Spherical Calcium Chloride: Past, Present, and Road Ahead

Historical Development

Calcium chloride carries a long legacy in the chemistry world. Before the modern push for spherical products, people sourced this salt from natural brines and limestone, mostly in blocks or flakes. Early on, calcium chloride mostly found its way onto icy roads, keeping cars moving during winter. Chemists learned quickly that controlling shape influences handling and function. Over time, technologies emerged to deliver a rounder particle, either by spray drying techniques or through similar shaping processes. In the late twentieth century, refiners moved from crude chunks and irregular pellets to the more manageable, free-flowing spheres. Growth of food processing, oil drilling, and advanced manufacturing placed fresh demands on both purity and consistency. This push fed a shift from bulk flake and powder to specialized spherical forms.

Product Overview

Spheres of calcium chloride stand out from coarse flakes. These round beads travel through machines with far less clogging, keep better in humid places, and offer precise dosing for industrial and food use. Across industries, spheres replace lumpier forms where uniformity in motion or blending makes a difference. Today’s leading suppliers deliver nearly dust-free beads, ranging from tiny microbeads to multi-millimeter balls. Anyone running a food dehydration plant or concrete batcher knows the efficiency and reliability that smooth, stable spheres bring to daily work. In some lines, even pharmaceutical cGMP standards guide the shape and purity, as these beads show up in sensitive labs and clean rooms.

Physical & Chemical Properties

Spherical calcium chloride, with the formula CaCl2, forms white solid beads. These solids pull water from air in almost any environment. Spheres measure between 0.5–3 mm in diameter, each bead dense and hard enough to hold its shape under rough handling. Hygroscopic nature makes the material perfect for moisture control—spheres can soak up more than their weight in water. At room temperature, they resist caking, hold a high melting point, and dissolve fast and completely in water. Most spheres weigh in at purity levels above 94%, though some reach beyond 99% for laboratory or food standards. Impurities like magnesium, potassium, or sodium rarely cross the 1% threshold. Color stays bright white, as even a hint of yellow or grey signals a contaminant.

Technical Specifications & Labeling

Manufacturers set clear benchmarks for calcium chloride spheres. Product sheets spell out bead size (with D50 or D90 diameter), purity, bulk density, moisture content, and flowability. Each pail or bulk tote arrives with hazard pictograms, batch identification, manufacturing date, and expiry, especially when spheres land in food or drug streams. Most labels point out regulatory compliance with REACH or local purity rules. Those who handle production carefully control dust, foreign bodies, and control trace metals by regular QA checks. Shipping documents declare the substance as non-flammable, but packers still guard tightly against accidental spills and label each drum against accidental mixing with acids.

Preparation Method

Production of spherical calcium chloride follows a well-honed path. It starts with raw materials—lime (calcium carbonate) and hydrochloric acid. These react to form a concentrated solution of CaCl2. After the chemists remove impurities, the liquid runs through a spray drying tower or prilling equipment. Tiny droplets form as the hot tower evaporates water from each particle. Timing and air speed inside the tower decide final bead diameter. Years ago, basic gravity pans or tumblers made irregular chips; today, strict spraying and cooling protocols shape tight, tough, uniform spheres. Plant operators constantly check nozzle integrity, temperature ranges, and drying times to prevent sticking or crushed beads. A final sieving step removes broken pieces and dust, leaving only true spheres.

Chemical Reactions & Modifications

Calcium chloride reacts energetically with water. On contact, spheres dissolve fast, releasing heat—feature valuable for de-icing or quick moisture absorption. Adding calcium chloride to sodium carbonate makes insoluble calcium carbonate, essential in water softening. In food and drink, calcium chloride spheres tweak processes like cheese curdling, pickling, or mineralizing bottled water. On the chemical side, CaCl2 offers chloride ions for reactions or chips in as a drying agent in organic syntheses. Researchers sometimes coat beads for controlled-release or add anticaking agents to toughen the surface. Certain grades go through a second purification, stripping out even trace levels of heavy metals for pharmaceutical use.

