Question

what is the equivalent weight of tetra sodium pyro phosphate

Answer 1

Tetrasodium pyrophosphate appears as odorless, white powder or granules. mp: 995°C. Density: 2.53 g/cm3. Solubility in water: 3.16 g/100 mL (cold water); 40.26 g/100 mL boiling water. Used as a wool de-fatting agent, in bleaching operations, as a food additive. The related substance tetrasodium pyrophosphate decahydrate (Na4P2O7*10H2O) occurs as colorless transparent crystals. Loses its water when heated to 93.8°C.

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