Amino trimethylene phosphonic acid (ATMP) applications

[Application] ATMP has good chelation, low limit inhibition and lattice distortion, and has good synergy with polyphosphate , polycarboxylate, nitrite , and can effectively prevent the formation of scale salts in water Scale is a commonly used scale inhibitor and dispersant in the field of industrial circulating cooling water treatment
.

(1) Anti-scaling mechanism

ATMP can dissociate into 6 positive ions and 6 negatively charged ions in water, and can form a polycyclic chelate with Ca ²⁺ and Mg ²⁺ in water.
This macromolecular chelate is loosely dispersed in water.
The normal crystallization of calcium and magnesium scale is destroyed
.

(2) Used as scale and corrosion inhibitor

ATMP is generally used as a scale inhibitor for circulating cooling water, oilfield water injection and printing and dyeing water.
As a scale inhibitor, the concentration is less than 10mg/L, and as a corrosion inhibitor, the concentration is greater than 100mg/L
.

Table 5-4 Addition amount and scale inhibition rate of compound

It can be seen from Table 5-4 that under the same test conditions, compared with the addition of PASP or ATMP alone, the compound significantly improved the scale inhibition performance
.

(3) Other uses

ATMP can also be used as a metal cleaner to remove grease on metal surfaces.