Magnesium Chloride Powder: An Insider’s Look
Historical Development
Magnesium chloride has roots going back to early saltwork practices, long before chemical plants became common. Salt collectors noticed after boiling down salty water, crud coated the pans. Centuries ago, Romans used a crude version to treat livestock ailments. The shift happened in the nineteenth century as chemical analysis picked apart salty brines and found not just sodium chloride, but also magnesium-rich bits left over. During the industrial age, the shift to seawater extraction brought about the large-scale mining needed for manufacturing. Germany and Russia ran early pilot plants, with North American operations only taking off in the mid-twentieth century. Today’s practices came out of hard-won lessons at the interface of geology, industry, and agriculture, forming the backbone of modern bulk supply.
Product Overview
Magnesium chloride powder takes the form of small crystals with a gritty texture, dissolving easily in water. Many people confuse it with Epsom salt, but it holds a unique profile. Over the years, it found many niches: de-icing treatments in chilly regions, dust control in mining and roadwork, flame proofing timber, and as a nutritional mineral source in both animal feeds and dietary supplements. Some formulations find their way into bath soaks and creams, promising a muscle-relaxing soak after work. Its simple composition keeps production costs reasonable, making it accessible for industrial, agricultural, and even personal use.
Physical & Chemical Properties
True to its formula, MgCl₂, pure magnesium chloride looks white to off-white and draws moisture from the air like a sponge. Bulk powder sticks together unless packed well. It dissolves quickly, forming a clear, slightly bitter solution. The dehydrated version has a melting point over 700°C and breaks down before boiling under normal conditions. The hydrated forms, which most folks handle daily, melt at much lower temperatures—somewhere around body heat. Chemically, magnesium ions remain quite stable, meaning powders don’t decompose easily if stored dry. These features drive everything from ice melt to pharmaceutical applications.
Technical Specifications & Labeling
Most suppliers guarantee a certain magnesium chloride content, usually topping 98%, with clear labeling of hydration level. Finer powders get labeled by mesh size, which relates to grain diameter—coarser for de-icing, finer for feed and supplements. Strict quality checks screen for heavy metals, insolubles, and sodium. In regulated spaces like food fortification, paperwork lists lot number, expiration, and purity. Supplement-grade materials come with recommended intake limits. Technical sheets detail water solubility, storage advice, and testing protocols, providing a complete road map from shipment to shelf.
Preparation Method
Commercial output begins with brine harvesting. Crews collect salty water from underground deposits, salt lakes, or ocean evaporation pans, concentrating magnesium-rich brine through solar drying or vacuum treatment. Large-scale operations filter impure solids, then chemically fractionate magnesium from the sodium-heavy portion using selective precipitation. Hot brines speed up evaporation, forming crusty deposits, which get raked off and processed through drying kilns. Refinement strips off water, giving the anhydrous material. Throughout the process, teams sample for unwanted byproducts, washing and filtering powder before packaging, with different grades set aside for food, industrial, or pharmaceutical customers.
Chemical Reactions & Modifications
Magnesium chloride easily swaps its chloride ions in company with strong acids or bases, often serving as a launching point for making magnesium hydroxide in wastewater treatment or acting as a catalyst precursor. Adding alkali produces magnesium hydroxide “milk of magnesia,” famous for neutralizing stomach acids. In cement blending, powder meets up with oxides to build tough, fast-setting mixes. Manufacturers sometimes alter blend ratios to manage moisture content or enhance flow properties for automatic dosing systems. These tweaks reflect trial-and-error improvements as engineers looked for ways to make reliable pellets or dissolve powders faster for commercial use.
Synonyms & Product Names
It’s easy to run across other names in catalogs: magnesium dichloride, deliquescent salt, and E511 appear in product listings. Health and wellness industries might feature “magnesium flakes” or “magnesium oil,” though that last one refers to dissolved powder, not actual oil. Commercial brands file patents under custom blends or trade marks, but anything labeled as “bischofite” typically means a natural mineral source instead of lab-prepared material. Navigating these terms can trip up newcomers, since branding often blurs the lines between pure powders, hydrated flakes, and blended formulations.
