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Di Sodium Phosphate Dodecahydrate

Molecular formula: Na2HPO4-12H2O

Molecular weight: 358.14

CAS Number: 10039-32-4

Other Name: Disodium Monohydrogen Phosphate

National Standard:HG-T2965-2009


Properties

White or colorless crystalline free flowing solid, efflorescent in air, easily soluble in water, but insoluble in alcohol, its water solution is slightly alkaline, relative density at 1.52 g/cm3, melting point at 35


Application

Used as a fire-preventio agent for fabric, timber, and paper, also as water softening agent for boiler,


Package

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

Loading:25 kgs on pallet: 22MT/20’FCL; Un-palletized:25MT/20’FCL

Jumbo bag :20 bags /20’FCL ;


Specifications



No

Specifications

National Standard

Ronghong Standard

1

Assay    %≥

97.0

98

2

Phosphorus pentoxide, %≥

/

19.2

3

PH (10g/L solution)

8.8-9.2

8.8-9.2

4

Sulfate, as SO4 %

0.7

0.5

5

Heavy metals, as Pb %

/

0.003

6

Arsenic, as As %

0.005

0.008

7

Fluoride, as F %

0.05

0.01

8

Water insoluble %

0.05

0.01

9

Cl %

/

0.2

10

Pb %

/

0.001

11

Fe %

0.05

0.01

12

Loss on drying %

/

61