilation keeps air fresh, prevents condensation, and helps prevent caking. Regular inspections for leaks, pests, or package damage catch small issues before they become costly.
Practical Tips Everyone Can Follow
A little effort in storage saves trouble later. Rotating stock makes sure older product gets used first, trimming waste. Writing the date of opening right on the package helps, especially if you use baking soda only once in a while. For the home baker or the large warehouse manager, clear labeling stops confusion and mistakes. OSHA and food safety guidelines call for written instructions and training where workplaces use sodium hydrogen carbonate every day.
Bottom Line: Managed Storage Stretches Value
Quality and safety depend on setting up a low-moisture, cool, well-labeled storage spot. The payoff shows up in better results, fewer recalls, and a safer space at home and on the job. In my own kitchen, a simple airtight jar in a cool cabinet keeps baking soda good for months and saves me from tossing half-used boxes. A little care adds up—no reason to leave it to chance.
| Names | |
| Preferred IUPAC name | Sodium hydrogen carbonate |
| Other names |
Baking Soda
Bicarbonate of Soda Sodium Bicarbonate Bread Soda |
| Pronunciation | /ˌsəʊ.di.əm haɪˈdrɒ.dʒən kɑːˈbɒn.eɪt/ |
| Preferred IUPAC name | sodium hydrogencarbonate |
| Other names |
Baking Soda
Bicarbonate of Soda Sodium Bicarbonate Bicarbonate Bread Soda Cooking Soda |
| Pronunciation | /ˌsoʊ.di.əm haɪˈdrɒ.dʒən kɑːrˈbɒn.eɪt/ |
| Identifiers | |
| CAS Number | 144-55-8 |
| 3D model (JSmol) | `Na([O-]C(=O)O)` |
| Beilstein Reference | 1090374 |
| ChEBI | CHEBI:32139 |
| ChEMBL | CHEMBL1357 |
| ChemSpider | 54616 |
| DrugBank | DB02210 |
| ECHA InfoCard | 100.027.010 |
| EC Number | 205-633-8 |
| Gmelin Reference | 922 |
| KEGG | C01353 |
| MeSH | D017782 |
| PubChem CID | 516892 |
| RTECS number | VZ0950000 |
| UNII | OE875SXE89 |
| UN number | UN3077 |
| CAS Number | 144-55-8 |
| 3D model (JSmol) | `Na([O-])C(=O)O` |
| Beilstein Reference | 3920112 |
| ChEBI | CHEBI:32139 |
| ChEMBL | CHEMBL1359 |
| ChemSpider | 5758 |
| DrugBank | DB01390 |
| ECHA InfoCard | 01b6c9b6-4524-48a9-ac79-3e1c41b4c5c9 |
| EC Number | 205-633-8 |
| Gmelin Reference | 12394 |
| KEGG | C01353 |
| MeSH | D017782 |
| PubChem CID | 516892 |
| RTECS number | VZ0950000 |
| UNII | OEHBP1HL8H |
| UN number | UN3077 |
| CompTox Dashboard (EPA) | DTXSID2023927 |
| Properties | |
| Chemical formula | NaHCO3 |
| Molar mass | 84.0066 g/mol |
| Appearance | White crystalline powder |
| Odor | Odorless |
| Density | 2.2 g/cm3 |
| Solubility in water | 7.8 g/100 mL (20 °C) |
| log P | -4.98 |
| Vapor pressure | Negligible |
| Acidity (pKa) | 6.4 |
| Basicity (pKb) | 7.61 |
| Magnetic susceptibility (χ) | −22.0×10⁻⁶ cm³/mol |
| Dipole moment | 1.87 D |
| Chemical formula | NaHCO3 |
| Molar mass | 84 g/mol |
| Appearance | A white crystalline powder |
| Odor | Odorless |
| Density | 2.16 g/cm³ |
| Solubility in water | 8.6 g/100 mL (20 °C) |
| log P | -11.7 |
| Acidity (pKa) | 6.3 |
| Basicity (pKb) | 7.6 |
| Magnetic susceptibility (χ) | +10.4e-6 |
| Dipole moment | 1.41 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 102.0 J·mol⁻¹·K⁻¹ |
| 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) | 102.0 J·mol⁻¹·K⁻¹ |
| 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 | A02AA02 |
| Hazards | |
| Main hazards | No significant hazards. |
| GHS labelling | GHS07 |
| Pictograms | GHS07 |
| Signal word | No signal word |
| Hazard statements | The product 'Sodium Hydrogen Carbonate' has the following hazard statement: "Not a hazardous substance or mixture according to Regulation (EC) No. 1272/2008. |
| NFPA 704 (fire diamond) | NFPA 704: 0-0-0 |
| Lethal dose or concentration | LD50 Oral Rat 4220 mg/kg |
| LD50 (median dose) | LD50 (median dose): 4220 mg/kg (oral, rat) |
| NIOSH | RQ: Not listed |
| PEL (Permissible) | Not Established |
| REL (Recommended) | 2 g/kg |
| Main hazards | Not hazardous according to GHS classification. |
| Pictograms | GHS07 |
| Signal word | No signal word |
| Hazard statements | Not a hazardous substance or mixture. |
| NFPA 704 (fire diamond) | 0-0-0 |
| Explosive limits | Non explosive |
| Lethal dose or concentration | LD50 oral rat 4220 mg/kg |
| LD50 (median dose) | LD50 (median dose): Oral Rat 4220 mg/kg |
| NIOSH | VZ0950000 |
| PEL (Permissible) | Not established |
| REL (Recommended) | 30 mg/kg |
| Related compounds | |
| Related compounds |
Sodium carbonate
Potassium bicarbonate Ammonium bicarbonate Calcium bicarbonate Sodium hydroxide Sodium chloride |
| Related compounds |
Sodium carbonate
Potassium bicarbonate Ammonium bicarbonate Sodium bisulfite |