What is the difference between DTPMPA and HEDP?

DTPMPA: It is mainly used as a scale and corrosion inhibitor for circulating cool water and boiler water systems, and is particularly good in alkaline environments. In addition, it can be used in textile printing and dyeing, pigment dispersion, chemical fertilizer and concrete additives and other industries.

HEDP: It is widely used as scale and corrosion inhibitor in circulating cooling water system and medium and low pressure boiler in electric power, chemical industry, metallurgy, chemical fertilizer and other industries. In light textile industry, HEDP can be used as cleaning agent for metal and non-metal; in bleaching and dyeing industry, it can be used as peroxide stabilizer and color-fixing agent; in cyanide-free plating industry, it can be used as complexing agent; in pharmaceutical industry, it can be used as carrying agent for radioactive elements.