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PBTCA

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PBTCA has low content of phosphorus. Its structural property of both phosphonic acid and carboxylic acid enables PBTCA to have excellent scale inhibition and corrosion inhibition performance, and to be better than the commonly used organic phosphonic acid, especially at high temperature condition.

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  • PBTCA
  • ThFine
  • CAS No. 37971-36-1
  • 2-Phosphonobutane -1,2,4-Tricarboxylic Acid

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

(PBTCA)

  

CAS No.: 37971-36-1                                  EINECS No.: 253-733-5

Molecular Formula: C7H11O9P                  Molecular Weight: 270.13

RIDADR: UN 3265 8/PG III

Structural Formula: 

PBCTA.gif


Properties: 

PBTCA has low content of phosphorus. Its structural property of both phosphonic acid and carboxylic acid enables PBTCA to have excellent scale inhibition and corrosion inhibition performance, and to be better than the commonly used organic phosphonic acid, especially at high temperature condition. PBTCA can improve the solubility of zinc, and has good chlorine oxidation tolerance and good composite synergy.


Applications:

PBTCA is most widely used in the combination of high efficiency scale and corrosion inhibitors, as one of the best chemicals, and it is also excellent stabilizer of zinc salt. PBTCA is widely used as corrosion and scale inhibitors in circulating cooling water system and oilfield water injection systems, and is especially suitable for use with zinc salt and copolymer. It can be used in the situation of high temperature, high hardness, high alkali and high concentration times. PBTCA can be used as chelating agent and metal cleaning agent in washing industry.


Specification:

Items

Index

Appearance

Clear, colorless to pale yellow aqueous solution

Active  acid %

50.0 min

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, mg/L

10.0 max

Chloride mg/L

10.0 max

Color APHA (Hazen)

20.0 max


Usage:

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 200L HDPE drum, 1000L IBC, or customers’ requirement.

Storage for one year in shady room and dry place.

Package


Safety Protection:

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


Synonyms:

PBTCPBTCAPBTC 50%;

Phosphonobutane tricarboxylic acid

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

2-Phosphonobutane-1,2,4-tricarboxylic acid PBTC;



Phosphonates Antiscalants, Corrosion Inhibitors and Chelating Agents

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