Basic magnesium carbonate / light magnesium carbonate /magnesium carbon hydroxide

English Name: magnesium carbon hydroxide; Pentamagnesium tetracarbonate dihydroxide pentahydrate

Other names: light magnesium carbonate; magnesium carbonate 

CAS No.: 56378-72-4

Mg5(CO3)4(OH)2•5H2O=485.65

Grade: ar

Content (calculated by MgO): 40.0 ~ 44.5%

Barium: ≤ 0.005%

Calcium: ≤ 0.10%

Basic carbonate: acceptable

Phosphate: ≤ 0.001%

Sulfur compounds: ≤ 0.02%

Chloride: ≤ 0.01%

Water soluble matter: ≤ 0.40%

Acid insoluble matter: ≤ 0.025%

Iron: ≤ 0.005%

Nitrate: ≤ 0.005%

Zinc: ≤ 0.01%

Heavy metals: ≤ 0.002%

Physicochemical properties: white loose light powder, usually gathered into fragile small groups. It is insoluble in water, insoluble in ethanol, and soluble in ammonium salt solution. Heating to 700 ℃ can turn into magnesium oxide, water and carbon dioxide. Dissolve in dilute acid and release carbon dioxide

Purpose: biochemical research. It is used for rubber filler, magnesium salt manufacturing, pharmaceutical industry, making high-grade glass, as fireproof and insulating materials, and also for shipbuilding, boiler manufacturing, daily chemical industry, etc

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