2-Phosphonobutane -1,2,4-Tricarboxylic Acid (PBTC) CAS No. 37971-36-1

CAS No. 37971-36-1Molecular Formula: C7H11O9P Molecular weight: 270.13Structural Formula:Properties:PBTC has a low phosphoric content and has structural features of both phosphoric acid and carboxylic acid group, which enable its excellent scale and corrosion inhibition properties. Its antiscale
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Product Description

CAS No. 37971-36-1

Molecular Formula: C₇H₁₁O₉P Molecular weight: 270.13

Structural Formula:

Properties:

PBTC has a low phosphoric content and 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:

Items	Index
Appearance	Clear, colorless to pale yellow aqueous solution
Active acid %	50.0 min
Phosphorous acid(as PO₃^3-)%	0.5 max
Phosphoric acid(as PO₄^3-)%	0.2 max
Density (20℃) g/cm³	1.27 min
pH(1% water solution)	1.5~2.0
Fe, mg/L	10.0 max
Chloride mg/L	10.0 max

Usage:

PBTC is a highly efficient agent as a scale and corrosion inhibitor. PBTC is an excellent stabilizer for zinc salt. It is widely used in circulating cool water system and oilfield refill water system as a scale and corrosion inhibitor, suitable to composite with zinc salt and copolymer. PBTC can be used in high temperature, high hardness, high alkali, and high concentration index. In lavation fields, it is used as a chelating agent and metal detergent.

PBTC 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:

200L plastic drum,IBC(1000L),customers’ requirement. Storage for one year in shady room and dry place.

Safety Protection:

Acidity, Avoid contact with eye and skin, once contacted, flush with water.