2-Phosphonobutane -1,2,4-Tricarboxylic Acid
CAS No. 37971-36-1
Molecular Formula: C7H11O9P
Molecular weight: 270.13
Description
PBTCA
2-Phosphonobutane -1,2,4-Tricarboxylic Acid
(PBTC)
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CAS No. 37971-36-1 |
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| Molecular Formula: C7H11O9P | Molecular weight: 270.13 |
| Structural Formula: |
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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
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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 |
Synonyms
PBTC;PBTCA;PHOSPHONOBUTANE TRICARBOXYLIC ACID;2-Phosphonobutane -1,2,4-Tricarboxylic Acid;2-Phosphonobutane-1,2,4-tricarboxylic acid PBTC;
Package and Storage
200L plastic drum,IBC(1000L),customers' requirement. Storage for one year in shady room and dry place.
Safety Protection
Acidity, Avoid contact with eye and skin, once contacted, flush with water.
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.
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