Synonyms & Product Names

Spherical calcium chloride goes by many names across catalogs: Prilled CaCl2, Beaded Calcium Chloride, Round CaCl2, and in purest food forms, E509. Some suppliers brand their produce as SuperSpheres or DryFlow Beads. In agriculture or deicing, it falls under high-strength road salt or pelletized desiccant. Most regulatory texts refer simply to calcium chloride, with a particle description added for detail. In food labeling, E509 stands as the mark of compliant material in dried fruits, cheese, tofu, or mineral water. Labs and water treatment outfits often specify prill size over brand, since downstream equipment can clog with the wrong diameter.

Safety & Operational Standards

Handling spherical calcium chloride calls for practical care. The beads give off heat and can sting eyes and skin if handled carelessly—work gloves and safety glasses belong in every operator’s kit. Dust forms easily during transfer, so ventilated areas or dust masks shield against minor irritation. Since spilled beads suck up water, floors can turn slick or sticky, making quick cleanup essential in busy plants. Most facilities follow local hazard protocols: marked bins, periodic safety training, and secure storage above the ground to keep bags dry. Those producing food or pharmaceutical grades run extra checks for foreign materials and keep calibration logs to prove purity and bead structure.

Application Area

Spherical calcium chloride’s reach stretches across industries. In food production, it keeps cut fruits and pickles crisp or strengthens cheese curds. Road maintenance teams use spheres to de-ice streets or tamp down dust on dirt tracks. Researchers rely on its drying power for air and solvent streams in the lab. Within concrete mixing, it helps set times on chilly days and boosts finished strength. Oil drilling operations inject spheres into wells for moisture control and clay stabilization. In bottled water, minute beads fortify mineral content without leaving a bitter taste. Water treatment operators regularly lean on spheres for hardness balancing and heavy-metal precipitation. Each trade values the product for quick dissolution, purity, and clean delivery.

Research & Development

Advances in calcium chloride production keep coming. Labs work on beads that swell or shrink with temperature—a property for smart packaging or advanced cooling systems. Studies now look at composite spheres, where the base holds additional nutrients or slow-release additives. Food technologists target tighter size control, which ensures cheese batches set evenly or fruit slices get just the right firmness. Industrial chemists pilot new surface coatings to hold spheres fresh longer even if bags get ripped in transit. Automated monitoring, like in-line laser particle size measurement, helps cut human error. Documented results show the industry’s push for greener methods, reducing acid use and leaning into recycled lime or recovered hydrochloric acid streams.

Toxicity Research

Toxicity studies remain a backbone for regulatory acceptance. In most cases, calcium chloride remains low-risk—food safety authorities across Europe, the US, and Asia greenlight E509 at levels far above what practical use demands. Acute hazards arise only in large, accidental exposures: skin burns from direct contact, digestive upset if large doses are swallowed, eye irritation after a splash. Environmental studies routinely show that runoff from de-icing melts into natural calcium and chloride ions, blending into mineral cycles with little long-term impact on land or water. Still, researchers keep a close watch for any bioaccumulation in sensitive aquatic species, especially as road salt volumes grow worldwide. Periodic reviews by food authorities and occupational safety boards keep exposure guidance well vetted and up to date.

Future Prospects

Looking ahead, the market for spherical calcium chloride keeps expanding. Demand from clean food tech and precision farming continues to push purity and traceability. Next-wave battery makers experiment with calcium chloride spheres to manage heat and moisture in high-voltage cells. Oil and gas firms seek blends with tailored release rates for underground wells. Urban planners move toward greener deicers to cut chloride pollution, giving an edge to super-pure, tightly calibrated beads. In packaging, engineers imagine sensors powered by the exothermic burst as beads pull water from air. Through each cycle of innovation, producers balance the need for simple, affordable raw materials with rising expectations for environmental safety, user health, and performance.



What is spherical calcium chloride used for?

