15475-67-9 Trisodium Phosphate White Crystal For Metal Treatment

15475-67-9 Trisodium Phosphate White Crystal for Metal Treatment

Trisodium phosphate is a versatile chemical in metal treatment, mainly acting through its basicity, complexation, and surface activity.

The mechanism of trisodium phosphate in rust removal and passivation: Trisodium phosphate can react with metal oxides (such as Fe₂O₃) to form iron phosphate complex, which partially dissolves the rust layer. At high temperature or high concentration, it can form insoluble phosphate film (such as iron phosphate) with metal surface, providing short-term rust prevention ability.

Application scenarios:
Low corrosive rust remober (to be combined with other acids such as citric acid).
Passivate the surface of carbon steel, delay the return rust (with corrosion inhibitor). 

Trisodium phosphate is a "generalist" in metal handling, with both performance and cost-effectiveness. We provide high quality TSP and professional technical support to help enterprises improve cleanliness, prolong equipment life and reduce overall costs!