|
质量指标
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Specification
|
GB 25568-2010
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|
含量（以干基计） ≥%
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Assay(Na2HPO4)
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98.0
|
|
砷（As） ≤%
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As
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0.0003
|
|
重金属（以Pb计） ≤%
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Heavy Metal(Pb)
|
0.001
|
|
铅（Pb） ≤%
|
Pb
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0.0004
|
|
氟化物（以F计） ≤%
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Fluorides
|
0.005
|
|
水不溶物 ≤%
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Insoluble In Water
|
0.2
|
|
干燥减量 ≤%
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Loss
On
Drying
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Na2HPO4
|
5.0
|
|
Na2HPO4·2H2O
|
18.0~22.0
|
|
Na2HPO4·12H2O
|
61.0
|
1、Chemical Name: DISODIUM PHOSPHATE
2、Molecular Formula:, Na2HPO4, Na2HPO4·2H2O, Na2HPO4·12H2O
3、Molecular Weight: Anhydrous: 141.96; Dihydrate: 177.96;Dodecahydrate: 357.96
4、CAS: Anhydrous: 7558-79-4; Dihydrate: 10028-24-7; Dodecahydrate: 10039-32-4
5、Character: It is white or colorless rhombic crystalline or prismatic crystal. It’s easily soluble in water, but insoluble in ethanol. The relative density is 1.63 and melting point is 34.6℃. If heated to 180℃, it may lose crystal water and convert to anhydrous.
6、Usage: In food industry, it is used as agent for baking to avoid oxidation stain and as emulsifier in dairy product to prevent egg white from solidification. It is also used as emulsifier and chelating agent for solid drinks.
7、Packing: It is packed with polyethylene bag as liner and a compound plastic woven bag as the outer layer. The net weight of each bag is 25kg.
8、Storage and Transport: It should be stored in a dry and ventilating warehouse, kept away from moisture and heat. Furthermore, it should be stored separately from poisonous substances; unload with care so as to avoid damage to packing.
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