Natural Minerals > Magnesia
Caustic Calcined Magnesia
Synonym
Magnesium oxide;Magnesia; Calcined magnesia;
Magnesia clinker; Deadburned magnesite
CAS No.1309-48-4
 
Properties
MgO, molecular weight: 40.32; white powder (equal-axis crystal system); relative weight: 3.2~3.7; melting point: 2850℃; dissolve in acid and become magnesium salt; dissolvable in ammonium salt but not solvable in alkaline; slightly soluble in water and become magnesium hydroxide; namely, slightly solve in water and generate alkaline reaction; absorb carbonate and water in the air and part of it becomes magnesium hydroxide 3MgCO3·Mg(OH)2·3H2O. It’s divided into baked magnesium (800900℃) and dead-burned magnesium (15001600℃) according to the baking and burning temperature.

Specification

Symbol

Chemical Composition

Ignition loss≤

Grain Sizemm)

MgO≥

SiO 2

CaO≤

MCCM96

96

0.45

1

2

0-0.3

MCCM94

94

1

1.4

4

0-1.5

MCCM90

90

4

2

6

0-0.125

MCCM87

87

5

2

7

(acc. to customer's requirement)

PackingPlastic woven bag with plastic lining, NW: 25-50-1000kg per bag.

Application
Rubber, medical products, raw material for pottery, all kinds of filling agent for synthetic resin; catalyst, anti-fire matter, cement and semi-conductor.

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