Tspp (tetra sodium pyrophosphate) Chemical formula: na3po4. Nh2o (n=0, 12) Molecular weight: 380.14 Standard executedú¦hg/t2517-93 Product name : tetra sodium pyrophosphate Model : food grade Molecular formula: na4p2o7 Molecular weight:265.90 2.Appearance and properties: White powder, easy soluble in water, no soluble in ethanol. The water solution is alkaline. 3.Usage: Used as improving agent in food industy, ph regulating agent, metal ion complex agent, emulsion, dispersing agent and adhesivegent. Applied in the processing of meat and aquatic products in order to hold water, keep the meat fresh and tender, stabilize the natural color and prevent fat from putridity. Also used in the production of yeast powder and cheese etc. 4.Specificationgs Na4p2o7 96.5%min Substances not dissolved in water 0.20%max Ph value(1% of aqueous solution) 9.9-10.7 Ortho-phosphates --- Arsenic(as) 0.0003%max Heavy metal(pb) 0.001%max Fluorides(f) 0.005%max Tspp (tetra sodium pyrophosphate) Packing: in 25 kgs woven or kraft paper bags with a pe bag inner.