Research into sulfonic acids gained momentum during the industrial century, as factories pushed boundaries on plastics, detergents, and organic synthesis. Chemists hunting for reliable ion-exchange agents caught onto compounds like 2-propanesulfonic acid sodium saltmonohydrate for its water solubility and ionic behavior. By the 1970s, its stability and salt form attracted scientists invested in catalysis and electroplating. EU and US chemical directories from the 1980s began listing it among core lab reagents. Global industry databases now point to production hubs in Europe, North America, and Southeast Asia, each modifying specs a bit for local needs, though the backbone process—neutralizing 2-propanesulfonic acid with sodium hydroxide—barely changed.
2-Propanesulfonic acid sodium saltmonohydrate shows up as a crystalline, white to off-white powder, picking up moisture from the air due to its hygroscopic nature. Its strong sulfonic acid group draws in water molecules, which enhances conductivity in solution—a feature that electronics and plating operators value. Shelf-life depends on storage: dry, sealed containers keep it stable for months. In practical lab settings, the compound dissolves readily in water but holds its ground in most organic solvents. Chemically, it keeps its integrity well under normal temperatures and pressures. Handling bulk quantities highlights its low volatility, easing transport and use out in the field or at pilot scale.
Labeling speaks to people who operate reactors, run quality checks, or manage warehouse stocks. Molecular formula (C3H7NaO3S·H2O), batch numbers, gross and net weights, manufacturer location, and purity levels (often over 98%) always make the cut. Safety handling icons flag the basic risks—moisture sensitivity, dust inhalation, skin or eye irritation. Analytical reports usually confirm sodium, sulfur, and total moisture content, along with trace heavy metal checks. Every sack or bottle follows clear local and global transport labels, matching regulations like UN GHS or the US OSHA guidelines.
Chemists start with 2-propanesulfonic acid, a liquid, and add sodium hydroxide solution while stirring and cooling the reaction vessel. After neutralization, water is removed under reduced pressure, and the intermediate solution gets cooled further so the salt crystallizes out. A rinse with ethanol or acetone removes leftover reactants. The final product dries in a vacuum oven, measured for solid content, cleaned of dust or fine residues, and packed tightly. Small batch prep uses standard lab flasks, but major chemical producers scale up using continuous reactors, temperature and pH monitors, and automated filtration.
Known for its sulfonic group, this sodium salt acts as an ionic anchor—sticking onto charged surfaces, boosting conductivity, or swapping out cations in ion-exchange beds. In polymer chemistry, it integrates as a building block or crosslinker, thanks to the reactive sulfonic acid leaving group. Reacting it with stronger acids regenerates the parent acid, and pairing with transition metal salts makes new complexes for catalyst testing. In aqueous solutions, the compound tends to stay stable, but under high heat or in the presence of strong oxidizers, it may break down to basic sulfates and organic byproducts. Chemists have gradually tweaked the hydration state or linked it to other chemical groups looking for more robust or tailored performance.
Depending on supplier, literature, or country of origin, you’ll run into synonyms like sodium isopropylsulfonate monohydrate, sodium 2-propanesulfonate monohydrate, or 2-hydroxypropane-1-sulfonic acid sodium salt. European Safety Data Sheets sometimes call it EINECS 237-330-3, while some importing documents list it as Propanesulfonic acid, 2-, sodium salt, monohydrate. These labels show up in product catalogs, customs paperwork, and research journals alike.
Experience in the lab reminds me that workplace safety means more than just goggles. This material’s fine powder can waft up, so most users stick with dust masks and gloves. Spills clean up easily with dry cloth or adsorption pads. Storage demands dry, cool areas, lined with silica gel packets or similar desiccants. Real-life safety audits watch for slip risks if wet, electrical shorts (since it improves water’s conductivity), and overexposure to skin. Regulatory agencies, including REACH and OSHA, track this chemical for safe handling and labeling. Updated SDS sheets go out with every shipment, making sure no step gets skipped from package to workplace.
The most energetic demand comes from electroplating rooms, battery electrolyte concoctions, polymer synthesis plants, and fine chemical labs. Its conductivity brings sharper results to non-aqueous electrolytes and supports polymer membrane manufacture for fuel cells. Some water treatment facilities plug it into ion exchange beds to grab onto heavy metals or organics. A few specialty detergent makers and cosmetics brands lean on it as an anti-static or pH-supporting additive. Universities and chemical development outfits quietly use it in research aisles, chasing new catalytic, imaging, or stabilization effects.
