2-Phosphonobutane-1,2,4-tricarboxylic acid CAS NO.37971-36-1

conform to HG/T 3662-2000 Items Index Appearance Colorless or light yellow transparent liquid Active acid （as PBTCA）% ≥ 50.0 Phosphorous acid …

conform to HG/T 3662-2000 Items Index Appearance Colorless or light yellow transparent liquid Active acid （as PBTCA）% ≥ 50.0 Phosphorous acid (as PO33-)% ≤ 0.8 Phosphorous acid (as PO43-)% ≤ 0.5 Density (20℃) g/cm3 ≥ 1.270 pH(1% solution) 1.5 - 2.0 As high-efficient agent of scale and corrosion inhibitor, PBTCA is one of the widespread used and good performing products. It is the excellent stabilizer for zinc salt. It is widely used in circulating cool water system and oilfield refill water system as scale and corrosion inhibitor, suitable to composite with zinc salt and copolymer. It can be used in situations of high temperature, high hardness, high alkali and high concentration index. In lavation fields, it is used as chelating agent and metal detergent. Application range&using method PBTCA is usually used together with zinc salt, copolymer, organophosphine, imidazole and other Water Treatment Chemicals. When used alone, the dosage of 5-15mg/L is preferred.