Soda Ash: Building Blocks of Modern Industry
Historical Development
Soda ash, known to chemists as sodium carbonate, has been shaping the industrial world for centuries. Early civilizations figured out how ashes from burned plant matter could transform oil and sand into basic glass. By the late 18th century, the demand for soda ash soared along with the glass and soap industries. Nicolas Leblanc designed a synthetic process, using salt, limestone, and coal, marking the step from artisanal to industrial production. Leblanc’s method reigned until Ernest Solvay introduced a new approach in the 1860s. The Solvay process ran on brine and limestone, delivering cleaner output and fewer environmental problems. This upgrade laid the groundwork for the current global production model, and even now, most manufacturers stick closely to Solvay’s method. Native deposits, especially in the United States, added a twist—mines in Wyoming produce natural soda ash with less energy than the synthetic route, setting up competition between mined and manufactured forms.
Product Overview
Soda ash blends into a staggering range of goods. Glass makers consume more than half of the world’s supply, relying on it to turn sand into windows, bottles, and fiber optics. Detergents and chemical manufacturers need soda ash to clean up water and refine minerals. The textile sector uses it as a pH regulator and cleaning booster. Baking powder, paper, and even environmental cleanup efforts turn to soda ash for its ability to react predictably and safely. This powdery, white material rarely gets noticed by the public, but daily life would run into trouble without it. Plant operators care about the form they get—light and dense soda ash suit different handling and shipping demands.
Physical & Chemical Properties
In its purest form, soda ash shows up as a fine, white crystalline substance. It dissolves easily in water, creating a strongly alkaline solution. It feels slippery because it interacts with oils and fats, a key reason it appears in soaps and detergents. At room temperature, it remains stable, resisting breakdown or evaporation—meaning it stores well provided it stays dry. Chemically, sodium carbonate brings both carbonate ions and high pH, letting it neutralize acids, soften water, or help mineral reactions along. Melting comes around 851°C, so it stands up well to heat in glass making or metallurgy. Unlike caustic soda, it causes less corrosion, but contact with eyes or skin risks irritation.
Technical Specifications & Labeling
Suppliers label soda ash by sodium carbonate content, particle size, and moisture, since industries track these numbers closely. Purity often runs 99.5% or higher for most applications. Trace levels of chlorides, sulfates, and iron will matter if glass makers chase perfect clarity or chemists need accurate reactions. Bulk packaging calls for moisture-blocking liners, usually in heavy-duty bags or silos, as soda ash absorbs water from the air. Clear, durable markings list product grade, net weight, and date of manufacture—a legal must in most markets. Bulk shipments follow local transport rules, with hazardous material codes assigned for large containers, especially in the EU or U.S.
Preparation Method
Most of the global soda ash today comes from the Solvay process. This route begins with common salt and limestone. Factories bubble ammonia through brine, then add carbon dioxide. Sodium bicarbonate drops out first and, after filtering, a few hours in a furnace drive out water and carbon dioxide—yielding pure soda ash. The leftover brine, now packed with ammonia, gets recycled after removing by-products like calcium chloride. U.S. mines use a different story—large trona beds get crushed and water-extracted, then refined and fired to produce soda ash with fewer chemical steps. Each method depends on raw material price and access, but both support large-scale operations.
Chemical Reactions & Modifications
Soda ash thrives in a wide menu of chemical reactions. It neutralizes acids fast, creating salts, water, and bubbling carbon dioxide. Tossed into hard water, it binds up calcium and magnesium, breaking scale or boosting cleaning power. When mixed with sand and lime at high heat, soda ash forms glass of all kinds. It teams up with other chemicals to produce sodium silicates, soaps, dyes, and natural rubber. Chemical engineers sometimes tweak its structure, forming variants like sodium sesquicarbonate or percarbonate, expanding soda ash’s reach to new household and industrial products.
Synonyms & Product Names
Soda ash shows up under a long list of trade names and chemical alias. Sodium carbonate serves as the full scientific designation. In industry, “soda ash light” and “soda ash dense” refer to low and high bulk density grades. Some old labels stick around—washing soda, sal soda, and sodium salt of carbonic acid all point to the same family of compounds. European and Asian markets might use local product names, but the core chemical identity never changes.
