Pharmaceutical Grade Magnesium Hydroxide HD ~ USP
Quantity
Unit
CAS #
1309-42-8
PRODUCT
SYNONYM
Brucite; Magnesia magma; Magnesium hydrate; Milk of magnesia; Magnesium hydroxide (Mg(OH)2); Magnesium hydroxide
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FORMULA
Mg(OH)2
PRODUCT TYPE
Inorganic
IDENTIFICATION
Positive test for Magnesium
MAGNESIUM HYDROXIDE AS MG(OH)2
95.0 - 100.5%
MICROBIAL ENUMERATION TEST
Passes test
LOSS ON IGNITION
30.0 - 33.0% max
LOSS ON DRYING
2.00% max
FREE ALKALI
2 ml
SOLUBLE SALTS
CARBONATES
to pass effervascence test
CALCIUM AS CA
1.50% max
HEAVY METALS, AS PB
20 ppm max
LEAD AS PB
1.5 ppm max
BULK DENSITY (UNTAPPED)
HD5 - 0.25 - 0.55 g/cc
HD7 - 0.40 - 0.65 g/cc
HD9 - 0.60 - 0.80 g/cc
HD12 - max 1.10 g/cc
TAPPED DENSITY (1000 TAPS)
HD5 - 0.40 - 0.60 g/cc
HD7 - 0.61 - 0.80 g/cc
HD9 - 0.81 - 1.00 g/cc
HD12 - 1.01 - 1.25 g/cc
PARTICLE SIZE: PASSES 325 MESH (WET SIEVE)
HD5 - 95.0% min
HD7 - 95.0% min
HD9 - 95.0% min
HD12 - 90.0% min
MELTING POINT
350 c (dec.)
ODOR
odorless
MOLECULAR WEIGHT
58.33
COLOR
white amorphous powder or colorless hexagonal crystal
SOLUBILITY
soln. of ammonium salts and dilute acids
DENSITY
2.36
NOTES
Spray-dried magnesium hydroxide powders for use in the manufacture of antacid preparations and mineral supplements. Different bulk densities offer a choice of compounding possibilities for tablet and powder dosage systems.
Meets the requirements of USP32-NF27
Use: ABSORBENT,
For more information on Magnesium Hydroxide CAS 1309-42-8:
The Magnesium Hydroxide Pubchem Page
The Magnesium Hydroxide Wiki Page
CLASS
Vitamins - Nutritional Ingredients - Amino Acids, Active Pharmaceutical Ingredients (API) & Intermediates, Magnesium Compounds
FUNCTIONS
Antacid
INDUSTRY
Pharmaceutical
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