Commodity Name |
Disodium Phosphate |
CAS No. |
93964-04-6 |
Disodium Phosphate (DSP)
1.Chemical name: Disodium Phosphate,Sodium Phosphate dibasic
2.M. F.: Na2HPO4, Na2HPO4·2H2O,Na2HPO4·12H2O
3.M. W.: Anhydrous141.98; Dihydrate: 177.96; Dodecahydrate:357.96
Molecular weight: 136.09
Properties: Colorless tetragonal crystal or white crystalline powder. Relative density 2.338. The melting point is 252.6 ºC. Soluble in water (83.5g/100ml water at 90 ºC), the aqueous solution is acidic, and the pH value of 1% potassium dihydrogen phosphate solution is 4.6. Insoluble in alcohol. It has deliquescence. When heated to 400 ºC, it is melted into a transparent liquid, and solidified into opaque glassy potassium metaphosphate after cooling.
Applications:Used as buffer and culture agent in industry; In agriculture, it is used as high efficiency phosphate and potassium compound fertilizer; Food grade as food improvement additive.
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