Tris(phosphonomethyl)amine; Nitrilotrimethylphosphonic acid; Aminotris(methylphosphonic acid); ATMP; NTMP
3D model (JSmol)
CompTox Dashboard (EPA)
|Molar mass||299.048 g·mol−1|
|Density||1.33 g/cm3 (20 °C)|
|Melting point||200 °C (392 °F; 473 K) decomposes|
|61 g/100 mL|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
ATMP or aminotris(methylenephosphonic acid) is a phosphonic acid with chemical formula N(CH2PO3H2)3. It has chelating properties. It can be synthesized from the Mannich-type reaction of ammonia, formaldehyde, and phosphorous acid, in a manner similar to the Kabachnik–Fields reaction.
ATMP has better antiscale performance than that of polyphosphate through its excellent chelating ability, low threshold inhibition and lattice distortion process. It can prevent scale formation in water systems. ATMP is the phosphonate analog of nitrilotriacetic acid.