CAS No.: 1309-48-4

light magnesium oxide

Relative molecular weight: 40.31

item	Grade A	Grade B	Superior quality
magnesia, ≥, %	93	92	95
Loss in ignition, ≤, %	4	5	3
calcium oxide, ≤, %	1.2	2.0	1.0
Hydrochloric acid insolubles, ≤, %	0.2	-	0.1
chloride, ≤, %	0.3	-	0.07
sulphate (SO4²¯), ≤, %	0.3	0.4	0.2
Iron salt(Fe), ≤, %	0.06	0.10	0.05
manganese salt(Mn), ≤%	0.01	-	0.003
Screen residue(40 holes/cm), ≤, %	0.05	0.05	0.005
Screen residue(80sholes/cm), ≤%	-	-	0.1
Apparent specific volume (ml/g), ≥, %	6	5

Use: As the vulcanization activator and active filler in the rubber industry,

also is the polyphenylene oxide synthetic catalyst, the bond, the padding of the paint and of the paper.

In addition, it can be used as the raw material that makes the ceramic, the enamel and the firebrick,

besides used in the medicine, dye, glass etc. industry.

Quality specification (GB9004-88)