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Sodium pyrophosphate

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Sodium pyrophosphate

CAS No:7722-88-5
Einecs No:231-767-1
Specification:97.5% -100.5%
Routine Packing:25kg/bag
Place of origin:China
QC:Haccp, Kosher, Hala
Payment terms:T/T or L/C
Port of dispapch:Shanghai,Tianjin,Qingdao
Function:type7
Applications:type14

InquiryDownload

- Item
- Specification
- Name
- Sodium pyrophosphate
- Assay
- 97.5% -100.5%
- Chemical Formula
- Na₄P₂O₇
- Insoluble in water %
- 0.02
- PH (1%)
- 10.4
- Fluor (AS F)
- <10 ppm
- Residue on ignition %
- 0.1
- Orthophosphate
- Approved
- Heavy metal(AS Pb)
- <10 ppm
- Arsenic(AS AS)
- <2 ppm

Character:

White powder or crystal. Relative density is 2.534, melting point 880 , boiling point 93.8 .when the water solubility of 100g for 6.23, its aqueous solution is alkaline; not soluble in alcohol. Aqueous solution at 70 , the following is still stable. It is boiling and will become disodium hydrogen phosphate. In dry air, it lose crystal water at 100 . and it is easy to absorb moisture in the air and deliquescence. alkaline earth metal ions can generate complex with it

Uses:

Electroplating industry;The formation of complexes with iron. Wool and wool textile industry as a degreasing agent and hair bleaching agent. Paper industry for bleaching paper and plant fibers. Printing and dyeing industry as dyeing, bleaching fine when the additive.Chemical industry as a toothpaste additive ,it is used with DCP to play a stabilizing effect on the formation of colloid, And can be used for production of synthetic detergent and shampoo ointment products. Water Department .