Safety & Operational Standards
Handling guidance calls for basic workplace habits—eye protection, gloves, and dust masking in bulk applications. Inhalation of fine powder can irritate the lungs. Spills wash down with water, and powder handled in storage rooms needs sealed drums or air conditioning to prevent clumping. Certification bodies such as the FDA, REACH, and local food safety panels set strict thresholds for contaminants, particularly for supplements or food grade batches. Magnesium chloride handles low-temperature use as a de-icer and high-temperature processing before breaking down at kiln-like heat.
Application Area
Daily use stretches across industries. Road crews reach for heavy bags to beat winter ice, while construction teams blend it into wallboard or cement. Farmers mix into feed or soil to balance magnesium in nutrient-poor fields, with similar roles in aquaculture as a water quality stabilizer. Food manufacturers use E511 to firm up tofu or stabilize processed cheese. Medically, some supplement manufacturers tout magnesium chloride for its rapid absorption. Health resorts market bath soaks and sprays, though peer-reviewed evidence for miracle claims is mixed at best. Even fireproofers pick it for wool and cotton treatments, underlining its extreme versatility.
Research & Development
Current research digs deeper into non-traditional uses, such as green batteries and carbon capture. Material scientists test its role in new biodegradable plastics. There’s active work on making purer, pharmaceutical-grade powder by tweaking ion exchange columns and membrane separation, aiming for near-zero contaminants. Biomedical researchers investigate magnesium chloride for neuroprotection and cardiovascular health—some clinical trials show it may help lower blood pressure, but the jury remains out on optimal dosing and effectiveness compared to other magnesium forms. Agricultural trials examine crop yield improvements when magnesium-rich amendments reach depleted soils.
Toxicity Research
Studies show magnesium chloride’s acute toxicity stays low under typical usage, though megadoses can push blood magnesium levels dangerously high, especially in people with kidney trouble. Occupational exposure prompts long-term monitoring; too much dust can irritate the airways and skin. FDA and EFSA panels classify its food additive risk as low, provided suppliers meet strict impurity limits. Medical literature warns that excessive ingestion can cause diarrhea, nausea, or shifts in heart rhythm. Researchers keep pushing for more data on chronic exposure, especially for folks with high intake through supplements, as the line between “helpful” and “overdose” varies by age and medical condition.
Future Prospects
Growing interest in greener de-icing and soil health keeps magnesium chloride in demand. Engineers keep working on ways to reclaim product from industrial waste streams and salt lake evaporation, hoping to improve yield without ballooning costs. Battery research circles back to magnesium’s unique properties, holding out hope for a less toxic, less resource-intensive storage solution compared to lithium-based systems. On the health front, functional food researchers look to formulate slow-release capsules and magnesium-rich snacks, eyeing markets for wellness-oriented consumers. As environmental regulators tighten up on road salt runoff and heavy metals, more emphasis gets placed on clean production and full-traceability labeling. The coming decade looks set to push magnesium chloride into new territories, both in tech and basic nutrition.
Why Magnesium Matters
Growing up in a household where my grandmother swore by Epsom salt soaks and leafy green salads, I never paid much attention to what made those rituals so essential. Turns out, magnesium sits at the center of both—though few folks connect the dots. Magnesium chloride powder is one form of this mineral, and it plays a key role in keeping the body running smoothly.
A typical adult body carries about 25 grams of magnesium, most of it packed away in bones and muscles. Many people don’t realize that magnesium quietly supports hundreds of enzyme reactions. Without it, basic tasks like making energy, steadying blood sugar, and keeping your heartbeat regular all start to falter. I’ve seen friends struggle with fatigue or muscle cramps, only to find their magnesium levels lagging behind.
Muscle and Nerve Support
A lot of athletes and weekend warriors scoop up magnesium chloride powder to help whip muscle cramps into shape. Magnesium relaxes muscle fibers after they contract, so when levels fall short, tightness and spasms often flare up. I’ve noticed more than a few late-night leg cramps vanish after taking magnesium before bedtime. This isn’t just lore—medical journals back up these personal stories, linking magnesium to better muscle performance and speedier recovery after a tough workout.
