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Molecular Formula: C7H7O9P•Na4
CAS No. 40372-66-5
Alias: PBTC•Na4
Molecular weight: 358
Structural Formula:
CAS 40372-66-5 2-Phosphonobutane-1,2,4-Tricarboxylic Acid PBTC Na4 for Water Treatment
Properties & Use
PBTCA•Na4 is the widely used and high effective agent as composite scale and corrosion inhibitor, it is also the excellent stabilizer for zinc salt. PBTCA•Na4 is used as scale and corrosion inhibitor in circulating cool water system and oilfield refill water system, especially used together with zinc salt and copolymer. PBTCA•Na4 can be used in situations of high temperature, high hardness, high alkaline and high concentration index, PBTCA•Na4 is used as chelating agent and metal detergent in lavation fields.
PBTCA•Na4 is usually used together with zinc salt, copolymer, organophosphine, imidazole and other Water Treatment Chemicals.
Specification:
| Items | Index | |
| Appearance | White crystal powder | White powder |
| Active component (PBTC, % ) | 64.0 min | 67.0 min |
| Active component (PBTC•Na4, %) | 84.8 min | 88.8 min |
| Total phosphoric acid(PO43-%, ) | 22.5 min | 23.5 min |
| Fe, mg/L | 35 max | 35 max |
| PH (1% water solution) | 4.0-6.0 | 6.5-8.0 |
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