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Trisodium Phosphate CAS#7601-54-9

Trisodium Phosphate CAS#7601-54-9

Basic Information

Strong Alkalinity for High Cleaning Efficiency:Forms a highly alkaline solution (pH ≈ 11.5), making it very effective for degreasing, cleaning, and pH adjustment applications.


Excellent Water Solubility:Readily dissolves in water at room temperature, allowing fast preparation of concentrated alkaline solutions for industrial and processing use.


Stable Hydrated Crystal Structure:Retains part of its crystallization water even at elevated temperatures, ensuring good thermal stability and reliable performance during heating and storage.


High Purity Crystalline Form:White to colorless hexagonal crystals provide consistent quality, easy handling, and suitability for precise formulation and dosing.


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product description

Product Description of Trisodium Phosphate CAS#7601-54-9

Trisodium Phosphate Dodecahydrate is white to colorless hexagonal crystals with a density of about 1.62 g/cm³. It melts near 75 °C on rapid heating and partially loses crystal water at 100 °C, retaining the last water molecule even at higher ignition temperatures. Freely soluble in water with solubility of around 28 g/100 mL at 20 °C, forming a strongly alkaline solution; 0.1 M aqueous solution pH approx 11.5. Insoluble in alcohol, widely applied where strong alkalinity and good water solubility are required.


Product Application of Trisodium Phosphate CAS#7601-54-9

Trisodium Phosphate is an inorganic salt, widely used as high-efficiency industrial detergent, metal surface treatment agent and floor cleaner, featuring strong cleaning and degreasing performance. It also serves as a water softener and boiler water treatment chemical, and acts as a paint remover for surface preparation. Besides, it is applied in photographic developers, leather tanning, papermaking and sugar clarification, with versatile uses across various industrial processes.

Product Information

Parameters


Melting point1340°C
density2.536 g/cm3(Temp: 17.5 °C)
vapor pressure0Pa at 20℃
storage temp.Inert atmosphere,Room Temperature
solubilityH2O: slightly soluble(lit.)
formPowder
colorWhite
Odorat 100.00?%. odorless
PH10.95(1 mM solution);11.71(10 mM solution);12.12(100 mM solution)
Water SolubilitySoluble in water. Insoluble in ethanol and carbon disulfide.
SensitiveHygroscopic
Merck148,662
Dielectric constant1.6(Ambient)
InChIInChI=1S/3Na.H3O4P/c;;;1-5(2,3)4/h;;;(H3,1,2,3,4)/q3*+1;/p-3
InChIKeyRYFMWSXOAZQYPI-UHFFFAOYSA-K
SMILES[Na+].[Na+].[Na+].P([O-])([O-])([O-])=O
CAS DataBase Reference7601-54-9(CAS DataBase Reference)
EPA Substance Registry SystemTrisodium phosphate (7601-54-9)


Safety Information


Hazard CodesC,Xi
Risk Statements34-36/37/38
Safety Statements26-36/37/39-45-24/25
RIDADRUN 3262 8/PG 3
WGK Germany1
RTECSTC9490000
F34
TSCAYes
HazardClass8
PackingGroupIII
HS Code28352910
Hazardous Substances Data7601-54-9(Hazardous Substances Data)
ToxicityLD50 skin in rabbit: > 300mg/kg


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