A Closer Look at Spherical Calcium Chloride

Spherical calcium chloride usually catches the eye because of its shape. Small, round granules flow without sticking together, which anybody who's had to handle clumpy powders can appreciate. It’s got a lot of muscle as a moisture-hunter—something folks working in warehouses and shipping know well. Those white beads working away in the corners of a truck or stashed in a box of electronic goods are there to keep precious cargo safe from ruin. They pull water right out of the air, beating back mold, must, and damage.

On the Road and in the Barn

A big arena for these round granules is keeping roads safe in the winter. Truck drivers hauling heavy loads over icy highways count on calcium chloride to lower the freezing point of water. Spread on roads, those beads break through layers of ice, making some of the nastiest commutes a lot less dangerous. Unlike chunky rock salt, the spherical stuff rolls and scatters, nabbing a bigger area with less material. Farmers and ranch hands find another use: they fill tractor tires with a calcium chloride solution. This gives machinery better grip in bad weather and keeps farmers working instead of spinning their wheels.

Taking Care of Business in Everyday Life

People in construction run into moisture problems all the time. Wet concrete slows down a job. Spherical calcium chloride speeds things up. Added to cement and concrete mixes, it hustles along setting in cold conditions, cutting delays and costs. Stores selling pet food, vitamins, and snacks make use of it too. Calcium chloride beads soak up moisture before it can work its way into packets and ruin everything inside. Fewer spoiled goods mean less waste and more money saved.

Supporting Factories and the Food Chain

At the plant, efficiency keeps the lights on. Equipment has to last, and downtime is expensive. The round pellets go into drying towers and pipelines where they trap stray water vapor, protecting machinery and raw materials. Food makers see another benefit. It can be tough to stop veggies from turning to mush or cheese from growing the wrong kind of funk. A sprinkle of calcium chloride keeps things crunchy and prolongs shelf life, which helps feed more families with less effort.

Environmental and Safety Considerations

Calcium chloride doesn’t come without questions. Spilled on the ground, it can make the soil and local streams salty, which stresses plants and water bugs. Cities test out alternatives or mix it with sand to cut down on the amount needed. Regular training and good storage cut down on risks for people who handle the stuff often. Industry groups and scientists keep an eye on these impacts and look for ways to do better—new forms with coatings, smarter packaging, or even different chemicals altogether.

Room for Innovation

Every year brings tweaks and improvements. Companies fine-tune bead shapes for easier handling or longer-lasting action. Research backs up choices about where and how to use them. Digital monitoring tells road crews exactly when to lay down a fresh batch or when a warehouse needs a refill. The aim is always to keep products safe, help people get home in one piece, and make sure the work goes on.

Is spherical calcium chloride safe to handle?

Looking at the Basics

Calcium chloride stands out in the world of common chemicals. Many folks recognize its regular use for melting ice on sidewalks and roads. Spherical calcium chloride, with its smooth, pellet-like shape, turns up not just for de-icing but also in food, labs, pool care, and even some home-brewing kits. With so many possible uses, people naturally ask about safety. My own experience working in science labs and helping neighbors with ice in winter gives me a practical view.

Touch, Taste, and Safety at Home

Most people spot those white pellets after a snowstorm. Bare hands get exposed to them while scattering them across cement steps. No one seems to panic, but a few minutes later, you might notice dry skin or an unpleasant itch. Calcium chloride pulls moisture out of whatever it touches, including your skin. In low doses, touching it once or twice during a snowy season doesn’t lead to real harm. Repeated or prolonged contact, though, dries out skin enough to cause redness, irritation, or sometimes even cracking. If it gets into eyes, a sting kicks up faster than you might expect. Goggles and gloves aren’t overkill in handling.

Kitchen-grade calcium chloride sometimes goes into pickling. This version passes through food safety checks that industrial forms do not. Food additive labels guarantee a minimum level of purity. Swallowing this type in small amounts poses no risk. By contrast, never eat calcium chloride marked for de-icing or pools. Those products might contain impurities or other chemicals.

Beyond the Kitchen: Work and Science Perspectives

Jobs in water treatment or pools use spherical calcium chloride for hardness control. Scattered on job sites or dumped into tanks, it can send dust into the air—a real hazard for people with asthma or sensitive airways. In the lab, the same material appears dry and unremarkable, yet it reacts fast with water or acids, sometimes heating up quickly. Pour a handful onto wet concrete, and it can feel warm or slightly hot, thanks to a strong exothermic effect.

