Sodium pyrophosphate decahydrate
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Sodium pyrophosphate decahydrate
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CAS No:
13472-36-1
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Formula:
H4O7P2.10H2O.4Na
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Chemical Name:
Sodium pyrophosphate decahydrate
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Synonyms:
Diphosphoric acid,sodium salt,hydrate (1:4:10);Pyrophosphoric acid,tetrasodium salt,decahydrate;Diphosphoric acid,tetrasodium salt,decahydrate;Tetrasodium pyrophosphate decahydrate;Sodium pyrophosphate (Na4P2O7) decahydrate;Sodium pyrophosphate decahydrate;Sodium diphosphate (Na4P2O7) decahydrate;14187-36-1
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CAS No:
Characteristics
146
0.29820
White Solid
1.82
80°C
93.8°C
1.447
H2O: 62 g/L (20 ºC)
Store at +5°C to +30°C.
Safety Information
Ⅱ
1759
3
36/37/38
26-36
UX7350000
Xi
Stable. Incompatible with strong oxidizing agents.
P261-P305 + P351 + P338
H315-H319-H335
Sodium pyrophosphate decahydrate Use and Manufacturing
The anhydrous sodium pyrophosphate method first neutralizes phosphoric acid and soda ash to form disodium hydrogen phosphate, which is spray-dried, then melt polymerized, and cooled to obtain anhydrous sodium pyrophosphate. Add anhydrous sodium pyrophosphate to the dissolution tank and add water to dissolve at 65～75℃ to control the concentration of the solution at 19～21°Bé. It is filtered with a static self-flow filter, and the filtrate is sent to a cooling crystallizer for cooling crystallization and centrifugal separation to obtain a crystalline sodium pyrophosphate product. Its H3PO4+Na2CO3→Na2HPO4+H2O+CO2↑2Na2HPO4[△]→Na4P2O7+H2ONa4P2O7+10H2O→Na4P2O7?10H2O
It is used in fusion matrix.
Price Analysis
- Data: 2026-07-25
- Price: 8433.33Yuan/ton
- Change: 0
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Sodium pyrophosphate decahydrate
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