.jpg) CAS No.: [ CAS 15244-10-7 ]
Molecular formula: Fe2(SO4 )3. 9H2O
Molecular weight: 561.88
Property: grey white powder or prismatic crystal or light yellow powder; slowly soluble in water, lightly soluble in alcohol and nearly insoluble in acetone and ethyl acetate.
Uses: silver analysis, sugar testing, for the preparation of dye, ink, polymerization catalyst, mordant, water purifier
Enterprise standard: Factory standard
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Ordinal
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The examination iterm
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企业标准
Factory standard
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1
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Appearance
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Grey white or light yellow powder
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2
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Fe2(SO4 )3. 9H2O
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≥99.0--101.1%
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3
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Fe
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≥19.8%
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4
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(Insolubles in water)
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≤0.01%
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5
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（Cl-)
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≤0.0005%
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6
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(NO3-）
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≤0.001%
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7
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（Fe2+)
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≤0.001%
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8
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(Cu)
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≤0.001%
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9
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(Zn)
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≤0.003%
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10
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(Mn)
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≤0.01%
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11
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(As)
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≤0.0005%
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12
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(Pb)
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≤0.001%
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Notes: the product should be stored in cool and dry place.
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