Safety & Operational Standards
Plant supervisors treat soda ash with reasonable caution. Despite being less harsh than sodium hydroxide, direct contact leads to eye and skin irritation. Good ventilation keeps dust out of the lungs during bagging or silo loading. Workers gear up with goggles and gloves to handle spills or cleaning. The U.S. Occupational Safety and Health Administration classifies it at low risk, though it assigns exposure limits to airborne dust. Fire response teams get soda ash for some chemical fire scenarios because it can smother certain fire types. Tight storage standards prevent accidental moisture pickup, ensuring the material flows properly through industrial hoppers and prevents unexpected clumping.
Application Area
Modern manufacturing runs on soda ash, from float glass in skyscrapers to pharma-grade sodium bicarbonate found in medicine cabinets. Water treatment plants rely on its alkalinity boost, managing pH and softening municipal supplies. The steel industry melts it into furnace slags, separating impurities. Textile dyeing depends on stable pH—a dose of soda ash gets colors to take evenly to cotton fibers and sets them for long-term resilience. Even artists rely on it, mixing glazes for pottery or helping prepare lithography stones. Environmental engineers call on soda ash to neutralize acid spills or treat flue gases, scrubbing out sulfur and heavy metals from industrial stacks.
Research & Development
Researchers watch soda ash markets for signs of change, driving process upgrades and sustainability initiatives. University labs and chemical companies explore new catalysts to lower energy needs for synthetic production. Raw materials face scrutiny—teams study other alkaline sources or alternative brine streams to dodge supply shocks. Environmental impact remains central, pressing the industry toward closed-loop water systems and reduced waste output. Some startups develop methods to extract soda ash from previously untapped mineral deposits or industrial by-products, expanding the supply base worldwide. Digital monitoring systems now track purity, flow, and end-use traceability, helping both safety compliance and product quality.
Toxicity Research
Routine safety checks reveal that soda ash, in controlled doses, registers low toxicity for humans. Animal studies find only mild effects at high exposure. Extended inhalation of dust presents respiratory risk, particularly for workers in bulk handling or packaging. Accidental consumption in large quantities brings about digestive upset but rarely severe poisoning. Environmental investigators look at aquatic toxicity and find, at normal effluent concentrations, little persistent risk—although large spills threaten local pH and aquatic life. Each study reminds industrial users that risk comes mostly from how soda ash is handled, not from the chemical itself.
Future Prospects
Demand for soda ash rides on megatrends like urbanization and clean energy. The world’s shift toward solar power presses glass producers for more panel production, ramping up soda ash orders. Water stress and pollution increase the drive for better treatment plants, feeding back into chemical sales. Digital monitoring, smarter storage, and greener production get attention in boardrooms, pushing the sector toward higher efficiency. Startups test new chemistries to cut energy use and shrink carbon footprint. As industry worries about resource security and climate change, innovation pushes soda ash beyond its old role—what was once just a raw material turns into a platform for new industrial solutions.
The Roots of Soda Ash in Daily Life
Soda ash, known to chemists as sodium carbonate, connects quietly to daily routines. The stuff most folks never think about serves as a key ingredient for so many things. I remember my grandfather, a factory worker, who always came home with stories about glass production and the powders he’d handle during long shifts. Turns out, soda ash played a big part in those stories, and it still does today.
A Glassy Business
Glass doesn’t magically appear from sand. The process starts with raw materials, and soda ash stands out as a major player. It helps lower the melting point of silica so manufacturers can shape windows, bottles, and even windshields without using extreme temperatures. This step cuts down energy use and bills for factories, which matters for both business owners and anyone worried about climate change. According to the International Energy Agency, glass production swallows around 2% of global industrial energy each year. Making that process more efficient helps everyone in the long run.
The Other Side: Clean Clothes, Better Water
Washing clothes isn’t just about getting out ketchup stains. Hard water, with its dissolved minerals, makes detergents less effective and leaves grime behind. Soda ash fixes this problem by "softening" the water, letting soaps work properly. My mother always kept a small box of washing soda (just another name for soda ash) on the laundry shelf. It wasn’t luxury—just a simple way to make the wash more reliable. Municipal water treatment plants depend on the same principle, using soda ash to balance pH and reduce corrosive minerals. This helps keep pipes from breaking down and ensures that homes and businesses have water that tastes right and won’t wreck plumbing.
