cas 37971-36-1 refers to 2-phosphonobutane-1,2,4-tricarboxylic acid PBTCA.
PBTCA has low phosphorus content, due to its structural characteristics of phosphonic acid and carboxylic acid, it has good scale and corrosion inhibition performance, better than commonly used organophosphonic acid, especially in high temperature scale inhibition performance is far better than commonly used organophosphonic acid, it can improve the solubility of zinc, good resistance to chlorine oxidation, good synergy of compounding. PBTCA is widely used in the compounding of high efficient scale and corrosion inhibitors, with superior performance, and it is also an excellent stabilizer of zinc salt. PBTCA is widely used in circulating cooling water system and oilfield water injection system corrosion and scale inhibition, especially suitable for compounding with zinc salt and copolymer, it can be used in high temperature, high hardness, high alkalinity and need to be operated under the high concentration multiples of the occasions; it can be used as a chelating agent and metal cleaning agent in the washing industry.
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