Sodium Hydrogen Phosphate

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Sodium Hydrogen Phosphate
Posting date : Dec 08, 2013
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Introduction: Molecular Formula:Na2HPO4 Molecular Weight:358.14 CAS NO.:7558-79-4 Standard:HG/T2965-2000(T.G),HG2920-2000(F.G) Properties: White powder, the melting point is 190 centigrade. It is soluble in water showing acidity. It decompounds sodium pyrophosphate anhydrous at 225-250 centigrade, and becomes sodium metaphosphate at 350-400 centigrade. It is slightly hygroscopic. Usage:For boiler water treatment, electroplating, leather, BeiFen,fuel additives,detergent, mica tulameen close, acidic slow agent etc, also be preparing sodium hexametaphosphate and polycondensation chromate salt of raw material Standard: Index Industrial Grade Food grade Main content %≥ 97.0 98.0 P2O5 %≥ 19.2 19.4 pH of 1% water solution 8.8-9.2 9.0-9.4 Chloride, as Cl % ≤ 0.05 0.014 Sulfate, as SO4 % ≤ 0.7 0.25 Heavy metal, as Pb % ≤ - 0.001 Arsenic, as As % ≤ 0.005 0.0003 Fluoride, as F % ≤ 0.05 0.002 Water insoluble % ≤ 0.10 0.05

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