Trisodium phosphate

• CAS No:

7601-54-9

• Formula:

Na3O4P

• Chemical Name:

Trisodium phosphate

Description

Trisodium phosphate (anhydrous) is a white, granular or crystalline solid, highly soluble in water and produces a strong alkaline solution. On exposure to heat, trisodium phosphate decomposes and produces toxic and corrosive fumes including phosphorous oxides.
The major use for trisodium phosphate is as a cleaning agent, food additive, stain remover, and degreaser. Trisodium phosphate of commercial grade is often partially hydrated and ranges from anhydrous trisodium phosphate.

DryPowder; DryPowder, PelletsLargeCrystals, WetSolid; Liquid; PelletsLargeCrystals|White odourless crystals, granules or crystalline powder|COLOURLESS-TO-WHITE HYGROSCOPIC CRYSTALS.

Trisodium phosphate is a sodium phosphate.

Trisodium phosphate Basic Attributes

Molecular Weight ：163.94100

Exact Mass ：163.92300

EC Number ：231-509-8

UNII ：SX01TZO3QZ

ICSC Number ：1178

UN Number ：3262|3082

DSSTox ID ：DTXSID2035223

Color/Form ：Colorless crystals

ATC Code ：A - Alimentary tract and metabolism|B - Blood and blood forming organs

Characteristics

PSA ：96.06000

XLogP3 ：0.38600

Appearance ：DryPowder; DryPowder, PelletsLargeCrystals, WetSolid; Liquid; PelletsLargeCrystals

Density ：2.536 g/cm³ @ Temp: 17.5 °C

Melting Point ：75 °C (decomp)

Boiling Point ：158ºC at 760 mmHg

Water Solubility ：Solubility in water, g/l at 20°C: 121 (good)

Storage Conditions ：Keep containers tightly closed in a well ventilated area away from food products. Keep away from heat and water.

Toxicity ：LD50 skin in rabbit: > 300mg/kg

PH ：Between 11,5 and 12,5 (1 % solution)

Experimental Properties ：Crystallizes with 8 and 12 mols of H2O.|Colorless, trigonal crystals; MP: approx 75 °C; density: 1.62 g/cu cm; solubility: 14.4 g/100 g water at 25 °C; qualitative solubility: insoluble in ethanol /Trisodium phosphate dodecahydrate/|Trisodium phosphate tends to pick up moisture from air and form a hard cake.

Corrosivity ：When wet, mild steel or brass may be corroded by trisodium phosphate.

Trisodium phosphate Use

A water-soluble reagent widely used as a cleaning agent and often used in the formulation of various buffers. As a quality improver, it has the functions of increasing the complex metal ions, pH value, and increasing ionic strength of food, thereby improving the binding force and water holding capacity of food. China stipulates that it can be used for cheese, the maximum use amount is 5g/kg; the maximum use amount is 3.0g/kg in Western-style ham, meat, fish, shrimp and crab; the maximum use amount is 0.5g in canned food, juice, beverages and dairy products /k. Used as analytical reagent and water softener, and also used in the purification of sugar; used as water softener and detergent, boiler scale inhibitor, color fixing agent during printing and dyeing, mercerizing enhancer for fabrics, metal corrosion inhibitor or rust inhibitor . Used as flux and decolorizing agent in enamel industry. It is used as a degreasing agent and degumming agent in the leather industry. Used as water softener, boiler descaling agent, metal rust inhibitor, sugar juice purifier, etc.