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144797

Sigma-Aldrich

Nitrilotris(methylene)triphosphonic acid solution

50 wt. % in H2O

Synonym(s):

Nitrilotri(methylphosphonic acid) solution

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About This Item

Linear Formula:
N[CH2P(O)(OH)2]3
Molecular Weight:
299.05
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

form

liquid

Quality Level

concentration

50 wt. % in H2O

impurities

10-20% aqueous inorganic acids

pH

0.46

density

1.3 g/mL at 25 °C

functional group

amine

SMILES string

OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O

InChI

1S/C3H12NO9P3/c5-14(6,7)1-4(2-15(8,9)10)3-16(11,12)13/h1-3H2,(H2,5,6,7)(H2,8,9,10)(H2,11,12,13)

InChI key

YDONNITUKPKTIG-UHFFFAOYSA-N

General description

Nitrilotris(methylene)triphosphonic acid solution is an antiscalant and can be removed form membrane concentrates by iron-coated waste filtration sand. It is a cement retarder. It reacts with the aluminum surface to form a coating which is an effective inhibitor of the reaction of evaporated aluminum thin films on glass or silicon with deionized water.

Application

Nitrilotris(methylene)triphosphonic acid solution was used to study the mechanism of inhibition of cement hydration by phosphonic acid.

Pictograms

Corrosion

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Met. Corr. 1 - Skin Corr. 1A

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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A new mechanism for cement hydration inhibition: solid-state chemistry of calcium nitrilotris (methylene) triphosphonate.
Bishop M, et al.
Chemistry of Materials, 15(16), 3074-3088 (2003)
Corrosion inhibitors for aluminum films.
Zanzucchi PJ and Thomas JH.
Journal of the Electrochemical Society, 135(6), 1370-1376 (1988)
Factors in the selection of chelating agents for extraction of lead from contaminated soil: effectiveness, selectivity, and recoverability.
Hong PKA and Jiang W.
Biogeochemistry of Chelating Agents, 910, 421-432 (2005)
Peng Mei et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 23(18), 4344-4352 (2017-03-08)
Highly ordered mesostructured vanadium phosphonates (VP) have been synthesized in the presence of cetyltrimethylammonium bromide (CTAB) as a structure-directing agent. Nitrilotris(methylene)triphosphonic acid (NMPA) and (ammonium/sodium) metavanadate (NH
L Boels et al.
Journal of hazardous materials, 182(1-3), 855-862 (2010-07-30)
Iron-coated waste filtration sand was investigated as a low-cost adsorbent for the removal of nitrilotris(methylenephosphonic acid) (NTMP) from membrane concentrates. The adsorption of this phosphonate-based antiscalant on this material was measured and compared with two commercially available anion exchange resins

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