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Pharmaceutical Grade Magnesium Hydroxide HD ~ USP

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Product Description

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

Product Specifications

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,

For more information on Magnesium Hydroxide CAS 1309-42-8:

FUNCTIONS

INDUSTRY

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