Sodium Acid Pyrophosphate SAPP( ANHYDROUS) Executive Standard: HG2928-1999 Molecular Formula: Na2H2P2O7 Character: It is white power. soluble in water, but insoluble in alcohol. solubility is 32.5% at 100°C. Package: 25kgs woven bag lined with plastic bag, according to the customers demand , Stored at draughty dry places.. Usage: Used as buffer, leaven, quality modifier, ferment agent, emulsifier, nutriment, adhesive and preservative in foods. Performed Specifications: Specifications Food GradeMain contents % ≥ 96.0Whiteness % ≥ 90Water insoluble % ≤ 0.1PH Value of 1% water solution 3.5-4.5Bulk density g/cm3 0.85-1.15Arsenic, as As % ≤ 0.0001Heavy metals, as Pb % ≤ 0.001Fluoride, as F % ≤ 0.001