R&D labs focused on energy sources dig deep into 2-propanesulfonic acid sodium saltmonohydrate’s role in proton exchange membranes, which power hydrogen fuel cells. Some researchers eye how it interacts with bio-based polymers, expecting greener, biodegradable options. In the pharmaceutical world, research explores using it as a counter-ion to stabilize active compounds or to bring out specific isomeric structures in synthesis. Dissertations keep tracking modifications, mixing it with other sulfonates or chaining it into novel oligomers. Companies patent new derivatives, chasing promising antistatic additives for electronics or better dispersants for ultrafine pigments and dyes.
Toxicology reports published through EU and US agencies categorize the substance as low toxicity under regular use scenarios. Acute oral and inhalation trials in rodents point to modest irritation at worst, provided dust inhalation is limited. Chronic exposure studies remain thin, but proper PPE controls cut down daily workplace contact. Environmental breakdown, measured in simulated river and soil tests, shows the sodium salt dissolves quickly, with low bioaccumulation risks. Wastewater treatment plants do a decent job filtering out the residual sulfonic species, so environmental persistence scores pretty low compared to some synthetic analogs.
Global uptick in sustainable manufacturing, interest in cleaner fuels, and growing regulatory checks on harsh chemicals open more space for functional, lower-toxicity salts like this one. Companies working on battery development, green chemicals, and new coatings regularly screen it for stability and performance. Policy shifts in Asia and the EU nudge industries toward reagents that are easy to handle and dispose of, helping this sodium salt keep its seat at the table. Better hydration control, fine-tuned purity, and tailored particle size all count as next-gen goals for industrial producers. As university and startup grant funding shifts to renewable and waste-limiting technologies, 2-propanesulfonic acid sodium saltmonohydrate will likely play a bigger role in the years ahead.
Walk into any lab and you'll find a shelf packed with chemical salts. It’s not just scientists who use these compounds—industries around the globe turn to 2-Propanesulfonic Acid Sodium Salt Monohydrate as a tool in their processes. Its role reaches far beyond the textbook.
Batteries drive modern life, powering phones, electric cars, and even homes. 2-Propanesulfonic Acid Sodium Salt Monohydrate helps researchers push battery technology forward. Its stable ionic form allows it to serve as an electrolyte additive, improving ionic conductivity. This translates to batteries that last longer and perform better. Years back, work in electrochemistry labs showed that this compound keeps batteries healthier over countless charge cycles—critical for anyone who hates dead devices.
Electroplating isn’t just for shiny jewelry or fancy car parts. Medical devices, aerospace parts, and electronics all call for smooth coatings that won’t peel. The sulfonic acid part of this molecule grabs metal ions and helps them lay down in neat, reliable layers. Industrial teams use 2-Propanesulfonic Acid Sodium Salt Monohydrate to get those reliable coatings, which increases product lifespan and reduces replacement costs.
Sulfonic acids and their salts often get chosen over some older chemicals because they break down more predictably. Factory teams look for ingredients that won’t cause headaches down the waste stream. This sodium salt steps up with its good solubility in water, cutting out the need for more toxic or abrasive agents in cleaning solutions or catalysts.
Water treatment plants have their own challenges. Toxins and metals threaten water supplies each year. The sodium salt of 2-Propanesulfonic acid gets used in select ion-exchange resins—these materials pull out unwanted metals and leave safe water behind. As droughts and contamination events increase, any tech that claws back clean water earns a closer look.
Traditional acids often corrode equipment or leave behind tough residues. Working with 2-Propanesulfonic Acid Sodium Salt Monohydrate, technicians don’t have to swap out pipes or tanks as often. Its milder touch means lower repair bills, less downtime, and fewer workplace injuries.
Many specialty chemical firms rely on evidence-based approaches to screen additives for toxic effects. Data indicates this sodium salt gives off fewer fumes and doesn't trigger harsh reactions with many typical industrial chemicals. Getting these kinds of safety records from public databases reassures companies investing in worker protection and environmental compliance.
Specialty chemicals keep modern industries competitive. Universities, corporate labs, and startups all use data-driven approaches to vet new formulations. 2-Propanesulfonic Acid Sodium Salt Monohydrate often appears in the mix as a starting point. Its chemistry offers just enough flexibility to adapt across fields, yet its safety profile checks critical boxes for regulators and the public.
Energy storage, wastewater recovery, and surface engineering still wrestle with challenges in cost, durability, and sustainability. By combining long-term research with hands-on results, chemical makers and engineers shape tools like this sodium salt for next-generation uses. Publicly available studies and peer-reviewed results keep the process on track, rooting claims in transparent, measurable outcomes.
