trisodium phosphate dodecahydrate

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trisodium phosphate dodecahydrate
Posting date : Sep 15, 2011
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28-
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Molecular formula: Na3PO4.12H2O Molecular weight: 380.12 Properties: Colourless or white crystal, relative density is 1.62, melting point is 73.3 to 76.7 centigrade. It is soluble in water and insoluble in ethanol and carbon bisulfide, its aqueous solution shows alkaline and harms to skin. Heat it up to 100 centigrade, loses 11 crystal waters and becomes sodium phosphate monohydrate. Keep on heating up to 212 centigrade, it becomes sodium phosphate anhydrous . It is easy to airslake in the dry air. Specification: items unit standard technical grade food grade Na3PO4.12H2O %≥ 98.00 98.00 Methyl orange basicity(Na2O) %≥ 16.0-19.0 16.5-19.0 Chlorid (Cl-) %≤ 0.4 0.3 As %≤ -- 0.0003 Heavy metal (Pb) %≤ -- 0.002 Fluorid (F) %≤ 0.01 0.001 Sulfate (SO42-) %≤ 0.5 0.5 Water insolubles %≤ 0.1 0.1 price information :USD573/mt FOB tianjin delivery time :in 25 days packing :in 25kg plastic woven bags terms of payment :L/C or t/t

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