It’s not uncommon to see warnings about ingesting, inhaling, or long exposure. The Material Safety Data Sheet (MSDS) calls for basic precautions: gloves, goggles, and avoiding dust clouds. Easy steps make a difference. Trouble shows up only after a spill into your eyes, a deep inhale, or regular exposure without washing hands. Rare allergic reactions happen just like with other chemicals, so people with sensitive skin should stick with protective gear.

Facts, Claims, and Sensible Safety Steps

Calcium chloride has an LD50 in rats (the dose that kills half the test animals) around 1,000 mg/kg, much less toxic than table salt at similar volumes. Problems in people pop up like cramps or vomiting, but only from heavy doses far beyond everyday use. The main risk comes from careless handling, not normal sprinkling. Evidence from poison control centers supports the view that home accidents stay minor compared to strong acids or truly hazardous substances. Taking the risk seriously doesn’t mean panic, just washing hands after handling, keeping pellets out of children’s reach, and using goggles around powder.

Some communities respond to wintertime overuse with better signage and public info on how to handle products. At home, tech like pet-safe de-icers or resalable child-resistant containers helps. If you get calcium chloride in your eyes, rinse right away with cool water.

Everyday Care Goes Far

Spherical calcium chloride, in its many forms, isn’t a villain. Respecting its ability to dry out surfaces and heat up in water goes a long way. In my life, a pair of sturdy gloves and quick handwashing after use have kept my skin comfortable. Families with kids or pets should pay extra attention, storing bags up high and reading labels closely. Good habits make this useful chemical safe for ordinary folks, without needing to fear every white pellet on the sidewalk.

How should spherical calcium chloride be stored?

The Stuff’s Hungry for Moisture

Spherical calcium chloride draws in moisture like a magnet. Anyone who has worked with bulk bags or pails of this material knows how a damp warehouse or a careless open bucket quickly turns crisp pellets into a sticky mess. Years ago, I watched a 25-kilo sack turn clumpy after a summer rainstorm because it sat too close to a drafty window. One wet night was all it took. Workers waste time breaking up chunks, and nobody wants to use something that’s gone soft.

The science backs this up. Calcium chloride’s hygroscopic nature means it fiercely grabs water from the air. That process starts once the factory seal cracks. Losses in storage grow, quality drops, and contamination risks come into play. For folks in food and beverage, pharmaceuticals, or roads and construction, that’s actual money leaking away in every humid hour.

Containers and Packaging: The Right Fit

In practice, tight-sealing containers matter far more than fancy humidity charts. Drum lids, heavy-duty resealable bags, proper liners—all these ensure moisture stays out. I’ve seen operations use double bagging and throw in extra desiccant packets. That might seem over the top, but when product lifespan means the difference between usable and a write-off, spending a few dollars upfront often saves headaches.

Most suppliers use thick polyethylene liners in drums, usually tucked inside thick paper or plastic exterior packaging. After opening, prompt resealing stands as the frontline defense. Some warehouses run a simple routine: scoop what you need, seal it straight away, and stash it off the floor on pallets. Getting lazy about closing containers only shortens the shelf life and puts inventory at risk.

Temperature Makes a Difference

Warm storage environments make calcium chloride’s water absorption even worse. If you’ve ever spent time in a warehouse without air conditioning in July, you know the air feels heavier, and so do sacks left too long outside. Lower temperatures mean less water vapor in the air, and the pellets last longer in their original state.

Refrigeration isn’t usually required, but routine storage in a cool, dry place pays off—especially for smaller-scale users who go through product more slowly. Through personal experience, overhead fans or basic climate controls do the job, as long as people stay on top of leaks and open doors.

Labeling and Segregation: Keeping Things Clear

Mislabeling or tossing calcium chloride near strong-smelling or incompatible chemicals introduces risk. One slip with mislabeled pails can end in product recalls, regulatory trouble, or angry customers. Sharp labels with clear expiration dates along with batch numbers help track the age of inventory. Simple routines like “first in, first out” rotate the oldest stock up for use, shrinking the odds of having ruined pellets down the line.

