1.Chemical Name:Magnesium Oxide
2.Formula:MgO
3.CAS:1309-48-4
4.Molecular weight:40.3
5.Properties:
Magnesium Oxide occurs as a very bulky, white powder known as Light Magnesium Oxide or as a relatively dense,white powder known as Heavy Magnesium Oxide. Five grams of Light Magnesium Oxide occupies a volume of approximately 40 to 50 mL, while 5 g of Heavy Magnesium Oxide occupies a volume of approximately 10 to 20 mL. It is soluble in dilute acids, practically insoluble in water, and insoluble in alcohol.
6.Function:pH control; neutralizer; anticaking agent; freeflowing agent; firming agent.
7.Quality Standard:
Index
USP32
Appearance
Very bulky,white powder or relatively dense, white powder or granulated powder
Solubility
Practically insoluble in water, soluble in dilute acids, insoluble in alcohol.
Identification
Must meet
ASSAY(on ignited basis)
96.0 – 100.5%
a) Free alkali b) Soluble salt
A) NMT 2 ml acid consumed B) NMT 2%
Acid Insoluble Substances
NMT 0.1 %
Calcium
NMT 1.1 %
Heavy Metals
NMT 20 ppm
Iron
NMT 0.05 %
Loss on Ignition
NMT 10.0%
Tapped Density
0.25-0.5g/ml
Particle Size
Minimum 95% passes through 325 mesh (<45 micron)
8. Packing: PE bag lined composite plastic woven bag, Net wt 20KG.
