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Tetra Sodium Pyrophosphate(TSPP)

Molecular formula: Na4P2O7

Molecular Weight: 265.9

Standard executed: HG T 2968-2009 

CAS Number: 7722-88-5


Properties

White powder; Soluble in water but insoluble in ethanol; Relative density 2.45g/cm3and melting point 890; Deliquescent in the open air. Its aqueous solution shows weak alkalinity and is stable at 70 but will be hydrolyzed into di-sodium phosphate when boiled .


Application

Applied in industries of detergents as detergent auxiliary, paper production to bleach and electroplating;


Package

Packing :25 kgs bag,

Loading:25 kgs on pallet: 10 MT/20’FCL; Un-palletized:17MT/20’FCL

Jumbo bag :20 bags /20’FCL ;


Specifications



    NO     

Specifications

Industrial Grade

 1

 Appearance

    white powder or granular    

 2

Assay (as Na4P2O7 )%≥

96.5

 3

P2O5 %≥

51.5

    4 

Ortho Phosphates

pass

    5 

PH Value

9.9-10.7

    6 

Water Insoluble matter % ≤

0.1

    7 

Size   (through 60mesh sieve)    

90.0