Beyond muscles, nerves also count on magnesium. The mineral helps control nerve excitability by blocking calcium’s entry into cells. Too little magnesium can set nerves on edge, sometimes contributing to tingling, numbness, or just plain jumpy feelings. Doctors often suggest magnesium supplementation for folks dealing with nerve pain or restless legs.
Heart Health and Blood Pressure
Cardiologists often highlight magnesium's steadying hand in heart rhythm. Magnesium helps heart muscle cells contract and relax at the right moment, which keeps heartbeats nice and regular. Researchers at Harvard tracked more than 40,000 men and found that those with higher magnesium intake had a lower risk of sudden cardiac death. That kind of real-world impact matters to families everywhere.
Blood pressure, too, gets a boost from magnesium chloride. The powder dissolves easily in water, so it works quickly to relax blood vessels and support healthy circulation. Multiple studies have shown magnesium can lower both systolic and diastolic blood pressure numbers—a welcome benefit for anyone trying to dodge prescription meds or cut their risk for stroke.
Digestive Comfort and Bone Strength
As someone who’s dealt with the aggravation of constipation during stressful travel periods, the gentle, reliable effect of magnesium chloride powder never fails to impress me. It draws water into the intestines, making stools softer and easier to pass without harsh laxative side effects. The relief often arrives without any fireworks, which is a quiet blessing for adults and kids alike.
Bone health often gets tied to calcium, but magnesium is just as important. More than half of the body's magnesium sits inside bone tissue, helping build strength and resisting fractures. Several long-term studies link magnesium intake to higher bone density, especially for postmenopausal women. Dairy doesn’t always agree with everyone, so a magnesium supplement, like magnesium chloride powder, fills gaps for plant-based or dairy-averse diets.
Better Sleep and Stress Relief
Sleepless nights and stress seem to tag-team in today’s fast-paced world. Magnesium supports production of the calming brain chemical GABA, which nudges the nervous system to unwind. Folks often share stories about falling asleep faster or waking up less often after adjusting their magnesium intake. Clinical trials echo these experiences, showing real improvements in sleep quality, especially for people with anxiety or restless sleep patterns.
For anyone looking to support health from many angles—energy, muscles, heart, bones—magnesium chloride powder stands out as a versatile tool. While eating plenty of greens, nuts, and seeds should always be the first step, targeted supplementation makes sense for those falling short. Reliable, well-absorbed, and easy to use, magnesium chloride powder offers simple, science-backed reassurance that small changes can make a big difference.
Why Magnesium Matters
Magnesium lines the nutrition shelves in almost every pharmacy for a good reason. The body uses it for hundreds of things: muscle control, nerve signals, bone health, and day-to-day energy. Magnesium chloride powder steps in as one of the most practical forms, dissolving quickly in water and being easy for the body to absorb.
Ways to Take Magnesium Chloride Powder
Most people mix a measured dose with water and drink it. Doctors and pharmacists recommend following the instructions on the package or what’s written in a prescription. It tastes salty and a bit bitter, so cold water helps soften the flavor. Some users stir in a squeeze of lemon juice. Sometimes people try to toss the powder as a dry shot and follow with water, but that can burn the throat and feels harsh going down.
Transdermal use has grown popular for muscle recovery and cramp relief. Folks dissolve the powder in warm water and soak their feet or make a paste to rub onto sore spots. This gives relief from tired legs after long walks, standing all day, or sports. Many athletes say that baths with magnesium chloride ease muscle knots and make recovery faster. Dermatologists remind everyone to check for broken skin first—open cuts sting or may react badly.
Importance of Proper Dosage
It's easy to believe that more magnesium brings more benefits, but balance matters. High doses cause diarrhea, stomach upset, and sometimes serious heart problems. The National Institutes of Health set an upper daily limit of around 350 milligrams from supplements for most adults. Whole food sources—like nuts and leafy greens—don’t count toward this number. Always double-check the serving scoop size; not every brand sells powder with the same concentration.
