CAS No.:37971-36-1
2-Phosphonobutane -1,2,4-Tricarboxylic Acid
Synonyms: PBTC, PBTCA
Molecular formula: C7H11O9P
CAS No: 37971-36-1
UN NO.: UN3265 8/PG III
Clear, colorless to pale yellow aqueous solution, PBTC phosphorus content is low, and scale inhibition performance at high temperature is much better than the organic phosphonic acid, can improve the solubility of zinc salt, even at PH 9.5 can and processing zinc salt dissolved state.
Application
PBTC 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.
Specification
| Items | Unit | Lower Limit | Upper Limit | |
| Appearance | Clear, colorless to pale yellow aqueous solution | |||
| Active acid | % | 50.0 | ||
| Phosphorous acid as PO33- | % | 0.5 | ||
| Phosphoric acid as PO43- | % | 0.2 | ||
| Chloride (as Cl) | mg/L | 10.0 | ||
| pH (1% solution) | 1.5 | 2.0 | ||
| Density 20℃ | g/cm3 | 1.27 | ||
| Iron as Fe | mg/L | 10.0 | ||
Package:
1250KG IBC, 250KG DRUM
Certificates:
ISO14001,ISO45001,ISO9001, KOSHER, HALAL,EU-REACH,UK-REACH