Magnesium Oxide DC USP
Quantity
Unit
CAS #
1309-48-4
PRODUCT
SYNONYM
Magnesia; Periclase; Magnesium oxide (MgO); Magnesium oxide (CI 77711)
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FORMULA
MgO
IRON
No more than 500 ppm
IDENTIFICATION
By reaction of Magnesium
BULK DENSITY
15 grams occupies a volume of 15 ml
CALCIUM
No more than 1.1% [w/w]
FREE ALKALI & SOLUBLE SALTS
No more than 2%
DESCRIPTION
Heavy, white, odorless granules
HEAVY METALS
No more than 20 ppm
ARSENIC
No more than 1 ppm
ASSAY
No less than 96.0 % & No more than 100.5% of MgO [Ignited Substance]
SOLUBILITY
Practically insoluble in water, dissolves in dilute acids with at most slight effervesence
PATHOGENS
Absent
LOSS ON IGNITION
Not more than 10 % (w/w)
MICROBIAL TEST - TBC
No more than 1000 CFU/g
MICROBIAL TEST - TFC
No more than 100 CFU/g
PARTICLE SIZE - 30 MESH
100% pass (seive analysis)
PARTICLE SIZE - 60 MESH
No less than 90% retain (seive analysis)
ACID INSOLUBLE SUBSTANCES
No more than 0.1%
INSOLUBILITY
in alcohol
ODOR
wh. powd. or cryst., odorless
MELTING POINT
2800 c
MOLECULAR WEIGHT
40.31
BOILING POINT
3600 c
DENSITY
3.65-3.75
VERY SOLUBLE
in water
NOTES
Use: ABSORBENT, BUFFERING, OPACIFYING
CLASS
Inorganic Chemicals: Nitrates, Phosphates, Oxides & more, Magnesium Compounds
FUNCTIONS
Catalyst
INDUSTRY
Nutrition, Pharmaceutical
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