Personal Responsibility in the Chain

Throughout my career, strong training wins out over surveillance or reminders. Everybody in the supply chain, from receiving staff to line operators, needs clear guidance on why seals matter and how easily this stuff can spoil. Loose procedures almost guarantee product loss and safety risks. Following specific handling guidelines, updating logs, and giving workers a say in designing procedures pay dividends.

Smart Practices in Action

Long-term, automation offers a boost. The best run suppliers now use environmental monitors and smart sensors to alert staff about humidity changes. Digital inventory platforms track lots and remind teams to rotate stock. While not every business adopts the latest tools, the basic principles remain: seal it, store it dry, and keep the cycle moving.

Simple adjustments—closing lids after use, updating logs, and steering clear of damp spots—help keep calcium chloride in shape. The difference between chalky clumps and crisp pellets often lies in these little habits. In my view, strong product handling makes life easier, saves money, and protects staff and end-users alike.

What is the difference between spherical and regular calcium chloride?

A Close Look at Two Common Forms

Calcium chloride pops up everywhere, from road salt to food preservatives. Some people only spot the label in winter, but anyone handling chemicals sees at least two main types: regular (flaked, granular, or powdery) and spherical. If you ask why manufacturers bother making two versions, the answer comes down to handling, process reliability, and end use.

Let’s Break it Down: Texture and Shape

Regular calcium chloride comes in a range of shapes—flakes are flat and light, granules are smaller but rough, and powders are even finer. Spherical calcium chloride balls up into round pellets. This simple shift in shape carries real meaning for the folks moving, mixing, or storing it.

Round pellets roll. They don’t cling to each other or pack as tightly as flakes do. When I used to unload bulk bags at a snow control depot, I saw that regular granules sometimes clogged hoppers, especially on damp days. Spherical pellets rolled right through. In big food plants, a similar story plays out—pellets flow smoothly, making for less downtime and fewer clogged augers.

Performance in Action

Flakes soak up moisture from the air faster. This helps in dust control or concrete, where a fast reaction matters. Granules dissolve more quickly than spheres, so workers might pick regular calcium chloride for jobs needing rapid melting. On icy sidewalks, those little crystals break apart and release their punch fast. Pellets, by contrast, take longer but last a bit more, so they’re useful where you want slower, steady action.

From my experience, contractors don’t always think about the science at play—until they notice performance issues. Spend a few nights spreading deicer, and you’ll pick up the differences. If you try to use the spherical kind for quick de-icing, you’ll often feel frustrated with the slower results. Yet those same characteristics make spheres great for controlled humidity cases, like packaging or some fireproofing applications.

Purity and Cleanliness

The process to make spherical pellets tends to produce a cleaner end product. There’s less dust, so air quality in warehouses improves. Powder from regular forms gets everywhere—on floors, in the air, on your clothes. Anyone with mild asthma or sensitive skin ends up wishing the product stayed in the bag. Food-grade standards also lean toward spherical calcium chloride in some cases, because keeping foreign particles out is easier when the product isn’t dusty.

Economic and Practical Choices

Price divides these types. Flakes and granules almost always cost less, since manufacturing them is simpler. If you’ve got a budget to stick to, or the job allows for a little mess, regular forms work fine. Spherical pellets generally cost more, but in technical or sensitive processes, their flow properties and reduced dust can cut long-term costs. In food or pharmaceutical plants, minimizing contamination or process downtime saves more money than anyone spends on materials.

Looking Ahead: Smarter Choices

Many industries face rising demand for safer, cleaner workplaces. Modern equipment asks for more consistent materials. Spherical calcium chloride answers these needs in specific ways, but traditional forms keep their place. Choosing which to use isn’t just about chemistry—it’s about understanding the setting. I’ve seen both types perform well, as long as users pick the right one for the right job. Being thoughtful about form can save time, reduce hassle, and sometimes improve safety—lessons learned not just in the lab, but in the real world.

