Project Description
PRODUCT SPECIFICATIONS
|
PRODUCT |
Pharmaceutical Grade Magnesium Hydroxide HD ~ USP |
|
CAS # |
1309-42-8 |
|
SYNONYM |
Brucite; Magnesia magma; Magnesium hydrate; Milk of magnesia; Magnesium hydroxide (Mg(OH)2); Magnesium hydroxide |
|
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 |
2.00% max |
|
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 |
|
BULK DENSITY (UNTAPPED) |
HD7 – 0.40 – 0.65 g/cc |
|
BULK DENSITY (UNTAPPED) |
HD9 – 0.60 – 0.80 g/cc |
|
BULK DENSITY (UNTAPPED) |
HD12 – max 1.10 g/cc |
|
TAPPED DENSITY (1000 TAPS) |
HD5 – 0.40 – 0.60 g/cc |
|
TAPPED DENSITY (1000 TAPS) |
HD7 – 0.61 – 0.80 g/cc |
|
TAPPED DENSITY (1000 TAPS) |
HD9 – 0.81 – 1.00 g/cc |
|
TAPPED DENSITY (1000 TAPS) |
HD12 – 1.01 – 1.25 g/cc |
|
PARTICLE SIZE: PASSES 325 MESH (WET SIEVE) |
HD5 – 95.0% min |
|
PARTICLE SIZE: PASSES 325 MESH (WET SIEVE) |
HD7 – 95.0% min |
|
PARTICLE SIZE: PASSES 325 MESH (WET SIEVE) |
HD9 – 95.0% min |
|
PARTICLE SIZE: PASSES 325 MESH (WET SIEVE) |
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, |
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