Magnesium sulfate can be used to make leather, explosives, paper, porcelain, fertilizer, and oral laxatives in medical treatment.Magnesium sulfate is used in agriculture as a fertilizer, because magnesium is one of the main components of chlorophyll.Crops commonly used in potted plants or magnesium deficiency, such as tomatoes, potatoes, roses, etc.Magnesium sulfate has a higher solubility than other fertilizers.Magnesium sulfate is also used as bath salts.Magnesium sulfate, or anhydrous magnesium sulfate, is a kind of magnesium compound, anhydrous magnesium sulfate is a kind of common chemical reagent and dry reagent, but seven water magnesium sulfate, magnesium sulfate often refer to as white small oblique or columnar crystal, odourless, taste bitter, clinically used catharsis, cholagogue function, anticonvulsants, eclampsia, tetanus, high blood pressure, etc.[1]
Magnesium sulfate in Chinese
English name magnesium sulphate
It is called Epsom salt, bitter, bitter salt and salt-salt
Chemical formula MgSO4
The molecular weight of 120.3687
CAS, 7487-88-9
EINE 231-298-2
Melting point is 1124 ℃
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1 physical and chemical properties
Physical property
Chemical property
2 preparation method
3 main USES
Forced the building materials
Forced the medicine
Forced the industry
Forced the agricultural
4 precautions
Introduction to danger
Risk terminology
Transport characteristics
Operation disposal and storage
First aid measures
Fire protection measures
Emergency treatment
Basic information
Chinese name Magnesium sulfate Don't say English name magnesium sulphate Epsom salt, sulfur, bitter, bitter salt, epsomite chemical formula MgSO4 molecular weight 120.3687 CAS login registration number 7487-88-9 EINECS number 231-298-2 melting point 298 ℃ water soluble 25.5 g / 100 ml (20 ° C) dense degree of 2.66 g/ml flash point of view of white crystalline solid 1124 molecular weight 120.415 g · mol - 1 MSDS External MSDS water absorbing capacity of 1.05 (with MgSO4 · 7 h2o)
Physical and chemical editing
Physical properties
Solubility: soluble in water, soluble in ethanol, glycerin, ether, and insoluble in acetone.[1]
Chemical properties
Stability: no water sulfite is easy to absorb water, 7 water sulfite is easy to dehydrate
Toxicity: low toxicity
Toxicology data: mouse subcutaneously: ld50645 mg/kg (hypodermic);Mouse abdominal cavity: 670-733mg/kg
Irritation: this product may cause stomach pain, vomiting, water diarrhea, waste, breathing difficulties, violet and other [1]
Preparation method editing
Magnesium oxide, magnesium hydroxide, magnesium carbonate and rhomboli are used for the decomposition or neutralization of sulfuric acid.It is also used to produce potassium chloride as the raw material, mixed with the magnesium mother liquor after the production of the bromine, and the cooling crystallization is separated by the magnesium sulfate, which is then filtered, mixed and cooled to crystallize the magnesium sulfate.It can also be obtained from the carbonization of magnesium oxide and gypsum water suspension.[1]
Related chemical equation:
1, Mg + - H2SO4 = H2 write + MgSO4
2, MgO style + - H2SO4 = H2O + MgSO4
3, Mg (OH) 2+H2SO4
4, MgCO3 + - H2SO4 = write CO2 + H2O + MgSO4
5, 2 mgso3 mgso4 + O2 = 2
6, Mg + FeSO4 = Fe + MgSO4
7, Mg + CuSO4 = Cu + MgSO4 [1]
8, Mg + ZnSO4 = zinc + MgSO4
Main purpose editor
Building materials
Magnesium sulfate is soluble in water and can react with light burning powder to form magnesium oxide cement.It has good fire resistance, heat preservation, durability and environmental protection. It is applied to fire door core board, external wall insulation board, silicon modified insulation board, fire prevention board, etc. [2].