Sodium acid pyrophosphate (SAPP),China price supplier

                  sodium acid pyrophosphate (SAPP)
Chemical formula:Na2H2P2O7
CAS Number:7758-16-9
Standard executed:Nantional standard(Tech Grade)HG 2928-1999(Food Grade)
Packing and storage     In 25kg     50kg     1000kg net bags     store at a cool     dry and well ventilated place.
Specifications:
1.Tech Grade:
Appearance:White powder
Main content:95% min
P2O5:63%-64% min
PH value of 15 solution:3.5-4.5
Water insoluble:1.0% max
Loss on ignition     0.5% max
2.Food grade
Aappearance: White Powder
Main content:95% min
P2O5:63%-65% min
PH value of 1% solution:3.5-4.5
Water insoluble:1.0% max
Heavy metals:15ppm max
Fluoride:50ppm max
Arsenic:3ppm max
Loss on ignition:0.5% max
3.FCC-IV
Appearance:White powder
Main content:95% min
P2O5:63%-645%min
PH value:3.5-4.5
Water insoluble:1.0% max
Heavy metals:15ppm max
Fluoride:50ppm max
Arsenic:3ppm max
Lead pb:2ppm max
Loss on ignition:0.5% max
Rate of Reaction:40+-2