In Factories and Fields
Industries go beyond glass and cleaning. Take paper production: manufacturers use soda ash in pulping wood and removing ink so newspapers can become something fresh again. The textile world, where bright dyes and lasting color rely on a well-tuned chemical mix, also leans on soda ash. Farmers often use it to tweak soil vigor, controlling acidity so crops grow better. In my hometown, local gardeners added a handful to the earth around tomato plants, swearing it improved taste and yield.
Safety and Sustainability Challenges
Soda ash remains mostly safe in routine use, but production methods create questions about the environment. Many plants still extract soda ash from trona ore or synthesize it using salt and limestone, which spits out carbon emissions. Groups like the Natural Resources Defense Council point to these impacts as an opportunity for cleaner innovation. Solar-powered extraction and recycling spent chemicals look promising but require real investment from both private companies and governments.
The Path Forward
Worrying about what goes into a product can feel dizzying. Soda ash proves that common ingredients touch many corners of modern life, from clear glass windows to safe running water. Putting money behind research and shifting to greener production models can create cleaner outcomes for everyone. This isn’t about eliminating useful materials but pushing for smarter ways to make and use them without dumping costs on the next generation.
Understanding Soda Ash
In the world of basic chemicals, soda ash holds a familiar spot. Chemically known as sodium carbonate, its formula is Na2CO3. This straightforward combination of sodium, carbon, and oxygen might look ordinary on the page, but its impact stretches across daily life and major industries. Many people don’t realize just how often their surroundings depend on this one compound.
The Big Uses: Glass, Detergents, and Water
If you’ve looked through a window or used a drinking glass today, you’ve already crossed paths with soda ash. Glassmakers rely on sodium carbonate to lower the melting point of sand, making glass more easily shaped and more durable. It doesn’t just stop in glass factories. The laundry detergent in homes around the world uses sodium carbonate as a builder. It helps remove magnesium and calcium ions, softening water and boosting cleaning power. Without it, detergents lose efficiency and leave behind more residue. Municipal water treatment plants count on soda ash to balance acidic water, protecting pipes and supporting public health. These real-world examples show how sodium carbonate’s simple formula finds a role in systems that rarely make headlines.
Environmental Effects and Production Challenges
Soda ash can come from both natural and synthetic sources. Trona ore mining in places like Wyoming gives the United States a reliable supply. Most other countries use the Solvay process, a synthetic route that mixes sodium chloride, ammonia, and limestone. Every approach brings its own environmental pressures. Solvay plants have to manage waste brine and ammonia emissions, often requiring expensive treatment steps. Trona mining changes local landscapes and creates waste rock piles. As energy prices swing and environmental regulations tighten, soda ash plants feel the squeeze to adopt cleaner processes or better recycling.
Addressing the Downsides
Industry can’t ditch soda ash, but the way it’s produced can evolve. Researchers and manufacturers have their eyes on cutting down waste and reusing resources. Some places experiment with closed-loop systems that capture and recycle the ammonia from the Solvay process, trimming both costs and emissions. Technologies that use renewable energy for mining or conversion provide a real shot at shrinking the carbon footprint, though costs limit wide adoption. If soda ash makers keep pushing these changes, both industry and the planet stand a better chance of seeing long-term benefits.
Importance in Everyday Life
Few people talk about sodium carbonate at dinner, but it helps make tap water safer, cleans dishes, and keeps windows clear. Regulating pH in everything from swimming pools to food processing, Na2CO3 serves as a problem-solver for many industries. In my childhood, a busted dishwasher stopped working right after switching detergents. It took a local technician five minutes to point at the ingredient list—no sodium carbonate. Once we made the switch, the hard water deposits vanished. These unglamorous behind-the-scenes stories underline why such a basic chemical earns respect from professionals who keep the modern world ticking.
Path Forward for Soda Ash
Sodium carbonate underlies key infrastructure, products, and services—not through flashy technology, but through reliability. Scrutiny on production methods has led the industry to rethink waste, water usage, and emissions. Future solutions rest in collaboration, solid research, and drawing on both historical methods and emerging trends. Whether it’s new recycling methods or using renewable energy, chemistry’s building blocks only become more valuable when made responsibly. Na2CO3 might not spark excitement at first glance, yet its impact speaks for itself.
The Names Might Confuse, But the Uses Sure Don’t
Walk into a grocery store and the questions start. So many powders, so many names. Soda ash and baking soda share part of their names, but you don’t want to swap one for the other in the kitchen or anywhere else. I grew up in a household where both had their place—one on the laundry shelf, the other tucked among the flour and spices. Sometimes the chemistry can be plain. Soda ash is sodium carbonate. Baking soda is sodium bicarbonate. Both carry sodium, and both swing alkali, but their personalities and uses barely overlap.
