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Tri-Sodium Phosphate Dodecahydrate-E339(iii)

Chemical formula: Na3PO4. 12H2O

Molecular weight: 380.12

CAS Number: 10101-89-0

Standard: GB25565-2010

Other Name: Sodium Phosphate, Tribasic

INS: 339(iii)



Properties

White or colorless crystals, efflorescent in air, easily soluble in water but not in organic solution. Its water solution is alkaline. PH value of 1% solution is 12.1, relative density at 1.62g/cm3, melting point is 73.4 .


Application

Antimicrobial; buffer; emulsifier; nutrient


Package

Packing :25 kgs bag,1000 kgs,1100 kgs, 1200 kgs jumbo bag

Loading:25 kgs on pallet: 24MT/20’FCL; Un-palletized:25MT/20’FCL

Jumbo bag :20 bags /20’FCL ;


Specifications




     No     

Specifications

    National Standard     

    Ronghong Standard     

Assay    % ≥

97.0

98 Min

P2O5   %≥

/

18.3

Sodium oxide, as Na2O

/

15.5-19

Sulfate, as SO4 % ≤

/

0.5

5

Heavy metal, as Pb% ≤

0.001

0.0008

Arsenic, as As% ≤

0.0003

0.0003 Max

Fluoride as F% ≤

0.005

0.002 Max

Water insoluble% ≤

0.2

0.1

9

Pb % ≤

0.0004

0.0004 Max

10

Cl % ≤

/

0.001

11

Fe % ≤

/

0.0002

12

PH(10g/L solution)

11.5—12.5

11.5—12.5

13

Loss on drying % ≤

45--57

45--57