更新时间：2022-08-17 23:07
PBTCA（2-磷酸基-1，2，4-三羧酸丁烷）是上世纪八十年代发明的新一代膦羧酸，为比较领先的一种低磷缓蚀阻垢剂，现已广泛应用于工业生产。工业生产中以二烷基亚磷酸酯、顺丁烯二酸二烷酯，以及丙烯酸烷酯等为原料，在强碱性催化条件下，经一步连续反应合成的。其产率为87.7%;采用IR、31P-NMR、1H-NMR、13C-NMR等方法证实了合成产物的分子结构，并取得了理想的结果。
PBTCA在高效阻垢缓蚀剂复配中应用最广，是性能最好的产品之一，也是锌盐的优良稳定剂。广泛应用于循环冷却水系统和油田注水系统的缓蚀阻垢，特别适合与锌盐、共聚物复配使用，可用于高温、高硬、高碱及需要高浓缩倍数下运行的场合，PBTCA在洗涤行业中可作螯合剂及金属清洗剂。应用范围与使用方法
PBTCA一般与锌盐、共聚物、有机磷、唑类等其它水处理剂复配使用。如单独使用投加剂量为5~15mg/L。
PBTCA为酸性，应避免与眼睛、皮肤接触，一旦溅到身上，应立即用大量水冲洗。
2-Phosphonobutane -1,2,4-Tricarboxylic Acid(PBTCA)
CAS No. 37971-36-1 Dequest 7000
Molecular Formula:C7H11O9PMolecular weight: 270.13
Structural Formula:
Properties:
PBTCA 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:
Usage:
PBTCA 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. It 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:
Normally In 250kg net Plastic Drum, IBC drum can also be used as required. Storage for one year in room shady and dry place.
Safety Protection:
Acidity, Avoid contact with eye and skin, once contacted, flush with water.
Keywords:PBTCA China,2-Phosphonobutane -1,2,4-Tricarboxylic Acid(PBTCA)