Who Should Use Caution?
People with kidney troubles, heart rhythm conditions, or those using certain medications need to take extra care. The kidneys work to process extra minerals, and too much magnesium stays in the blood if the kidneys lag. Some blood pressure medicines and antibiotics interact with magnesium, lowering their effects or raising magnesium to unsafe levels. A doctor or pharmacist can check for potential problems; don’t risk it with guesswork.
Sourcing and Quality
No one enjoys discoveries of contaminated supplements. For a safe product, check the seal and look for brands that publish third-party testing results. Labels should show where the powder comes from, how it was processed, and if it contains unwanted fillers or heavy metals. Quality concerns can crop up in online-only deals or deep-discount shops not known for health products.
Building Healthy Habits
Magnesium chloride works best as part of a broader health routine. Eat foods with magnesium. Drink water. Move daily, stretch, and cut back on stress. Supplements can help fill gaps, but they don’t replace sleep or sound nutrition. People feel the difference most when correcting a true deficiency or facing unique stress on the body—like hard exercise or pregnancy.
Listening to the Body
Rushing to the newest trend can backfire. Side effects—like loose stools or belly cramps—often signal that the body wants less, not more. Visible skin irritation from soaks or topical pastes means switching up methods or giving it a rest for a while. Not everyone needs the same dose; tall, active people or those sweating heavily may notice benefits at slightly higher amounts, under supervision.
Magnesium Chloride: Popular but Not Risk-Free
Magnesium chloride powder shows up everywhere—from supplements at the drugstore to huge bags at garden centers. People mix it into drinks for muscle cramps, pour it into bathwater to “detox,” and use it as a de-icer during winter storms. It almost feels like a harmless staple, but even something that sounds pure can become risky with the wrong approach. I’ve talked to folks who swear by its benefits for leg cramps, and I’ve met others who landed in the doctor’s office after trying to fix a deficiency on their own.
Digestive Discomfort Isn't Uncommon
Most complaints I hear come from the gut. Diarrhea and stomach cramps make up the bulk of side effects for people taking even modest doses of magnesium chloride. The body has to balance electrolytes in a tight range, and magnesium floods can irritate the intestines or draw water into the bowel. According to the National Institutes of Health, excessive magnesium from supplements can overwhelm the body’s normal flushing systems. I once took an over-the-counter magnesium drink thinking it would help post-workout soreness and spent hours regretting how it wiped me out instead.
Kidney Problems Magnify the Risk
For most healthy adults, kidneys filter out extra magnesium pretty efficiently. It’s a different story for people with kidney disease. Their bodies hang onto more magnesium from supplements, which can raise levels into the danger zone. Too much magnesium can mess with heart rhythms, slow breathing, or even cause cardiac arrest in severe cases. The FDA points out that people with kidney trouble face a real risk, so self-medicating becomes much more dangerous. If you already rely on medications that affect kidney function or fluid balance, combining them with magnesium chloride can create new problems your doctor might not see coming.
Drug Interactions You Don’t Want to Overlook
Supplements can feel “natural,” but magnesium chloride doesn’t always play nice with prescription drugs. It can reduce how well some antibiotics, like tetracyclines or quinolones, get absorbed. There’s a back-and-forth between certain heart medications and magnesium too, which may blunt the intended effect or heighten side effects. I’ve had friends who found out the hard way when their magnesium routine canceled out their thyroid meds or blood pressure pills. According to published research, spacing out doses by at least four hours—or better yet, consulting a pharmacist—can help dodge these surprises.
Allergies and Skin Sensitivity
Most people handle magnesium chloride baths or topical sprays, but not everyone escapes unscathed. I’ve heard from eczema sufferers who broke out in rashes after soaking in a magnesium-infused tub. Allergic responses happen rarely, but sensitive skin might sting or itch, especially if there’s already a rash. Reading ingredient lists and starting with small patches minimizes chances for a flare-up.
