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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.
Appearance White fine powder
Boiling point,℃ 100
Melting point,℃ 350
Solubility Slight soluble in water, ethanol & other organic solvents.
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 ---
Industry areas: Flame retardantMedicine area: mainly used in pharmaceutical, as antacid or API.
25kg/bag, 12mt per 20GP container
Safety on transportation
Always refer to MSDS.
Storage and handlingKeep tightly closed, store in a cool dry place.
Please refer to the Materials Safety Data Sheet (MSDS) for the handling methods.