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

Molecular Formula: C7H11O9P
Molecular weight: 270.13

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
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
PBTC is a high efficient agent as scale and corrosion inhibitor. PBTC 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. PBTC 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.
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.

 200L plastic drum,IBC(1000L), or to be discussed

Biddle Sawyer Fortune Chem ( Asian Sales Division of Biddle Sawyer New York ) sells proven
quality 2-Phosphonobutane -1,2,4-Tricarboxylic Acid (PBTC) on a regular basis.

Contact Point :
Mr.  S. M. Kang, CEO
Mr.  Jingu Kang, Manager

Tel : 82-(0)51-701-9121
Fax : 82-(0)51-701-9125

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Sodium Percarbonate Type and Food Grade,Industrial Grade Grade Standard sodium percarbonate 

Custom Manufacturing and Development Capabilities

R&D at 6 labs (affiliate or contract)
~350 Chemists at 6 facilities in USA, China, Korea, Taiwan, India and Finland
~40 PhD's, ~120 M.S.; External consultants welcomed
~400 combined hoods
Up to 100L vessels in labs

Development Services
Tech Transfer
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Custom Synthesis; FTE
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Production at 6 plants (affiliate or contract)
>150 vessels at 6 facilities in USA, China, Korea, Taiwan and Finland
>2000m3 capacity
Vessels from 300L to 10,000L
Temps from -80 to 350C
 
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