Practical Ways to Stay Safe
Nobody wants to play guessing games with their health. A blood test offers the best checkpoint to see if magnesium levels are low. Instead of jumping at powders from the first sign of muscle twitching, it pays off to get a professional read. Doctors and dietitians often suggest starting with changes to food—nuts, leafy greens, or whole grains—since nutrition rarely causes excess magnesium issues. For those who need a supplement, smaller, spread-out doses usually go easier on the stomach. Asking a provider about interactions with other medications safeguards against unexpected problems. Taking magnesium chloride isn’t about fear; it’s about tuning in and making smart choices.
What Makes Magnesium Important
Magnesium shows up in the human body in many ways — from supporting normal muscle and nerve function to helping bones stay strong. The body uses it daily, and some foods like seeds, nuts, and leafy greens offer plenty. Deficiency shows up as fatigue, cramps, and sometimes mood swings. Magnesium chloride powder offers a quick way to top up levels, so it’s easy to find at health stores and online. With so many products on shelves, questions about safety for the youngest and for mothers-to-be turn up often.
Understanding Magnesium Chloride Powder
Magnesium chloride dissolves well in water and absorbs quickly. Most people use it as a supplement or add it to baths. Some even apply magnesium oil to the skin, which the body absorbs well for some people. Supplements tend to come with dosage guidelines, but the rules change for kids and women carrying babies. Just because a mineral is vital does not mean more is always better.
Mixing Supplements with Kids’ Needs
A child’s body processes minerals differently from an adult’s. Health authorities such as the National Institutes of Health note safe daily intake limits — for kids ages 1-3, only about 65 mg of magnesium a day is safe from supplements, rising to 110 mg for those 4-8, and 350 mg as teenagers. Surpassing these amounts brings symptoms like diarrhea or cramps. That means dosing from powders requires careful calculation, and families would do best to talk to a pediatrician before offering any supplement — even one marked as “natural.” At home, I’ve seen parents reach for quick-fix powders for a cranky child, hoping a mineral will calm things down. Yet a blood test and professional guidance offer real peace of mind.
Pregnant Women and Extra Caution
Pregnancy increases the body’s mineral demands, so magnesium matters for both mother and baby. Doctors often recommend food-based magnesium sources because foods come with extra nutrients. Those considering supplements turn to their doctor for advice. Pregnant women need about 350-360 mg a day, but all sources count: food, drinks, and supplements together. Too much magnesium from powders can bring risk of diarrhea, low blood pressure, or problems with other mineral balances. Doctors keep a close eye on sources and dosage, since high levels from supplements (not food) can do harm.
Potential Risks and Helpful Precautions
Certain people face extra risks. Kids with kidney issues filter minerals less effectively. Pregnant women with health complications need stricter supervision. Magnesium chloride powder, taken on top of a varied diet, sometimes leads to stomach upset in adults, too. Keeping a food diary or checking for magnesium-rich foods allows parents to check what a child or mother-to-be is already getting. A simple conversation with a healthcare provider may prevent accidental excess, ensuring safety for those most vulnerable.
A Smarter Approach
Magnesium needs fill best from real food. For anyone considering powders or topical forms, smart steps include reading labels, measuring doses, and asking questions before buying. A healthcare professional answers concerns for every age and situation. Transparency from supplement producers — full list of ingredients, testing records, and clear dosage instructions — helps people choose wisely. With attention and care, families can use magnesium safely, supporting health at every stage of life.
The Magnesium Maze
Magnesium supplements line up on store shelves with labels shouting words like citrate, oxide, glycinate, and chloride. Each type gets plenty of attention from health blogs and supplement fans. As someone who has juggled stress, gut health, and sleep problems, I learned quickly that all magnesium types aren’t the same—and neither are the reasons people reach for them.
Magnesium Chloride Powder in Daily Life
A scoop of magnesium chloride powder dissolves easily in water, leaving behind hardly any residue. Compared to magnesium oxide—often packed into crunchy, chalky tablets—magnesium chloride actually gets absorbed by the body in a way folks can feel. I tried both forms after my doctor suggested upping my intake. The oxide upset my stomach and did almost nothing for muscle cramps. Magnesium chloride slid through my system with no bloat or discomfort. That relief pushed me to dig deeper.
