Cradle to Gate
Identity ID
491dd099-735e-4194-89ed-f6695961617a
Materials
Associated ID
1c651dff-d965-41ca-bb00-68ca13be84b1
Included activities starts
Included activities ends
Description
Trisodium phosphate is mainly used as a water softener, boiler cleaner, metal rust inhibitor, and in fields such as paper, leather and photography; Trisodium phosphate is modelled as a pure substance; when modelling this substance the user needs to add a solvent of their choice in the model; the dataset contains the main raw and auxiliary materials, energy, waste and atmospheric emissions of the production process, and infrastructure such as the manufacture of production equipment and the construction of plant buildings is not included within the dataset boundary; the data inventory is formed based on stoichiometry and by merging data from multiple sources; the production activities of this product include neutralisation, concentration, crystallisation and drying.
Activity Description
The production activities of this product include neutralization, concentration, crystallization, drying and other processes.
Process Description
Trisodium phosphate has the chemical formula Na3PO4 and CAS number 7601-54-9. It is typically a colorless to white hygroscopic crystalline solid with a relative density of approximately 2.5. It is readily soluble in water, insoluble in ethanol, and forms a strongly alkaline aqueous solution. It decomposes on heating. Trisodium phosphate is mainly used as a water softener, boiler cleaner, and metal corrosion inhibitor, and is also used in papermaking, tanning, photography, and other applications.
Time period
2024
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The wet-process phosphoric acid neutralization method is an economical mainstream technology for the production of trisodium phosphate. It is produced by the neutralization reaction of low-cost wet-process phosphoric acid and soda ash. It accounts for more than 80% of the domestic industrial grade trisodium phosphate market. This data set represents this mainstream technology: trisodium phosphate is modeled as the product of the reaction of phosphoric acid and sodium hydroxide, involving the chemical reaction equation: 3NaOH + H3PO4 → Na3PO4 + 3H2O.