Classification: steType: Sodium PyrosteCAS No.: 7722-88-5Other Names: tetrasodium pyroste, TSPPMF: Na4P2O7EINECS No.: 231-767-1Grade Standard: Food GradePurity: 96.5%Appearance: white powderApplication: Humectants , buffering agentshelf time: 24 monthsstandard: FCC