Names in chemistry often carry more weight than meets the eye. Take 2-Propanesulfonic Acid Sodium Salt Monohydrate as an example. Shifting through the jargon, we land on a molecule where a sodium atom replaces the hydrogen in the sulfonic acid group, and water joins the mix as a monohydrate. The backbone—propane—links the pieces together. This isn’t just about stringing together letters and numbers; each part of that formula tells you about how the atoms interact, and what can happen if you change something even slightly.
Getting hands-on in a lab gives you respect for why formulas need to be right. Chemists keep an eye out not just for the main structure but for the guest molecules, like water, that tag along. In 2-Propanesulfonic Acid Sodium Salt Monohydrate, the base molecule is C3H8O3SNa·H2O. Each part plays out in reactions, in solubility, and even in how you need to store the compound. Miss the water, and you’re working with a different beast entirely.
Sodium salts like this one have walked into everything from water treatment to research benches. The inclusion of water, making it a monohydrate, can shift how the substance dissolves, reacts, and even how it’s weighed for an experiment. During one project, switching between anhydrous and monohydrate forms threw off the doses and the reaction outcomes, because of the water tucked into every molecule.
Chemistry in real settings doesn’t play out like neat textbook equations. Professionals keep safety sheets nearby because one misplaced measure can lead to unexpected results. This compound, with sodium as a counterion and water as a stabilizer, ends up safer to handle and easier to store than its acid form; less volatility means fewer harsh fumes, and the powdery nature of the salt is much more predictable. Misidentifying the formula could mean a misstep that puts people at risk or throws off months of data.
Manufacturers list formulas in technical documents to give labs a level ground. C3H8O3SNa·H2O tells you what you’re genuinely working with. I’ve encountered ordering mistakes—in one case, a hydrous salt delivered in place of an anhydrous form—where calculations and safety sheets meant for one version failed for the other. Accurate labeling and formula knowledge build trust.
Miscommunication isn’t rare in sourcing chemicals. Sometimes, a rushed label or a skipped hydration state leads a researcher, teacher, or technician to confusion. Suppliers can fix this by putting hydration information in bold on the packaging and digital catalogues. Software used in labs can flag mismatches or missing hydration states, helping everyone double-check before use.
Education plays a role too. Students and early-career chemists need solid training to read beyond just the name, picking up the details hidden in chemical formulas. Small changes—clearer labels, reinforced education, collaborative communication between suppliers and labs—help everyone avoid costly or dangerous mistakes, and create results others can trust.
Anybody working with chemicals in a lab or at an industrial site learns pretty quickly to pay close attention to the safety data sheet. Some chemicals scream danger right away—like nitric acid or benzene—while others, such as 2-Propanesulfonic acid sodium saltmonohydrate, look like just another tongue-twister on a label. But long chemical names can hide risks, too.
The big question: is this one of those chemicals that might burn your skin, make your eyes sting, or worse, end up circulating through the bloodstream causing subtle, long-term harm? I’ve handled similar sulfonic acids and their sodium salts before. Most of these compounds show up as white, crystalline solids, dissolving well in water, and usually don’t let off any alarming fumes during everyday handling. But there’s a catch—just because a product doesn’t feel dangerous on the skin doesn’t mean it’s completely safe.
Knowledge and experience both point to a few clear facts. Direct, concentrated contact can irritate the skin or eyes. Swallowing a fair amount causes stomach irritation. Dust from the powder could get into the air and irritate the lungs if someone is careless about handling or ventilation. Even if a compound seems benign, repeated careless exposure in poorly ventilated rooms or lackluster cleanup efforts can lead to chronic symptoms, or at least enough discomfort to sideline a worker for the day.
Much of the concern comes from a lack of thorough testing in humans. Regulatory agencies, whether in Europe, North America, or Asia, look for evidence before classifying a chemical as a “known hazard.” This chemical shows up now and then in buffer solutions or even in some specialty chemical processes. Publicly available data doesn’t connect it strongly to cancer, gene mutation, or reproductive problems. But documented research on low-level, long-term exposure stays thin. That’s a red flag for anyone thinking about skipping gloves or eye protection.
After years in the lab, I’ve seen good habits save a lot of misery. A chemical like this should always be stored out of reach of children, away from food, and kept tightly sealed. Workers should handle it only with gloves and, if dust is flying around, a decent set of goggles and a dust mask. Spills get swept up with care—never dry, always using a damp method to keep dust out of the air.
