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TH-628 Scale and Corrosion Inhibitor


TH-628 is composed of organophosphine acid, polycarboxylic acid, sulfosalt copolymers and thiazole. It can chelate and disperse calcium carbonate and calcium phosphate scales. TH-628 has good scale inhibition effect on steel & iron and copper. TH-628 can be operated under high concentration index in power plant, chemical plant and central air conditioner.


Items Index
Appearance Amber liquid
Solid content,% 30.0 min
Total phosphoric acid,(as PO43-)% 15.0 min
pH(1% water solution) 2.51.0
Density(20?) , g/cm3 1.10 min


Add TH-628 into plastic pool (or box) every day, dilute with water and continuously add into inlet of dosage pump or metering valve (outlet of collecting tank). The dosage of 5-20ppm is preferred. 

Package and Storage:

200L plastic drum,IBC(1000L),customers’ requirement. Storage for ten months in shady room and dry place.

Related Products:   TH-628 Scale and Corrosion Inhibitor
                                     TH-682 Scale and Corrosion Inhibitor for low hardness water
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