Pharmaceutical Magnesium Oxide Grade HA and HA5
Quantity
Unit
CAS #
1309-48-4
PRODUCT
SYNONYM
Magnesium Oxide; Magnesium oxide (MgO); Magnesium oxide (CI 77711)
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FORMULA
MgO
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 max
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
0.5 ppm max
ARSENIC, AS AS
3 ppm max
CHLORIDE AS CL
SULPHATE AS SO4
0.75% max
BULK DENSITY (UNTAPPED)
HA5 - 0.30 - 0.65 gr/cc
HA - 0.40 - 0.60 gr/cc
PARTICLE SIZE: PASSES 325 MESH (WET SIEVE)
HA5 - 99.0% min
HA - 75.0% 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
For use in the manufacture of antacid preparations and mineral supplements, and in the production of pharmaceutical grade magnesium derivatives and for use as a food additive as an anti-caking, free flowing agent, color retention agent desiccant or PH modifier. HA and HA5 meet the requirements of U.S. Pharmacopoeia (32nd Edition) NF 27.
Use: ABSORBENT, BUFFERING, OPACIFYING
CLASS
Inorganic Chemicals: Nitrates, Phosphates, Oxides & more, Magnesium Compounds
FUNCTIONS
Intermediates, Antacid, Catalyst
INDUSTRY
Pharmaceutical
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