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2 Phosphonobutane 1 4 Tricarboxylic Acid Pbtca - China

price: contact company for price

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

CAS No. 37971-36-1

Molecular Formula: C7H11O9P Molecular weight: 270.13

Structural Formula:


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.


items index

Appearance Clear, colorless to pale yellow aqueous solution

Active acid % 50.0-51.0

Phosphorous acid(as PO33-)% 0.5 max

Phosphoric acid(as PO43-)% 0.2 max

Density (20℃) g/cm3 1.27 min

pH(1% water solution) 1.5~2.0

Fe ppm 10.0 max

Chloride ppm 10.0 max

Turbidity (NTU) 10.0 max

Color APHA 30.0 max


PBTCA is a high efficient agent as scale and corrosion inhibitor. PBTCA 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. PBTCA 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:

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.


PBTCA;PBTC;PHOSPHONOBUTANE TRICARBOXYLIC ACID;2-Phosphonobutane -1, 2, 4-Tricarboxylic Acid;2-Phosphonobutane-1, 2, 4-tricarboxylic acid PBTC;

2 Phosphonobutane 1 4 Tricarboxylic Acid Pbtca

Feel free to contact us with all your questions

Company Contact:

  • Phone: 86-632-5796776

  • Address: Zhongtian Road, Shizhong district, Zaozhuang city,, Zaozhuang, China

  • Email: Email

Published date: September 10, 2012 -

  • Business Description: Youbang Chemicals Co., Ltd. ( YBC), founded in 1999, is one of the largest Chinese manufacturers of polymers, biocides, phosphonates and other water treatment chemicals.

    YBC has acquired its Certification for ISO9001 Quality Management System (QMS), Certification for ISO9001 14001 Environmental Management System (EMS) and Certification for OHSAS 18001 Occupational Health and Safety Assessment Series.

    YBC has also been granted network access license for water treatment chemicals for electric power systems and SINOPEC.

    YBC boasts of stable product quality, reliable product performance, complete product line of water treatment chemicals, customized products, rapid response, timely delivery and perfect post sales service. With a total staff number of 300, an annual capacity of 50,000 MT and an annual turnover of $65 Million, YBC provides its products through reliable agencies and distributors worldwide.

    YBC is dedicated to manufacture of high quality water treatment chemicals for extensive applications in numerous fields of industrial water treatment, including but not limited to: oilfields, boilers, cooling towers, geothermal power plants, and reverse osmosis systems, etc.

    YBC is always committed to R&D and innovation. YBC s pilot and bench test facilities allow for various performance evaluation tests on a basis of customized formulations.

    YBC, your professional supplier and partner of water treatment chemicals in China.

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