What are the main advantages of spherical calcium chloride in industrial applications?

Form That Matters

Working in factories that handle bulk chemicals, you quickly see how a product’s shape changes the job. Spherical calcium chloride stands out compared to flake or prilled versions. Because the granules roll rather than stick or powder, storage silos empty with fewer clogs. Anyone who’s had to break up a sticky clump at the bottom of a chute will tell you those “little details” make a shift much easier. By resisting breakage, these spheres also cut dust problems, making warehouses and work areas safer.

Quick Dissolving, Fast Action

Many industries benefit from how easily spherical granules dissolve. Take dust control on gravel roads at mining and construction sites—the quicker the product dissolves, the sooner work can restart. Cold climate operations, like those in Canada, rely on rapid ice melting. In this case, round pellets hit the ground and start working almost at once compared to slower-acting flakes. It’s not just speed for speed’s sake; faster melting helps keep crews and drivers safe with less downtime.

Consistent Results for Precise Operations

Food processors, breweries, and pharmaceutical plants need accuracy in every batch. Spherical calcium chloride offers a predictable dosing experience since the pellets stay the same size from one shipment to the next. Whether restoring the mineral balance in a drinking water supply or controlling hardness in a commercial boiler, confidence in the product means fewer headaches for operators and quality managers.

Cleaner, Safer Handling

Anyone tasked with cleanup after a chemical spill knows how much mess fine powders create. Spherical granules don’t scatter as much when bagging or pouring, so air quality in the workspace improves right away. Blowing calcium chloride dust around isn’t just an annoyance—it can trigger respiratory or skin irritation. OSHA data shows that minimizing airborne chemicals directly supports worker health. Better handling properties lower risk, plain and simple.

Stretching Every Dollar

In energy-intensive sites like steel and concrete plants, material loss eats into profits year after year. Spherical pellets spill less and sweep up easier, which means producers waste less and gain more. Transport companies also benefit since these pellets pack densely, saving space with every load. The round shape means more weight in every truck, cutting freight costs and storage headaches at the same time.

Staying Ahead of Regulations

Environmental rules around chemical handling keep tightening. Spherical calcium chloride supports safer, more controlled application whether sprayed on roads or used in refrigeration. Less airborne dust and lower risk of product loss means communities face fewer environmental complaints. In my own experience, regulatory inspectors notice operations that keep product where it belongs, rather than all over the ground or in storm drains.

Where It Fits Best

From oil drilling to manufacturing soft drinks, operations value predictability, safety, and efficiency. Spherical calcium chloride delivers all three. It seems like a small change from flake or powder, but those details add up. Over years in industrial settings, the biggest operational advantages consistently come from seemingly minor tweaks—like switching to a better form of an everyday chemical. That’s what real progress looks like on the ground.

