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Active Pharmaceutical Magnesium Oxide PHRA50

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Product Description

PRODUCT

Active Pharmaceutical Magnesium Oxide PHRA50

CAS #

1309-48-4

SYNONYM

Magnesium Oxide; Magnesium oxide (MgO); Magnesium oxide (CI 77711)

FORMULA

MgO

PRODUCT TYPE

Inorganic

Typical Product Specifications

MAGNESIUM OXIDE AS MGO (IGNITED BASIS)

96.0 - 100.5%

IDENTIFICATION

positive test for magnesium

LOSS ON IGNITION

10.0% max

FREE ALKALI

2 ml

SOLUBLE SALTS

2% max

ACID INSOLUBLE SUBSTANCES

0.1% max

CALCIUM AS CA

1.10% max

HEAVY METALS, AS PB

20 ppm max

IRON AS FE

0.05% max

LEAD AS PB

4 ppm max

ARSENIC, AS AS

3 ppm max

CHLORIDE AS CL

0.1% max

SULPHATE AS SO4

0.50% max

BULK DENSITY, TAPPED

0.35 - 0.55 gr/cc

SURFACE AREA (BET)

40 - 70 m2/gr

PARTICLE SIZE: PASSES 325 MESH (WET SIEVE)

99.0% min

MELTING POINT

2800 c

INSOLUBILITY

in alcohol

ODOR

wh. powd. or cryst., odorless

MOLECULAR WEIGHT

40.31

SOLUBILITY

dil. acids, ammonium salt solns.

BOILING POINT

3600 c

DENSITY

3.65-3.75

VERY SOLUBLE

in water

NOTES

An active magnesia for use in the manufacture of rubber and plastic items for medical purposes as well as for mineral supplements, as food additive for color retention and pH modification and the production of pharmaceutical grade magnesium derivatives. PHRA50 meets the requirements of US Pharmacopoeia (32nd Edition) NF 27/.

Use: ABSORBENT, BUFFERING, OPACIFYING

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