Where the Real World Comes In
Laundry day showed me why soda ash matters. Add a scoop and suddenly hard water isn’t so tough. Fabrics lose their dullness, and the detergent almost seems to sing. Folks in cities with mineral-heavy tap water swear by it. Soda ash pulls those hard water minerals out, softening up the whole process. Most people won’t touch soda ash in the kitchen. It packs a stronger punch and jumps the pH higher than baking soda ever could. Tossing it into a cake recipe would ruin dessert and maybe your pans, too.
Baking soda earned its respect a long time ago. Open a box and breads come out fluffy, banana breads rise, and cookies get just enough lift. Pop it in the fridge, and unwanted smells don’t stand a chance. Growing up, my grandma used it for bug bites, cleaning silver, and brushing teeth in a pinch. Safe for most daily needs, it’s a tool that’s earned its place.
Safety and Health Take Center Stage
Mixing up soda ash and baking soda isn’t just a mistake—it could pose a real health risk. Soda ash can irritate the skin and eyes, and gulping it won’t sit well with the stomach. Factories rely on it for making glass, cleaning up wastewater, or helping with dyeing textiles. It isn’t made for snack time or home remedies. Baking soda, on the other hand, checks the safety box for kitchen use and home cleaning. Even so, too much in recipes or as a supplement can also bring discomfort, so moderation always matters.
Communication Breakdowns Happen
With stores labeling chemicals in ways that sound almost alike, accidents can follow. Some stores even put the two right next to each other. The best fix? Make packaging differences loud and clear, so nobody goes home with the wrong box for their project. Education starts with better labeling in stores and clearer advice online. It helps to remember that soda ash always stays out of the pantry.
Looking at Solutions and Building Better Habits
Community workshops have helped people I know learn about safe use. Parents, teachers, or even scout leaders can show the next generation these differences early on. Online searches should point to reputable sources that highlight health, science, and clear instructions. Chemical names may trip people up, but practical use and safety instructions go a long way in preventing mistakes.
Labels, honest education, and learning the science in the small moments—these steps can help make sure the only thing rising in the kitchen is the dough, not unnecessary confusion.
The Story Behind Soda Ash
Soda ash, or sodium carbonate, might sound like something exotic, but most households have used it at some point, especially if there's glassware around. The more you learn about it, the more it seems tied to countless everyday objects and industries. Think glass jars, detergents, even the chemicals used to clean wastewater.
The Way Soda Ash Comes to Life
There’s two main ways soda ash shows up in the world: natural and synthetic. In a few special parts of the earth, like Green River, Wyoming, the ground holds massive stores of “trona” ore. This mineral gets dug up in dusty, dangerous mines, hauled out, washed, and then heated. That’s where the chemistry hits — trona just needs some heat and a few steps, and out comes soda ash. Simple in theory, but underneath it all, there’s generations of mining expertise and communities that rely on these jobs. The United States stands out as a major producer, shipping millions of tons each year to markets across the globe.
Other countries, without luck on the geology front, turn to chemistry. The Solvay Process, named after a Belgian engineer from the 1800s, remains the workhorse for most of the synthetic soda ash out there. This method blends salt, limestone, ammonia, and water. It’s a big swirling mess with bubbling tanks that spit out sodium carbonate and leave behind mountains of byproducts. Ammonia costs a lot, so plants recycle it, but the limestone ends up as calcium chloride waste. The Solvay Process allowed countries like China and much of Europe to produce soda ash even without trona fields underground.
Why This Matters
You don’t hear about soda ash scandals in the news, but its supply and cost sit at the root of things we use every day. The glass in your windows, the detergent that cleans your kid’s soccer uniform, even the chemicals that buffer swimming pools — all of that leans on soda ash. Schools and water utilities use sodium carbonate to keep their water drinkable.
Here's where things get complicated. The Solvay Process, as robust as it is, creates large amounts of waste. Calcium chloride piles up and needs disposal, sometimes impacting land and water nearby. There’s also a significant amount of energy needed to keep the process running, so plants push out their share of carbon emissions. In contrast, mining trona seems straightforward, but large-scale extraction can leave scars on the local landscape and stress aquifers if water isn’t managed carefully.
