Henan Sinocean Chemical Co. Ltd.

Sodium Acid Pyrophosphate

• Category :

  Inorganic chemicals/Inorganic acids

• Synonyms :

  disodium dihydrogenpyrophosphate;Sodium Acid Pyrophosphate;Sodium pyrophosphate dibasic;Diphosphoric acid, disodium salt;Disodium Dihydrogen Pyrophosphate;Disodium Pyrophosphate;Disodium pytophosphate;SAPP;disodium phosphonato phosphate;

• CAS NO :

  7758-16-9

• EC NO :

  231-835-0

• Molecular Formula :

  Na₂H₂P₂O₇

• Molecular Weight :

  221.94

• Main Specifications :

• InChI :

  InChI=1/2Na.H4O7P2/c;;1-8(2,3)7-9(4,5)6/h;;(H2,1,2,3)(H2,4,5,6)/q2*+1;/p-4

• Product description :

  Sodium Acid Pyrophosphate (SAPP) 95%
  Chemical name:Disodium Dihydrogen Pyrophosphate、Sodium Acid Pyrophosphate
  CAS No.: 7758-16-9
  EINECS No.: 231-835-0
  Molecular formula : Na₂H₂P₂O₇
  Molecular weight : 221.95
  Physical properties: Monoclinic, white crystalline powder. Density 1.86. Practically insoluble in alcohol, soluble in water. Hydrolyzes to orthophosphate on heating in acid medium. Hygroscopic, forms hexahydrate in damp air. Decomposes to metaphosphate at above 220℃
  Quality standard:( FCC-Ⅳ、HG2928-1999)

  Name of index	FCC-Ⅳ	GB/T9983-2004
  Content (as counted by Na2H2P2O7) ≥ %	95	95
  Water Insoluble% ≤%	1.0	1.0
  PH (1% aqueous solution)	-	3.5-4.5
  Arsenic(As),ppm, ≤	3	3
  Heavy Metals (as Pb),ppm, ≤	20	15
  Fluoride(F),ppm, ≤	50	50
  Pb ppm, ≤	2	-

  Usage: Used as rapid ferment agent, quality improver in food industry. Applied to acid component of synthetic swelling agent, such as, bread, cake. Builted with other phosphates can be applied to water retention of meat product, such as canned meat, cooked ham, meat can and instant noodles.
  Packing: It is packed with ployethylene bags as liner , and a woven bag as the outer layer. The net weight of each bag is 25kg.

  Storage and transport: Stored in a dry and ventilative warehouse; Keep away from moisture moisture and poisonous substances. Handled with care.

  
   

  

• Molecular Structure :