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2-Phosphonobutane -1, 2, 4-Tricarboxylic Acid (PBTCA)

CAS No. 37971-36-1 Dequest 7000
Molecular Formula: C7H11O9P

H.S Code: 29420000 Molecular weight: 270.13.

Specification

items	index
Appearance	Clear,Colorless to pale yellow aqueous solution
Active acid %	50.0 %min
Phosphorous acid(as PO₃^3-)%	0.5 %max
Phosphorous acid(as PO₄^3-)%	0.2% max
Density (20℃) g/cm³	1.27-1.31
pH(1% solution)	1.5~1.9
Iron (ppm)	10.0max
Chloride (as Cl^-)%	10 ppm max

Usage:

PTBCA is a high efficient agent as scale and corrosion inhibitor. 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.

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.

Package and Storage:

Normally In 250kg net Plastic Drum, IBC drum can also be used as required. Storage for one year in room shady and dry place.