SODIUM PHOSPHATE (TRIBASIC) Chemical compatibility with O-rings, rubbers, & plastics

Sodium phosphate tribasic, also known as trisodium phosphate or TSP with the formula Na3PO4, is a white crystalline compound widely used as a buffering agent, emulsifier, and cleaning additive in industrial and food processing applications. It is also used in detergents, water treatment systems, and chemical manufacturing processes. In equipment where trisodium phosphate solutions contact O-rings, rubber seals, gaskets, and plastic components, compatibility should be evaluated to maintain sealing integrity and prevent material degradation. Proper storage, safe handling procedures, and appropriate PPE are recommended to reduce irritation risks and ensure reliable operation.

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