Hongjing

23

2019

-

09

STPP

　　STPP

　　Packing:In steel drum or 1mt big bag.Any special requirement can be reached by consultation.

　　Appearance and Use: Sodium tripolyhosphate is a kind of chainlike condensation phosphate with white grain or powder.It is used as main auxiliary of synthetic detergent.Industry water softener,

　　Dispersant in paint and kaolin,preservative agent for paper making.

　　Industrial trisodium phosphate is used as water softener in metallurgy, chemical industry, textile, printing, paper-making, mechanical and electrical industries, clear boiler tube and detergent; metal rust inhibitor, desiccant of dye intermediates, purifier of sugar juice, fixing agent in printing and dyeing, mercerizing agent of fabrics, anti-brittleness agent of thread-making. The enamel industry is used as a cosolvent. Leather industry as degreaser; excellent accelerator in photographic development; rubber latex coagulant; nutrients for biological treatment of sewage.

　　Implementation criteria: HG/T 2517-2009

　　1．Appearance of white or yellowish crystals.

　　2．The chemical composition of industrial trisodium phosphate shall conform to the following table:

project

index

Sodium phosphate three　　　　　　w/%    

98.0

sulfate　　　　　　　w/%　　≤

0.5

chloride　　　　　　　w/%　　≤

0.4

arsenic　　　　　　　　　w/%　　≤

0.005

iron　　　　　　　　　w/%　　≤

0.01

Insignificant　　　　　　　w/　　　≤

0.1

PH value（10g/L solution）　w/%

115-12.5

 

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