Looking Toward Smarter Production
Modern chemists and engineers keep looking for cleaner, leaner ways. Some research tackles recycling soda ash from old glass or exploring ways to use waste from plant operations as input for other industries. There’s hope for using renewable energy in soda ash plants, which could lower emissions, especially in countries where solar and wind are growing fast.
Consumers usually don’t notice these shifts, but they matter. Any new breakthrough that keeps soda ash affordable, reliable, and easier on the environment trickles down to a lot of products and services. From school cafeterias to electronics factories, the right balance in soda ash production reaches further than most people guess.
What Soda Ash Means for Daily Work
Soda ash, or sodium carbonate, shows up anywhere glass, detergents, or papermaking get done. I’ve spent time in chemical warehouses and have seen plenty of bags marked “soda ash dense.” Folks moving those bags handled them with care, and for good reason. This white, powdery material doesn’t look scary. Pour some in your hand, though, and soon you’ll feel the dry, gritty touch—the kind that seems to suck the moisture right from your skin. My gloves always came on fast after the first time.
Is It Safe? People Matter Most
Much of the talk around soda ash focuses on its safety, especially since it carries a reputation as a basic (alkaline) compound. It doesn’t burn like acid, but soda ash can still cause skin, nose, and lung irritation. No one wants red, itchy hands or coughing fits after sweeping up a spill. I saw coworkers with red eyes after they ignored dust masks. Once, a guy dusted off his hands on his jeans and ended up with cracked skin by lunchtime. It stings if it gets into cuts. The dust bothers folks with respiratory issues like asthma. This is less about “severity” and more about respecting the risk. In my experience, most accidents happen when someone thinks small exposures don’t count.
Basic Science, Real World Consequences
If soda ash mixes with sweat, it can raise the local pH and disrupt your skin’s barrier. A CDC chemical safety summary notes that irritation builds over time. Factory floors get slippery if too much soda ash spills near a drain, and the dust is sneaky—it can settle on workbenches, tool handles, even shoes. If you rub your eye, trouble follows. Sometimes, folks skip goggles because soda ash isn’t as notorious as bleach or ammonia. The lesson always comes quickly: stinging eyes and a run to the eyewash station.
Facts Over Fear
Soda ash’s natural origin doesn’t make it harmless. It’s listed on its SDS (Safety Data Sheet) as a moderate irritant. The EPA and OSHA both lay out rules for its handling in industry. No one should eat or drink near soda ash, and always wash up before grabbing lunch. Over the years, I noticed companies that enforced glove and mask rules had fewer accidents. Eye protection—plain safety glasses—always made a difference when dumping soda ash into mixing tanks. Someone walking by could catch dust in their eyes from as much as a couple of feet away, especially if fans are running.
Getting It Right: Protect Yourself, Protect Others
Solutions aren’t complicated: gloves, goggles, dust masks. One old-timer I worked with kept a bottle of moisturizer at his locker to fight off dry skin after handling soda ash. Cleaning up spills quickly cuts down on dust in the air. Simple safety meetings every month kept the cautions fresh. The best workplaces invest in good housekeeping and clear labels. It comes down to respect: soda ash may not seem dangerous at first glance, but treating it casually isn’t smart. Folks who take small steps—personal protective equipment, washing up, paying attention—see fewer injuries and smoother days at work.