Spherical Calcium Chloride
Spherical Calcium Chloride
Names
Preferred IUPAC name Calcium chloride
Other names Calcium Chloride Balls
Prilled Calcium Chloride
Calcium Chloride Spheres
Round Calcium Chloride
Granular Calcium Chloride
Pronunciation /ˈsfɪr.ɪ.kəl ˌkæl.si.əm ˈklɔː.raɪd/
Preferred IUPAC name Calcium chloride
Other names Spherical CaCl2
Calcium Chloride Balls
Calcium Dichloride Spheres
Anhydrous Calcium Chloride Spheres
Granular Calcium Chloride
Pronunciation /ˈsfɛrɪkəl ˌkælsiəm ˈklɔːraɪd/
Identifiers
CAS Number 10043-52-4
Beilstein Reference 3918732
ChEBI CHEBI:3312
ChEMBL CHEMBL1201142
ChemSpider 21235
DrugBank DB09449
ECHA InfoCard 07bb7bbd-b02d-41f2-9648-b1aa1e76e6b5
EC Number 233-140-8
Gmelin Reference 87522
KEGG C00954
MeSH D017325
PubChem CID 5284359
RTECS number EV9800000
UNII 1F6P7UK492
UN number UN1748
CompTox Dashboard (EPA) DTXSID0027142
CAS Number 10043-52-4
Beilstein Reference 3536986
ChEBI CHEBI:31344
ChEMBL CHEMBL1201162
ChemSpider 27258
DrugBank DB09449
ECHA InfoCard 09b21b7d-37f7-4301-b1c4-de8ad6b8573c
EC Number 231-210-2
Gmelin Reference 70067
KEGG C01537
MeSH D013366
PubChem CID 5284359
RTECS number EV9810000
UNII J8897INI81
UN number UN1748
CompTox Dashboard (EPA) DTXSID7034020
Properties
Chemical formula CaCl2
Molar mass 110.98 g/mol
Appearance White spherical granules
Odor Odorless
Density 2.15 g/cm³
Solubility in water Readily soluble in water
log P -1.72
Vapor pressure Negligible
Acidity (pKa) 8.0–9.0
Basicity (pKb) 8.3
Magnetic susceptibility (χ) Diamagnetic
Refractive index (nD) 1.437
Dipole moment 10.27 D
Chemical formula CaCl2
Molar mass 110.98 g/mol
Appearance White spherical granules
Odor Odorless
Density 2.15 g/cm³
Solubility in water readily soluble
log P -1.72
Vapor pressure Negligible
Acidity (pKa) 8.3
Basicity (pKb) 8.3
Magnetic susceptibility (χ) Diamagnetic
Refractive index (nD) 1.445
Dipole moment 2.35 D
Thermochemistry
Std molar entropy (S⦵298) 104.6 J/(mol·K)
Std enthalpy of formation (ΔfH⦵298) -795 kJ/mol
Std molar entropy (S⦵298) 124.5 J·mol⁻¹·K⁻¹
Std enthalpy of formation (ΔfH⦵298) -795 kJ/mol
Pharmacology
ATC code A12AA04
ATC code A12AA04
Hazards
Main hazards Harmful if swallowed, causes serious eye irritation, may cause respiratory irritation.
GHS labelling GHS07, GHS05
Pictograms GHS05,GHS07
Signal word Warning
Hazard statements Hazard statements: H319 Causes serious eye irritation.
Precautionary statements P264, P270, P280, P301+P312, P330, P501
NFPA 704 (fire diamond) 1-0-1
Flash point >160°C (Closed cup)
Autoignition temperature > 1600 °C
Explosive limits Non-explosive
Lethal dose or concentration LD50 Oral - rat - 2,300 mg/kg
LD50 (median dose) 1890 mg/kg (rat, oral)
NIOSH NIOSH: EV9800000
PEL (Permissible) PEL: 15 mg/m³ (total dust), 5 mg/m³ (respirable fraction)
REL (Recommended) 0.3 – 0.6%
IDLH (Immediate danger) NIOSH: 20 mg/m3
Main hazards Causes serious eye irritation. Causes skin irritation. May cause respiratory irritation.
GHS labelling GHS07, GHS05
Pictograms GHS05,GHS07
Signal word Warning
Hazard statements H319: Causes serious eye irritation.
Precautionary statements P260, P264, P270, P271, P301+P312, P330, P304+P340, P305+P351+P338, P312, P403+P233, P405, P501
Flash point >160°C
Autoignition temperature > 1600 °C
Lethal dose or concentration LD50 Oral Rat: 1000 mg/kg
LD50 (median dose) 2,300 mg/kg (rat, oral)
NIOSH NIOSH: EV9800000
PEL (Permissible) PEL (Permissible): 15 mg/m³ (total), 5 mg/m³ (respirable fraction) as nuisance dust (OSHA)
REL (Recommended) 1.0-3.0%
Related compounds
Related compounds Calcium chloride dihydrate
Calcium chloride hexahydrate
Anhydrous calcium chloride
Magnesium chloride
Sodium chloride
Potassium chloride
Related compounds Calcium chloride dihydrate
Calcium chloride hexahydrate
Anhydrous calcium chloride
Magnesium chloride
Potassium chloride
Sodium chloride
Calcium sulfate