It helps to remember that an MSDS (Material Safety Data Sheet) is more than just a formality. These sheets call out flashpoints, toxicity, and what to do if something goes wrong. For 2-Propanesulfonic acid sodium saltmonohydrate, the toxicity isn’t on the same level as many caustic acids or strong bases, but that shouldn’t lull anyone into complacency. Respecting the potential for irritation—or unforeseen long-term effects—is important every day and for every shift.
People sometimes view chemical safety as just another box to tick off in compliance audits or as a layer of hassle added by safety officers. The truth is, a single incident involving skin, eyes, or a missed inhalation risk proves the real value of these simple steps. They help everyone go home in the same health as they arrived. Until more testing clears up the picture, it pays to treat this chemical with the same respect due to any lab-grade material. Regular training, updated chemicals logs, and easy access to eye-wash stations come from experience, not paranoia. Safety works because people make the effort—one glove, one pair of goggles, one closed container at a time.
Everyone wants to believe that storage is just about lining up bottles in a clean cabinet. In my experience, a little more thought goes a long way, especially with chemicals like 2-Propanesulfonic Acid Sodium Saltmonohydrate. A misstep can mean damage to property, contaminated product, or a nightmarish clean-up. The real challenge is not just about following a checklist, but understanding why each step matters.
This is a moisture-sensitive substance. Keeping it in a tightly sealed container changes everything. I’ve seen samples clump up and become nearly unusable after sucking in water from the air. A sealed high-density polyethylene or glass container limits this risk. I always double-check for cracked lids or bottles—leaving that unchecked could cost a lab thousands down the road. Reputable suppliers always emphasize this point, and with good reason: uncontrolled exposure ruins purity and skews experimental results.
Room temperature and low humidity keep this compound stable. Heat speeds up unwanted degradation, so don’t think a sunny windowsill cuts it as storage space. I had colleagues forget about sunlight exposure; the end result was product breakdown and a ruined experiment. A dry storage area, ideally in a desiccator if you can swing it, cuts down on moisture uptake. Darkness slows the breakdown, too. Even basic storage guidelines from chemical safety agencies stress the value of a cool, dark spot, well away from direct heat sources.
Chemicals can react with stuff you didn’t expect. I’ve seen workshops that lumped in everything together—a recipe for disaster. This compound should live far apart from strong acids and oxidizers. Mixing storage zones might sound convenient, but it isn’t worth risking cross-reaction. If an acid from a neighboring bottle leaks, you might face a serious hazard and more paperwork than anyone wants.
Labels seem boring until you realize someone else will grab what you stored months ago. Every container needs its full name, concentration if it’s a solution, plus the date received and opened. Old material loses reliability. Based on my own history, keeping an eye on supply dates keeps a lab running smoothly—no one gets stuck with outdated stock.
Even careful storage can’t cover every risk. An absorbent spill kit on hand saves headaches if an accident happens. Reports from chemical safety audits often point out how fast access to cleanup gear limits larger losses. Also, check a safety data sheet before handling—this matters just as much as picking the right shelf.
It’s easy to get lost in technical details, but basic steps go a long way: inspect containers regularly, maintain a clean space, rotate and label stock, keep chemicals apart, limit moisture, keep temperatures low, and respond to problems with the right tools. In my years of working with lab chemicals, direct attention to these details has saved more time, money, and hassle than any “bigger picture” solution. Remember, safe storage isn’t just a guideline—it's the backbone of smooth lab operations.
2-Propanesulfonic acid sodium salt monohydrate lands on a lab bench as a white crystalline powder. Its texture often reminds me of common table salt, though the resemblance means nothing in terms of taste or use. The compound dissolves in water easily, producing a clear solution with no stubborn clumps. Chemists, including myself, appreciate this behavior. Solutions stay homogeneous, so measurements tend to be reliable, which smooths out day-to-day lab work.
The material’s melting point rides fairly high, staying solid up to about 250°C before it starts to break down. This trait makes it useful in processes that bring a fair amount of heat. I’ve seen labs choose it for its stability alone, especially in places where fluctuations in temperature crop up throughout a process. Labs don’t need to fret about it decomposing before their work is finished.
As someone who’s worked with a range of sodium salts, I can say this monohydrate does not have much odor. This matters more than it might appear. A bench topped with all sorts of chemicals quickly becomes a headache factory when volatility runs high. Compounds like this let you focus without distraction. You will see no fumes when you open the bottle, either, so working around it doesn’t require special ventilation.
That crystal structure tells a story beyond appearance. The word “monohydrate” means each molecule comes with a single water molecule stuck to it. This makes the salt a little heavier for the same chemical punch compared to its anhydrous cousin. In lab math, this matters: getting the ratios right means you need to factor in that water, or reactions will drift out of spec. Some folks overlook this until their results edge toward the odd or unexpected.
