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E-mail: export@krchemical.com
ADD: No.1, Fuqian South Road, Xuecheng Chemical Industrial Park, Xuecheng District, Zaozhuang City, Shandong Province, China

KR-628 scale and Corrosion Inhibitor


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


AppearanceAmber liquid
Solid content, %30.0 min
Total phosphoric acid,(as PO43-), %15.0 min
Thiazole (as C6H5N3)2.0 min
pH(1% water solution)2.5±1.0
Density (20℃), g/cm31.10 min


Add KR-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.