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Magnesium hydroxide CAS 1309-42-8,white powder.Magnesium hydroxide.In the water solubility is small, in the nature, content is rich, used as analytical reagent, also used in the pharmaceutical industry.
Physical properties
Appearance White fine powder
Density,20℃,g/cm3 2.36
Boiling point,℃ 100
Melting point,℃ 350
Solubility Slight soluble in water, ethanol & other organic solvents.
Specification
Items BP2010 grade USP35 grade Industry grade
Identification positive Positive
Loss on ignition 29.0% ~32.5 % 30.0~33.0% 28-32
Soluble salt 2.0% 2.0 Max
Acid insolubles 0.1% MAX 0.1% Max
Assay 95.0%~100.5% 95.0%~100.5% ≥95
Heavy metal 0.003% MAX 0.002% MAX
Ca 1.5% MAX 1.5% MAX
Fe 0.07% MAX --- 0.2%Max
Arsenic 4ppm MAX ---
Ca 1.5% MAX --- 0.5%Max
Chloride 0.1% MAX ---
Sulfate 0.5% MAX ---
Color of solution B3 MAX ---
E. coli Conform ---
Application
Industry areas: Flame retardant
Medicine area: mainly used in pharmaceutical, as antacid or API.Package
25kg/bag, 12mt per 20GP container
Safety on transportation
Always refer to MSDS.
Storage and handling
Keep tightly closed, store in a cool dry place.Please refer to the Materials Safety Data Sheet (MSDS) for the handling methods.