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Sodium Pyrophosphate, Technical Grade

Molecular formula: Na4P2O7/Na4P2O7.10H2O

Molecular weight: 265.90/446.06

CAS No .: 7722-88-5 / 13472-36-1

H.S CODE: 2835.3900 30

Use: anhydrous sodium pyrophosphate is used as chelating agent in electroplating, rust and scale remover, wool degreaser, dyeing and scouring auxiliary, detergent ingredient, toothpaste ingredient; in manufacture of other pyroPhosphate salts.

Sodium pyrophosphate decahydrate is used as water softener, scale remover, sequestrant, dispersing agent, dyeing and scouring auxiliary, etc.

Product name

Sodium Pyrophosphate

Grade

Technical Grade

Test method

GB

GB

Type

Anhydrous

Decahydrate

Assay

96.5%min

98.0%min

P2O5

51.50%min

-

Heavy metal

0.001%max

0.001%max

pH

9.9-10.70

9.9-1.07

Whiteness

90 min

90 min

Water-insoluble substances

0.02%max

0.10%max

Loss on ignition

0.50%

38-42%

Packaging: 50lb plastic woven bag or paper bag, net weight 10Kg or 25Kg; 2,000lb plastic woven bag, net weight 1,000Kg.

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