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Molecular formula: (NH4)3PO4·3H2O
Molecular weight: 203.13
Properties: colorless transparent film or dimond crystal. Easily soluble in water, slightly soluble in dilute ammonium hydroxide, insoluble in acetone, alcohol and ether.
Uses: as analytical reagent, water softener, fire-proofing agent and accelerating germination agent.
Standard:
| Specifications/item |
AR
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CP
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Industrial high purity
|
|
Assay[(NH4)3PO4·3H2O] /%
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≥98.0
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≥95.0
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≥94.0
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Clarity test
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Qualified
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Qualified
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－
|
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Water insoluble matter/%
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≤0.005
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≤0.01
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－
|
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Chloride(Cl) /%
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≤0.001
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≤0.002
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≤0.002
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|
Nitrate(NO3) /%
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≤0.000 5
|
≤0.002
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－
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Sulfur compound(SO4) /%
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≤0.01
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≤0.02
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－
|
|
Arsenic (As) /%
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≤0.000 1
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≤0.0003
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≤0.000 3
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Iron (Fe) /%
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≤0.001
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≤0.003
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－
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Alkali metal(phosphate) /%
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≤0.1
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≤0.3
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－
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Heavy metal (Pb) /%
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≤0.001
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≤0.002
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≤0.002
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Packing: Plastic woven bag lined with plastic bag, kraft bag, carton or fiber drum, net weight is 25kg.
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