Chemical formula: Na4P2O7
CAS Number: 7722-88-5
Standard executed: Tech grade (HG/T2968-1999)  Food grade (HG 2923-1999) 
Packing and storage:
In 25kg, 50kg, 1000kg net bags, store at a cool, dry and well ventilated place.

Specifications  Food Grade 
Appearance  White Powder 
Main content % ≥  96.5
Phosphorus pentoxide, as P2O5 % ≥51.5
Ortho Phosphate  Pass  
PH of 1% water solution 9.9 — 10.7 
Water insoluble  % ≤  0.1
Fluoride, as F   50ppm
Heavy metals, as Pb  10ppm 
Arsenic, as As   3ppm 
Loss on ignition %≤ 0.5
We can supply both industry grade and food grade TSPP
welcome to contact us at anda1002(at)gmail(dot)com