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Agent grade magnesium oxide
Molecular formula:MgO ,relative molecular quality of 40.30.
The appearance is white no-form light powder, odorless and tasteless,and non-poisonous, difficult to be soluble in water and organic solvents, soluble in acid and ammonium salt, strong moistureadsorption, absorb water and carbon dioxide after exposed in the air.
Use: mainly used in agent industry, adhesive, soft magnetic material and high science & technology field.
Executive standard: GB9857--1988
Technical index:
|
index name
|
analytic pure(AR)
|
chemical pure(CP)
|
|
content of magnesium oxide%≥
|
98.0
|
97.0
|
|
clarifying testing
|
check out
|
check out
|
|
Acid insoluble%≤
|
0.01
|
0.05
|
|
content of water soluble%≤
|
0.5
|
--
|
|
weight loss by scorching%≤
|
2.0
|
30.
|
|
chloride(Cl)% ≤
|
0.01
|
0.03
|
|
sulphate(SO4)% ≤
|
0.02
|
0.10
|
|
phosphate(PO4)% ≤
|
0.003
|
0.01
|
|
total nitrogen quantity(N)%≤
|
1.5
|
--
|
|
sodium(Na)% ≤
|
0.05
|
0.10
|
|
potassium(K)% ≤
|
0.005
|
0.01
|
|
calcium (Ca)% ≤
|
0.02
|
0.10
|
|
iron(Fe)% ≤
|
0.005
|
0.01
|
|
copper(Ca)% ≤
|
0.001
|
--
|
|
zinc(Zn)% ≤
|
0.005
|
0.01
|
|
arsenic(As)% ≤
|
0.0001
|
--
|
|
barium & aluminum(Ba)% ≤
|
0.005
|
0.01
|
|
heavy metal(Ph)% ≤
|
0.003
|
0.01
|
Next product： Activated magnesium oxide