Research from the National Institutes of Health points out that only about 4% of magnesium oxide gets absorbed. If I wanted more magnesium in my cells, something easier on the gut made sense. Magnesium chloride carries water well, so the body pulls it in and puts it to work. After a week, I noticed fewer nighttime leg cramps—a common sign of magnesium running low—without the bathroom urgency some forms cause.
Comparing to Magnesium Citrate and Glycinate
Magnesium citrate dissolves smoothly and is a popular choice for people facing slow digestion because it speeds up intestinal movement. In my experience, that rush to the bathroom caused by magnesium citrate seemed like a side effect overkill for someone who just needed more magnesium for tension headaches. Glycinate comes touted as gentle and sleep-promoting, ideal for folks with sensitive stomachs or anxiety. It worked fine for me, but the taste left a lot to be desired, and it cost nearly twice as much as chloride powder in my local store.
A bottle of magnesium chloride powder usually costs less per serving than tablets or blends labeled as “premium.” For people taking supplements daily or using magnesium for bigger issues like migraines or chronic pain, this price difference adds up. Safety-wise, chloride remains reliable if used as directed. High doses of any magnesium can create problems—loose stools, low blood pressure, or kidney strain—but most people tolerate magnesium chloride well below those risky levels.
Is There a Best Form?
People absorb and react to supplements differently. Hydration, diet, and even genetics shape magnesium needs. Athletes with heavy sweat loss, night shift workers missing meals, and folks managing stress all end up looking for reliable ways to cover daily magnesium requirements. Mag chloride powder packs flexibility: it mixes in drinks, gets used in a topical bath for muscle soak, and avoids many of the digestive drawbacks behind other options.
Doctors and dietitians across Europe and the U.S. mention magnesium chloride in discussions about restoring balance for muscle health, hydration, and correction of minor deficiencies. If someone deals with regular muscle aches, restless sleep, or chronic low mood, magnesium chloride makes a strong case—for both science and daily comfort.
Making Smart Choices
Shoppers get flooded with magnesium options promising better sleep, muscle strength, or heart support. It pays to check ingredient labels and start with smaller daily doses. If a person isn’t tied to a specific magnesium for digestion or nervous system needs, picking up a pouch of magnesium chloride powder offers a clear, affordable way to find real relief. Trusting your body’s feedback matters more than marketing slogans. Checking in with a healthcare provider seals the deal for folks with health conditions or concerns.

| Names | |
| Preferred IUPAC name | magnesium dichloride |
| Other names |
E511
Magnesium dichloride Dihydrogen magnesium chloride Magnesium chloride hexahydrate |
| Pronunciation | /maɡˈniːziəm ˈklɔː.raɪd ˈpaʊ.də/ |
| Preferred IUPAC name | magnesium dichloride |
| Other names |
Chloromag
E511 Magnesium Dichloride |
| Pronunciation | /mæɡˈniːziəm ˈklɔːraɪd ˈpaʊdə/ |
| Identifiers | |
| CAS Number | 7786-30-3 |
| Beilstein Reference | 1691116 |
| ChEBI | CHEBI:6636 |
| ChEMBL | CHEMBL1201730 |
| ChemSpider | 10655 |
| DrugBank | DB09444 |
| ECHA InfoCard | 03-2119480764-42-0000 |
| EC Number | 231-793-3 |
| Gmelin Reference | Gmelin Reference: 29218 |
| KEGG | C01778 |
| MeSH | D008275 |
| PubChem CID | 5284359 |
| RTECS number | OM2800000 |
| UNII | 1C6KD88L3E |
