2-膦酸丁烷1.2.4-三羟酸

2—Phosphonobutane—1,2,4—tricarboxylic acid(PBTCA)
37971-36-1

湖北更新日期：2020-03-01

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产品详情:

中文名称：: 2-膦酸丁烷1.2.4-三羟酸

英文名称：: 2—Phosphonobutane—1,2,4—tricarboxylic acid(PBTCA)

CAS号：: 37971-36-1

At present, many American and European cooling water circulation systems use the water treatment agents with the main content of PBTCA. For example, N-7354 (Nalco), DP-3094 (Ciba-Geigy), S-1050(Japan)& HP-1000e(Japan).

●(1) Molecular Weight & Chemical Structure:

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C₇H_llO₉P000

270

O₃H₂

H₂-

- CH_{2 -}

H₂

OOH

●(2) Properties:

It has the structure feature of both phospho acid and carboxglic acid group，thus enabling its anti-scaling corrosion properties much satisfactory．When compared with the usually-applied organic phospho acid(HEDP，ATMP，EDTMP)，it has the obvious excellent features．Moreover，its property of anti-scaling in high temperatureis fairly superior to the organic phospho acid. And, it can improve the solubility of zinc. Especially ,it can even dissolve the zine when the pH parameter indicates 9.5．

●(3) Specification:

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Appearance

Clear yellow to amber solution

Active content

50±1%

Phosphorous (as PO₃^3-)

≤0.5%

Phosphate (as PO₄^3-)

≤0.4%

pH(1% water solution)

≤2

Density(20℃ g/cm³)

1.26~1.30

Iron

≤5ppm

After detected with ^3lP—NMP，It is concluded that this NC-206 has the content of more than 86％, which is in accordance with the Bayhibit AM of Bayer Company.

● (4)Use:

When complexed with zinc and put into the cooling water complex formula, this product can improve the anti-sealing properties of the formula and the anti-corrosion properties in the alkali base systems. The usual dosage is 5-15 ppm, and continous application is preferred．

PBTCA, water treatment chemicals, water treatment agents