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Sodium Triphosphate, Food Grade

Molecular formula: Na5P3O10

Molecular weight: 367.86

CAS7758-29-4

H.S CODE: 2835.3100

INS 450(i) EEC NO: E450(c)

Use: Food additive.

Product name

Sodium Triphosphate

Test method

QB1034-91 or
FCC IV

Type

Standard values

White powder

White Granules

Assay (STPP)

95% min

95% min

95% min

P2O5

57.0 min

57% min

57% min

Chloride

0.025% max

0.025% max

0.0020% max

Sulfate

0.4% max

0.36% max

0.36% max

Heavy metal

0.001% max

0.001% max

0.001% max

As

0.0003% max

0.0002% max

0.0002% max

Fluoride

0.003% max

0.003% max

0.002% max

Pb

0.0002% max

0.0002% max

0.0002% max

pH

9.5-10

9.6-9.9

9.6-9.9

Whiteness

85% min

90 min

90 min

Water-insoluble substances

0.05% max

0.03% max

0.01% min

Apparent density

-

0.65-0.72 g/cm3

0.58-0.65 g/cm3

Particle size (through 20 mesh sieve)

-

100%

100%

Particle size (through 60 mesh sieve)

-

100%

20%

Particle size (through 100 mesh sieve)

-

80%

10%

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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