| Names | |
| Preferred IUPAC name | sodium carbonate |
| Other names |
Sodium carbonate
Washing soda Soda crystals Soda Solvay |
| Pronunciation | /ˈsoʊ.də ˌæʃ/ |
| Preferred IUPAC name | Sodium carbonate |
| Other names |
Sodium carbonate
Washing soda Soda crystals Soda Solvay |
| Pronunciation | /ˈsəʊdə æʃ/ |
| Identifiers | |
| CAS Number | 497-19-8 |
| Beilstein Reference | BCFWKTZSWYCVQA-UHFFFAOYSA-N |
| ChEBI | CHEBI:29377 |
| ChEMBL | CHEMBL1201736 |
| ChemSpider | 39124 |
| DrugBank | DB11379 |
| ECHA InfoCard | InChIKey=NXROPCSLZHCGMF-UHFFFAOYSA-L |
| EC Number | 231-869-2 |
| Gmelin Reference | 37924 |
| KEGG | C00638 |
| MeSH | D013001 |
| PubChem CID | 8622 |
| RTECS number | VZ4050000 |
| UNII | V9VHA7640Z |
| UN number | UN1823 |
| CAS Number | 497-19-8 |
| Beilstein Reference | 1713888 |
| ChEBI | CHEBI:29377 |
| ChEMBL | CHEMBL1201735 |
| ChemSpider | 68209 |
| DrugBank | DB09488 |
| ECHA InfoCard | 13abe3e1-7b85-4d52-bd42-7e8352b83c3f |
| EC Number | 207-838-8 |
| Gmelin Reference | 636 |
| KEGG | C06221 |
| MeSH | D013002 |
| PubChem CID | 8622 |
| RTECS number | VZ4050000 |
| UNII | 6UY4TJ619V |
| UN number | UN1823 |
| Properties | |
| Chemical formula | Na2CO3 |
| Molar mass | 105.99 g/mol |
| Appearance | White, odorless, granular or powdered solid |
| Odor | Odorless |
| Density | 0.86 g/cm³ |
| Solubility in water | Moderately soluble |
| log P | 3.7 |
| Vapor pressure | Negligible |
| Acidity (pKa) | 11.6 |
| Basicity (pKb) | 2.01 |
| Magnetic susceptibility (χ) | Diamagnetic |
| Refractive index (nD) | 1.377 |
| Viscosity | 1.05 mPa·s (20°C, 20% solution) |
| Dipole moment | 0 Debye |
| Chemical formula | Na2CO3 |
| Molar mass | 105.99 g/mol |
| Appearance | White, odorless, granular or powdered solid |
| Odor | Odorless |
| Density | 0.86 g/cm³ |
| Solubility in water | Decahydrate: 215 g/L (20 °C) |
| log P | 1.67 |
| Vapor pressure | Negligible |
| Acidity (pKa) | 11.6 |
| Basicity (pKb) | 11.62 |
| Magnetic susceptibility (χ) | 'Magnetic susceptibility (χ) of Soda Ash: -73 × 10⁻⁶ cm³/mol' |
| Refractive index (nD) | 1.378 |
| Dipole moment | 0 Debye |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 269.8 J·mol⁻¹·K⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | -1130.9 kJ/mol |
| Std molar entropy (S⦵298) | 269.8 J·mol⁻¹·K⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | -1130 kJ/mol |
| Std enthalpy of combustion (ΔcH⦵298) | -1131 kJ/mol |
| Pharmacology | |
| ATC code | V03AB47 |
| ATC code | V03AB47 |
| Hazards | |
| Main hazards | Causes serious eye irritation. Causes mild skin irritation. May cause respiratory irritation. |
| GHS labelling | GHS07, GHS08 |
| Pictograms | GHS07, GHS08 |
| Signal word | Warning |
| Hazard statements | Causes serious eye irritation. |
| Precautionary statements | P264, P280, P301+P312, P305+P351+P338, P330, P337+P313 |
| Explosive limits | Non-explosive |
| Lethal dose or concentration | LD50 (Oral, rat): 4090 mg/kg |
| LD50 (median dose) | LD50 (median dose): 4090 mg/kg (oral, rat) |
| NIOSH | SDC |
| PEL (Permissible) | 15 mg/m3 |
| REL (Recommended) | 15 mg/Nm3 |
| Main hazards | May cause irritation to eyes, skin, and respiratory system |
| GHS labelling | GHS07, GHS Eye Irrit. 2, H319 |
| Pictograms | GHS07, GHS08 |
| Signal word | Warning |
| Hazard statements | Causes serious eye irritation. |
| Precautionary statements | P264, P270, P280, P301+P312, P330, P305+P351+P338, P337+P313, P501 |
| NFPA 704 (fire diamond) | 1-0-2 |
| Lethal dose or concentration | LD50 (oral, rat): 4090 mg/kg |
| LD50 (median dose) | LD50 (median dose): 4,090 mg/kg (oral, rat) |
| NIOSH | VZ0950000 |
| PEL (Permissible) | 15 mg/m3 |
| REL (Recommended) | 260-270 g/l |
| IDLH (Immediate danger) | Not listed |
| Related compounds | |
| Related compounds |
Sodium bicarbonate
Sodium hydroxide Potassium carbonate |
| Related compounds |
Sodium bicarbonate
Sodium hydroxide Calcium carbonate Potassium carbonate |