Purity marks another key property. 2-Propanesulfonic acid sodium salt monohydrate usually shows up above 98% pure. Tiny impurities, though, can shift how it works in a reaction or change the pH of your solution. I’ve seen spoiled batches cause more headaches than anyone wants. Storing it in tightly sealed containers keeps it dry and steady. If you let humidity creep in, expect the powder to cake or clump, toughening up future measurements and possibly shifting composition over time.
Stability links right in. This compound stands up well to air and light. No need for amber bottles or shielded cabinets. Dry, cool conditions work just fine. This predictability makes managing inventory simple, and it means the stuff at the back of a shelf works as well as the freshly opened bag.
Across electroplating, pharmaceuticals, and analytical chemistry, people rely on solid physical properties. The predictable melting point and easy solubility mean trouble rarely crops up at the application stage. If waste gets flushed down a drain, you count on its high solubility—though this brings up environmental concerns, since sodium salts change local water chemistry.
We need better guidelines and more education for chemists disposing of it, to avoid accidental harm to waterways. Development of more biodegradable sulfonate alternatives would cut down on long-term effects. Lab life circles back to handling, safety, and responsibility—tenets that keep both people and the environment in good shape.
| Names | |
| Preferred IUPAC name | sodium 2-propanesulfonate monohydrate |
| Other names |
Sodium isopropanesulfonate monohydrate Sodium 2-propanesulfonate monohydrate Isopropanesulfonic acid sodium salt monohydrate |
| Pronunciation | /tuː-proʊˌpeɪn-sʌlˈfɑːnɪk ˈæsɪd ˈsoʊdiəm sɔlt ˌmɑːnəˈhaɪdreɪt/ |
| Identifiers | |
| CAS Number | “207683-19-0” |
| 3D model (JSmol) | `/model=2-Propanesulfonic%20Acid%20Sodium%20Saltmonohydrate&jmol=true` |
| Beilstein Reference | 1109376 |
| ChEBI | CHEBI:87355 |
| ChEMBL | CHEMBL3306441 |
| ChemSpider | 28269173 |
| DrugBank | DB14624 |
| ECHA InfoCard | ECHA InfoCard: 100041-45-4 |
| EC Number | 238-994-1 |
| Gmelin Reference | 60859 |
| KEGG | C14131 |
| MeSH | D017794 |
| PubChem CID | 145298 |
| RTECS number | WO7075000 |
| UNII | F778V8N44A |
| UN number | UN2811 |
| Properties | |
| Chemical formula | C3H7NaO4S·H2O |
| Molar mass | 180.18 g/mol |
| Appearance | White to off-white powder |
| Odor | Odorless |
| Density | 1.485 g/cm³ |
| Solubility in water | Soluble in water |
| log P | -3.3 |
| Acidity (pKa) | 1.53 |
| Basicity (pKb) | 1.2 |
| Magnetic susceptibility (χ) | -7.6e-6 |
| Refractive index (nD) | 1.414 |
| Dipole moment | 6.2 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 151.6 J/mol·K |
| Std enthalpy of formation (ΔfH⦵298) | -1179.8 kJ/mol |
| Std enthalpy of combustion (ΔcH⦵298) | -1310.2 kJ/mol |
| Pharmacology | |
| ATC code | A16AX11 |
| Hazards | |
| Main hazards | Causes serious eye irritation. |
| GHS labelling | GHS07, Warning, H315, H319, H335, P264, P280, P305+P351+P338, P332+P313, P337+P313 |
| Pictograms | GHS05 |
| Signal word | Warning |
| Hazard statements | H315, H319 |
| Precautionary statements | P264, P270, P273, P280, P301+P312, P305+P351+P338, P330, P501 |
| NFPA 704 (fire diamond) | 1-0-0-N |
| Flash point | > 232.6°C |
| Lethal dose or concentration | LD50 Oral Rat 2,600 mg/kg |
| LD50 (median dose) | LD50 (median dose): Oral rat LD50 > 2000 mg/kg |
| PEL (Permissible) | PEL (Permissible Exposure Limit) for 2-Propanesulfonic Acid Sodium Saltmonohydrate: Not established |
| REL (Recommended) | 200 g/L |
| Related compounds | |
| Related compounds |
Propanesulfonic acid 2-Propanesulfonic acid Sodium 2-propanesulfonate 2-Propanesulfonic acid sodium salt 1-Propanesulfonic acid sodium salt Methanesulfonic acid sodium salt Ethanesulfonic acid sodium salt |
