ATMP
Names | |
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Preferred IUPAC name
[Nitrilotris(methylene)]tris(phosphonic acid) | |
Other names
Tris(phosphonomethyl)amine; Nitrilotrimethylphosphonic acid; Aminotris(methylphosphonic acid); ATMP; NTMP
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Identifiers | |
3D model (
JSmol ) |
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ChEMBL | |
ChemSpider | |
ECHA InfoCard
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100.026.496 |
EC Number |
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PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
C3H12NO9P3 | |
Molar mass | 299.048 g·mol−1 |
Appearance | White solid |
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).
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ATMP or aminotris(methylenephosphonic acid) is a
phosphonic acid with chemical formula N(CH2PO3H2)3. It is a colorless solid. Its conjugate bases, such as [N(CH2PO3H)3]3-, have chelating
properties.
ATMP can be synthesized from the Mannich-type reaction of ammonia, formaldehyde, and phosphorous acid, in a manner similar to the Kabachnik–Fields reaction.[1][2]
Properties
ATMP has good antiscale performance.[3][4] It is related structurally to nitrilotriacetic acid.[5]
Applications
- Detergents and cleaning agents
- Fouling
- Inhibition
- Water treatment