Sodium Chlorite

Product Name: PBTC

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

Cas No: 37971-36-1

Molecular Structure: C7h11o9p

Hazard Class: 8

Min Order Qty: 1mts

Qty In 20' Fcl: 25mts(Ibc)20mts(250kg Drum)

Certificate: Iso9001:2008

Packing Details: 1250ibc/250kg

Delivery Time: 30-45days

Supply Ability: 10000kg Per Month

Hs Code: 2931399090


Commodities Name2-Phosphonobutane -1,2,4-Tricarboxylic Acid(PBTC)
AppearanceClear, 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/cm31.27 min
PH (1% water solution)1.5~2.0
Fe, mg/L10.0 max
Chloride mg/L10.0 max


PBTC has low content of phosphorus. Its structural property of both phosphonic acid and carboxylic acid enables PBTC 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.
PBTC can improve the solubility of zinc, and has good chlorine oxidation tolerance and good composite synergy.


PBTC 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. PBTC 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. PBTC can be used as chelating agent and metal cleaning agent in washing industry.


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.


11. What kinds of certificates can you offer?
YuXiang Chemical is an ISO2008 9001 certified company, as for PBTC, we can offer REACH registration.
22. Is Yuxiang Chemical a manufacturer or a trading company?
Yuxiang chemical is a group company with its own production base located in Jiangsu and Zhejiang province. For more than 20 years’ development, Yuxiang also joins up with several local plants to evaluate some special chemicals including R&D, production process and sales strategy.
33. What is your advantage on PBTC?
More than 10 years’ experience in supplying PBTC to world market with competitive prices and stable supply.
44. How long shall we wait for your reply?
We can guarantee to reply your inquiries in less than 24 hours in working days.
55. Can we get some samples for interesting chemicals?
Yes. We can provide testing samples after receiving from the customers detailed inquiries as well as COA confirmed.
66. Are your payment terms negotiable?
Yes. Our payment terms are negotiable according to different trading conditions. We’ll always try our best to satisfy the customers for both benefit.
77. Do you accept long term contract? For example, one year.
Most of the chemicals’ prices changes from time to time but some are stable. We can discuss individually and see what we can do for you.