| UN number | UN 1418 |
| CAS Number | 7786-30-3 |
| Beilstein Reference | 3598740 |
| ChEBI | CHEBI:6636 |
| ChEMBL | CHEMBL1201121 |
| ChemSpider | 5372546 |
| DrugBank | DB09325 |
| ECHA InfoCard | ECHA InfoCard: 029-004-00-0 |
| EC Number | 231-212-3 |
| Gmelin Reference | Gm.828 |
| KEGG | C01312 |
| MeSH | D017769 |
| PubChem CID | 5284359 |
| RTECS number | OM2800000 |
| UNII | FDRV77N1QK |
| UN number | UN1418 |
| Properties | |
| Chemical formula | MgCl2 |
| Molar mass | 95.21 g/mol |
| Appearance | White crystalline powder |
| Odor | Odorless |
| Density | 2.32 g/cm³ |
| Solubility in water | Soluble in water |
| log P | -4.58 |
| Vapor pressure | Negligible |
| Acidity (pKa) | 9.0 (H2O) |
| Basicity (pKb) | 8.5 |
| Magnetic susceptibility (χ) | −1.0×10⁻⁵ |
| Refractive index (nD) | 1.569 |
| Dipole moment | [9.0 D] |
| Chemical formula | MgCl2 |
| Molar mass | 95.211 g/mol |
| Appearance | White crystalline powder |
| Odor | Odorless |
| Density | 0.9 g/cm³ |
| Solubility in water | Soluble in water |
| log P | -4.07 |
| Acidity (pKa) | 6.0 - 7.0 |
| Basicity (pKb) | 4.69 |
| Magnetic susceptibility (χ) | +120·10⁻⁶ cm³/mol |
| Refractive index (nD) | 1.569 |
| Viscosity | Low |
| Dipole moment | 10.8 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 89.4 J·mol⁻¹·K⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | -641.8 kJ/mol |
| Std enthalpy of combustion (ΔcH⦵298) | -641 kJ/mol |
| Std molar entropy (S⦵298) | 89.6 J·mol⁻¹·K⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | -641.8 kJ/mol |
| Pharmacology | |
| ATC code | A12CC05 |
| ATC code | A12CC01 |
| Hazards | |
| Main hazards | Causes serious eye irritation. Causes skin irritation. May cause respiratory irritation. |
| GHS labelling | GHS07, Warning, H319, P264, P280, P305+P351+P338, P337+P313 |
| Pictograms | GHS07 |
| Signal word | Warning |
| Hazard statements | May cause respiratory irritation. |
| Precautionary statements | Precautionary statements: Keep container tightly closed. Store in a cool, dry, well-ventilated area. Avoid contact with eyes, skin, and clothing. Wash thoroughly after handling. Use personal protective equipment as required. |
| NFPA 704 (fire diamond) | 1-0-1 |
| Autoignition temperature | 625°C |
| Lethal dose or concentration | LD50 Oral Rat 2800 mg/kg |
| LD50 (median dose) | LD50 (median dose): 2800 mg/kg (oral, rat) |
| PEL (Permissible) | 50 mg/m³ |
| REL (Recommended) | 232 - 470 mg |
| IDLH (Immediate danger) | Not established |
| Main hazards | Irritating to eyes, respiratory system and skin. |
| GHS labelling | **GHS labelling for Magnesium Chloride Powder:** "GHS07, Warning, H319, Causes serious eye irritation. |
| Pictograms | GHS07,GHS09 |
| Signal word | Warning |
| Hazard statements | Hazard statements: H319 Causes serious eye irritation. |
| Precautionary statements | Keep container tightly closed. Store in a dry place. Avoid breathing dust. Wash thoroughly after handling. Use personal protective equipment as required. |
| NFPA 704 (fire diamond) | 1-0-0-W |
| Autoignition temperature | 625°C |
| Lethal dose or concentration | LD50 (oral, rat): 2800 mg/kg |
| LD50 (median dose) | LD50 (median dose): Oral, rat: 2800 mg/kg |
| NIOSH | Not established |
| PEL (Permissible) | 50 mg/m³ |
| REL (Recommended) | 200 mg – 350 mg |
| IDLH (Immediate danger) | Not listed. |
| Related compounds | |
| Related compounds |
Magnesium sulfate
Magnesium oxide Magnesium hydroxide Calcium chloride Sodium chloride Potassium chloride Magnesium carbonate |
| Related compounds |
Magnesium sulfate
Magnesium nitrate Calcium chloride Sodium chloride Potassium chloride |