CAS No. 37971-36-1
Molecular Formula: C7H11O9P Molecular weight: 270.13
PBTCA has low content of phosphoric, has structural features of
both phosphoric acid and carboxylic acid group, which enable its
excellent scale and corrosion inhibition properties. Its antiscale
property under high temperature is far better than that of
organophosphines. It can improve zinc salt solubility, has good
chlorine oxidation tolerance and good composite synergy.
Appearance Colorless or light yellow transparent liquid
Active acid % 50.0 min
Phosphorous acid(as PO33-)% 0.8 max
Phosphorous acid(as PO43-)% 0.5 max
Density ( 20C) g/cm3 1.27 min
pH(1% solution) 1.5~2.0
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.
Acidity, Avoid contact with eye and skin, once contacted, flush