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Water Treatment Scale and Corrosion Inhibitor PBTCA 50% CAS 37971-36-1

PBTC controls scale where halogen-based biocides or hypochlorite bleach are employed. Controls calcium scale formation in high stressed alkaline conditions. 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.

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Model:
PBTC 50%
Brand:
SINOBIO

Product Description

2-Phosphonobutane -1,2,4-Tricarboxylic Acid

(PBTC)

CAS No. 37971-36-1

Molecular Formula: C7H11O9P

Molecular weight: 270.13

Structural Formula:

e022adde4b0390d532b31a42a64c7883_pbtca

Properties:

PBTC 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.

Specification:

Item	Standard
Appearance	Index Appearance Water white to pale yellow liquid
Active Acid %	49.0 - 51.0
Phosphorous acid as PO₃3- %	0.5 max
Phosphoric acid as PO43 %	0.2 max
Chloride as Cl ppm	10.0 max
PH (1% solution) @20 °C	1.5-2.0
Density (20℃),g/cm3	1.270 min
Iron content (Fe ppm)	10.0 max
Colour (Hazen)	50 max

Application:

PBTC has been widely used in industry as a sequestering agent and calcium carbonate scale inhibitor for applications in industrial water treatment and industrial cleaning. It 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:

PBTC 50% : 250 kg drum or 1250 kg / IBC

Storage for one year in shady room and dry place.