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Melting point 1340 ° C
Density 2.536g/cm3 (Temp: 17.5 ° C)
Vapor pressure 0Paat20 ℃
Storage conditions Inertatmosphere, RoomTemperature
Solubility H2O: slightly soluble (lit.)
Form Powder
Color White
PH value 10.95 (1mMsolution); 11.71 (10mMsolution); 12.12 (100mMsolution)
Odor at 100.00 ± 2% Odorless
Soluble in water. Insolubleinethanolandcarbondismulfide
Sensitivity Hygroscopic
Merck148662
InchIInChI=1S/3Na. H3O4P/c;;; 1-5 (2,3) 4/h;;; (H3,1,2,3,4)/q3 *+1/ P-3
InchiKeyRYFMWSXOAZQYPI-UHFFAOY
SA KSMILES [Na+] [Na+] [Na+]. P ([O -]) ([O -]) ([O -])=O
CAS Database 7601-54-9 (CASDataBaseReference)
EPA Chemical Substance Information Trisodiumphotosphate (7601-54-9)
Used as a water softener and detergent in industries such as chemical, textile, printing and dyeing, papermaking, and power generation, as well as a boiler scale inhibitor, a water softener in paper dyeing, a pH buffer for producing adhesive for waxed paper, a fixing agent for printing and dyeing, a mercerizing enhancer for fabric Chemicalbook, and an anti embrittlement agent for wire making. The metallurgical industry is used for chemical degreasing, decontamination, and as an excellent promoter in photographic development solutions. Teeth cleaning and bottle detergent. A coagulant for rubber milk. Sugar juice purifier.
| Specifications | Superior quality | First-grade | Qualified products |
| Trisodium Phosphate(as Na3PO4·12H2O) % ≥ | 98.5 | 98.0 | 95.0 |
| Sulfate( as SO4)% ≤ | 0.50 | 0.50 | 0.80 |
| Chloride(as Cl)% ≤ | 0.30 | 0.40 | 0.50 |
| Water insoluble matter % ≤ | 0.05 | 0.10 | 0.30 |
| methyl orange alkalinity(as Na2O) | 16.5-19.0 | 16-09.0 | 15.5-19.0 |
| Iron (Fe) % ≤ | 0.01 | 0.01 | 0.01 |
| Arsenic (As) % ≤ | 0.005 | 0.005 | 0.05 |
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