2-Phosphonobutane-1,2,4-Tricarboxylic Acid (PBTCA), CAS No. 37971-36-1, 50% Active Acid
2-Phosphonobutane -1,2,4-Tricarboxylic Acid (PBTCA)
CAS No. 37971-36-1 Molecular Formula: C7H11O9P Molecular weight: 270.13
Synonyms: Dequest 7000, PBTC, Phosphonobutane Tricarboxylic Acid
Structural Formula:
Specification:
| Items | Index |
| Appearance | Clear, colorless to pale yellow aqueous solution |
| Active acid % | 50.0-51.0 |
| 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 ppm | 10.0 max |
| Chloride ppm | 10.0 max |
| Turbidity (NTU) | 10.0 max |
| Color APHA | 30.0 max |
Usage:
PTBCA is a high efficient agent as scale and corrosion inhibitor. It 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.
PBTCA 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.
PBTCA 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.
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.
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