Active Pharmaceutical Magnesium Oxide PHRA50
Quantity
Unit
CAS #
1309-48-4
PRODUCT
SYNONYM
Magnesium Oxide; Magnesium oxide (MgO); Magnesium oxide (CI 77711)
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FORMULA
MgO
PRODUCT TYPE
Inorganic
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
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
CLASS
Specialty Chemicals, Inorganic Chemicals: Nitrates, Phosphates, Oxides & more, Magnesium Compounds
INDUSTRY
Industrial, Pharmaceutical, Plastics, Rubber
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