22189-08-8
Magnesium Sulphate Hydrate
CAS: 22189-08-8
Molecular Formula: Mg.O4S
22189-08-8 - Names and Identifiers
22189-08-8 - Physico-chemical Properties
| Molecular Formula | Mg.O4S |
| Molar Mass | 120.37 |
| Density | 2.57g/mLat 25°C(lit.) |
| Melting Point | 150°C (dec.)(lit.) |
| Water Solubility | Soluble in water (360 mg/ml at 20°C), ether (11.6 mg/ml at 18°C), alcohol, and glycerin. Insoluble in acetone. |
| Solubility | H2O: 1M at20°C, clear, colorless |
| Appearance | Crystalline Powder |
| Specific Gravity | 1.68 |
| Color | White |
| Merck | 14,5691 |
| Storage Condition | Room Temprature |
| Sensitive | Hygroscopic |
| MDL | MFCD00149787 |
| Physical and Chemical Properties | White fine oblique or oblique columnar crystals, odorless, bitter, relative density of 1.68. |
| Use | Magnesium sulfate is mainly used in industry, agriculture, food, feed, medicine, fertilizer and so on. |
22189-08-8 - Risk and Safety
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 1 |
| RTECS | OM4500000 |
| FLUKA BRAND F CODES | 3 |
| TSCA | Yes |
| HS Code | 28332100 |
22189-08-8 - Reference Information
| introduction | magnesium sulfate is also called Epsom salt, sulfur, chemical formula MgSO4, white crystal, and there are many kinds of crystal water, among which magnesium sulfate heptahydrate MgSO4 · 7H2O is called Epsom salt; MgSO4 · H2O of magnesium sulfate monohydrate is called magnesium sulfate. Epsom salt is a colorless orthogonal or monoclinic crystal. It loses 6 crystal water at 150 ℃ to form magnesium sulfate; it loses all water at 200 ℃ and becomes anhydrous. Magnesium sulfate is soluble in water, glycerin and ethanol. It is used as a fire retardant and dyeing aid in the textile industry, as a tanning agent and bleaching aid in the leather industry, and also used in explosives, paper, porcelain, fertilizer and other industries. Epsom salt is an antidote for barbinate in medical treatment., Laxative, and used for tissue anti-inflammatory. Use sulfuric acid to act on magnesium oxide or magnesium hydroxide or magnesium carbonate to produce magnesium sulfate. |
| Discovery history | Magnesium sulfate originated from horse racing (Epsom), which was discovered by the British Glejo in 1695 when epsom mineral water evaporated, so it is called epsomsalts in English. It has since been obtained from the sea. In modern times, magnesium sulfate was extracted from minerals such as Epsom (Epsomite). |
| application | magnesium sulfate heptahydrate is an important inorganic chemical raw material with a wide range of uses. In medicine. Used to prepare protective ointments, laxatives, analgesics, antidotes, and can be processed into anticonvulsants, medamycin, acetylspiramycin, creatinine, magnesium trisilicate, griseofulvin, salinomycin, mycetin, Tobramycin, nephritis, gibberellin sulfate, etc.; in the microbial industry, it is used as a culture medium component, a daily additive for brewing, and a nutrient source for fermentation; in light industry, used to produce stabilizers of calcium hydrogen phosphate in fresh yeast, monosodium glutamate, beverages, mineral water, health salt, sea crystal, bath health, beer and toothpaste; used in food additives for nutritional supplements, curing agents, flavor enhancers, Processing aids; in the chemical industry, used to manufacture magnesium stearate, magnesium hydrogen phosphate, magnesium oxide and other magnesium salts and potassium sulfate sodium sulfate; in the printing and dyeing industry, it can be used as an anti-alkali agent, weighting agent and filler; used as a filling reinforcing agent in the tanning industry; used as a conductive salt in the electroplating industry, it can improve the conductivity of the plating solution and make the coating white and soft; used as an aluminum smelting additive to color the aluminum surface; also used as a feed additive, Cement coagulant, flame retardant, explosive, match, porcelain, glass, pigment ABS resin manufacturing; at the same time, it is also used in the water treatment industry of the paper industry. In recent years, with the development of compound fertilizer industry, the demand for magnesium sulfate is also increasing. It can improve the quality of compound fertilizer products and increase the medium elements of crops at the same time. It is an ideal additive for compound fertilizers. |
| production process | at present, the production process of magnesium sulfate mainly adopts sulfuric acid method and sea lake bitter halogen method, etc. in addition, there are some by-product methods to produce magnesium sulfate by using the by-product of boric acid Taibai powder. Sulfuric acid method: Magnesium oxide (magnesium hydroxide or magnesium carbonate) is used to react with sulfuric acid to form magnesium sulfate. The reaction formula is as follows: Mg0 H2SO4 6H2O = MgSO4 · 7H2O Salt Lake Bitter Halogen Method: Magnesium sulfate is obtained by natural evaporation crystallization and refining of the mother liquor of Glauber's salt. Bitter halogen redrying method: using seawater drying method to obtain crude magnesium sulfate heptahydrate containing NaCl, and using water washing method or recrystallization method to produce magnesium sulfate heptahydrate. |
| pharmacological action | magnesium sulfate has cathartic effect. magnesium ions and sulfate ions in its solution are not easy to be absorbed by the intestinal wall, which increases the osmotic pressure in the intestine, moves the water of body fluids to the intestinal cavity, increases the volume of the intestinal cavity, expands the intestinal wall, thus stimulating the afferent nerve endings of the intestinal wall, and reflexively causes peristalsis to increase and diarrhea, the effect is fast and strong. This product, which is orally taken or introduced into the duodenal 30% with a catheter, can stimulate the duodenal mucosa, reflexively cause the gallbladder to empty, and play a choleretic effect; when this product is injected, magnesium ions block the neuromuscular junction And the inhibitory effect on the central nervous system, showing skeletal muscle relaxation, antispasmodic, sedative and reducing intracranial pressure; the injection has an inhibitory effect on the central and direct expansion of peripheral vascular smooth muscle, and reduces blood pressure. It is often used for acute constipation, eliminating intestinal poisons, compatible with anthelmintics to promote the excretion of worms, and treat convulsions caused by cholelithiasis, cholecystitis, tetanus and eclampsia, hypertensive crisis, and pregnancy poisoning. It has a good effect on angina pectoris. |
| use | magnesium sulfate is mainly used in industry, agriculture, food, feed, medicine, fertilizer, etc. |
Last Update：2024-04-09 15:16:48
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