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Molecular formula: K3PO4·3H2O
Molecular weight: 266.31
Properties: White crystal. Easily soluble in water and insoluble in ethyl alcohol. Relative density is 2.564 and melting point is 1340℃.
Uses: In boiler water treatment, gasoline purification, liquid detergent, edible emulsifier, medicine, fertilizer, and etc. It can also be used as analytical reagent.
Standard:
| Specifications/item |
AR
|
CP
|
|
Assay(K3PO4·3H2O) /%
|
≥99.0
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≥98.0
|
|
Clarity test
|
Qualified
|
Qualified
|
|
Free alkali
|
Qualified
|
Qualified
|
|
Dipotassium
|
Qualified
|
Qualified
|
|
Chloride(Cl) /%
|
≤0.003
|
≤0.01
|
|
Sulfate(SO4) /%
|
≤0.01
|
≤0.02
|
|
Nitrogen compound(N) /%
|
≤0.001
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≤0.002
|
|
Carbonate(CO3) /%
|
Qualified
|
Qualified
|
|
Sodium (Na) /%
|
≤0.02
|
≤0.05
|
|
Iron (Fe) /%
|
≤0.002
|
≤0.004
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Arsenic (As) /%
|
≤0.000 1
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≤0.000 3
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Heavy metal (Pb) /%
|
≤0.001
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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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