.jpg) CAS No.: [ CAS 1309-37-1 ]
Molecular formula: Fe2O3
Molecular weight: 159.69
Property: dark red powder; insoluble in water; melting point: 1550℃.
Uses: Used in ink, rubber industry as catalytic agent and polishing agent
Enterprise standard: Factory standard
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Ordinal
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The　examination iterm
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Factory standard
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|
1
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Fe2O3（Content）
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≥99.0%
|
|
2
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(Insolubles in HCl)
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≤0.02%
|
|
3
|
（Cl-）(chloride)
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≤0.15%
|
|
4
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(Insolubles in water)
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≤0.20%
|
|
5
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(以SO42-计)(Sulphae)
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≤0.10%
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|
6
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Heavy metal（Cu）
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≤0.05%
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|
7
|
SiO2
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≤0.05%
|
|
8
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P2O5
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≤0.06%
|
|
9
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（Loose piled density)
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0.35-0.40
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Notes:the product should be stored in seal and dry place to avoid mixing with oxidizing agent
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