Formula: H3PO4 Molecular weight: 98 Executive Standard: GB2091-1992 phosphate industry standard Index name Index (First grade 85%) Heavy metals (as Pb) /% ≤ 0.001 Appearance colorless or slightly yellow viscous liquid iron (Fe ) ≤ 0.002 Arsenic (As) ≤ 0.0001 Chloride (as Cl ion meter) /% ≤ 0.0005 phosphate (sulfate ions meter) /% ≤ 0.003 phosphoric acid (H3PO4) /% ≥ 85.0 Whiteness ≤ 20 Appearance: colorless transparent viscous liquid. Specific gravity 1.70, soluble in water and heat, heated to high temperatures and dehydration into metaphosphoric acid pyrophosphate, prolonged exposure to cold is generated crystals, corrosive, hygroscopic, sealed. Uses: mainly used for phosphate industry, electroplating, polishing industry, sugar industry, compound fertilizers. Packing: plastic drum, net weight 35 kg.