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2-Phosphonobutane -1,2,4-Tricarboxylic Acid(PBTCA)
CAS No.
37971-36-1
Molecular Formula:
C7H11O9P
Molecular weight:
270.13
Structural Formula:
PBTCA has a low phosphoric content and 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.
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Items |
Index |
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Appearance |
Clear, colorless to pale yellow aqueous solution |
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Active acid % |
50.0 min |
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Phosphorous acid(as PO33-)% |
0.5 max |
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Phosphoric acid(as PO43-)% |
0.2 max |
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Density (20℃) g/cm3 |
1.27 min |
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pH(1% water solution) |
1.5~2.0 |
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Fe, mg/L |
10.0 max |
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Chloride mg/L |
10.0 max |
2-Phosphonobutane -1,2,4-Tricarboxylic Acid is a highly efficient agent as a scale and corrosion inhibitor. PBTC is an excellent stabilizer for zinc salt. It is widely used in circulating cool water system and oilfield refill water system as a scale and corrosion inhibitor, suitable to composite with zinc salt and copolymer. PBTC can be used in high temperature, high hardness, high alkali, and high concentration index. In lavation fields, it is used as a 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),customers’ requirement. Storage for one year in shady room and dry place.
Acidity, Avoid contact with eye and skin, once contacted, flush with water.
PBTC;PBTCA;PHOSPHONOBUTANE TRICARBOXYLIC ACID;2-Phosphonobutane -1,2,4-Tricarboxylic Acid;2-Phosphonobutane-1,2,4-tricarboxylic acid PBTC;
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