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Amino tris(methylene phosphonic acid)

Water treatment agent Uses Instructions Reference quality standards Usage
Amino tris(methylene phosphonic acid)
Amino tris(methylene phosphonic acid) structure
Chemical Name:
Amino tris(methylene phosphonic acid)
ATMP;ntpo;ATMPA;(nitrilo;dowelll37;ferrofos509;Dequest 2000;Briquest 301;BRIQUEST 301-50A;triphosphonic acid
Molecular Formula:
Formula Weight:
MOL File:

Amino tris(methylene phosphonic acid) Properties

Melting point:
~215 °C (dec.)
Boiling point:
746.2±70.0 °C(Predicted)
1.3 g/mL at 25 °C
Stable. Incompatible with bases, strong oxidizing agents.
CAS DataBase Reference
6419-19-8(CAS DataBase Reference)
EPA Substance Registry System
Phosphonic acid, [nitrilotris(methylene)]tris- (6419-19-8)
  • Risk and Safety Statements
Signal word  Warning
Hazard statements  H319
Precautionary statements  P305+P351+P338
Hazard Codes  Xi,C
Risk Statements  36-34-35
Safety Statements  26-45-36/37/39-25-44-36
RIDADR  3265
WGK Germany  1
RTECS  SZ9860000
HazardClass  8
PackingGroup  III
HS Code  29319090

Amino tris(methylene phosphonic acid) price More Price(4)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 72568 Nitrilotri(methylphosphonic acid) ≥97.0% (T) 6419-19-8 10g $102 2018-11-13 Buy
Sigma-Aldrich 72568 Nitrilotri(methylphosphonic acid) ≥97.0% (T) 6419-19-8 50g $400 2018-11-13 Buy
TCI Chemical N0474 Nitrilotris(methylenephosphonic Acid) (ca. 50% in Water, ca. 2.2mol/L) 6419-19-8 25mL $33 2018-11-22 Buy
TCI Chemical N0474 Nitrilotris(methylenephosphonic Acid) (ca. 50% in Water, ca. 2.2mol/L) 6419-19-8 500mL $126 2018-11-22 Buy

Amino tris(methylene phosphonic acid) Chemical Properties,Uses,Production

Water treatment agent

Amino tris(methylene phosphonic acid), its solid form is crystalline powder, soluble in water, hygroscopic, has excellent chelation, low threshold inhibition and lattice distortion. It has excellent scale inhibition below 200 ℃, low toxicity, good thermal stability, Amino tris(methylene phosphonic acid) can be dissociated into six positive and negative ions in the water, and can form a stable chelate with a variety of metal ions such as iron, copper, aluminum, zinc, calcium, magnesium, etc. It has a more preferable scale inhibition effect on carbonate . And it has good synergy with the polyphosphate, polycarboxylate, nitrite. There are good inhibition when in 40mg/L.


It is used for power plants, refineries, petrochemicals, fertilizer plant cooling water, oil field injection water system,particularly suitable for hard high-calcium, low concentration multiple systems, such as power plants and high hardness high salinity, bad water quality conditions of the oil pipeline inhibitors,which may decrease the risk of corrosion and scaling of metal equipment and pipeline. In the textile printing and dyeing industry,Amino tris(methylene phosphonic acid) is used as a metal ion chelating agent, metal surface treatment agent.
The above information is edited by the chemicalbook of Tian Ye.


Amino tris(methylene phosphonic acid) is often used with other organic acid, polylactic acid or salt to form organic water treatment agents for circulating cooling water systems under a variety of different water quality conditions. The amount of 1~20mg/L is preferred; in an amount of 20~60mg/L when used as a corrosion inhibitor .
Amino tris(methylene phosphonic acid)is acidic, pay attention to labor protection, should avoid contact with eye and skin, once contacted, flush with plenty of water.

Reference quality standards

tem Index
In line with HG/T 2841-1997 in line with HG/T2841-2005
Appearance colorless or light yellow transparent liquid white crystalline powder
Active content (ATMP dollars)% ≥ 50.0 50.0 95.0
Amino tris(methylene phosphonic acid)content% ≥-40.0 88.0
Phosphite (in terms PO33-)% ≤ 5.0 3.5-
Phosphate (PO43-to count)% ≤ 1.0 0.8 0.8
Chloride (Cl-dollars)% ≤ 3.5 2.0 1.0
Iron (with Fe2 +) content mg/L ≤-20.0 20.0
Density (20 ℃) g/cm3 ≥ 1.28 1.30- pH (1% aqueous solution) 1.5-2.5 1.5-2.5 2.0


Used for the scale prevention of cooling water system, oil pipeline and boiler; Used as the scale inhibitor for the oil pipeline with high hardness, high salinity and bad water quality; Used as scale inhibitor and corrosion inhibitor for the treatment of cooling water, boiler water, oil field water; Used for circulating cooling water of thermal power plant and an oil refinery.

Chemical Properties

colourless liquid


A powerful complexing agent. A potent acid sphingomyelinase inhibitor.

Amino tris(methylene phosphonic acid) Preparation Products And Raw materials

Raw materials

Preparation Products

Amino tris(methylene phosphonic acid) Suppliers

Global( 251)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan DaKen Chemical CO.,LTD.
+86-371-55531817 CHINA 21671 58
Hangzhou Bayee Chemical Co., Ltd.
0086-571-86990109; 0086-18605816692
0086-571-85775919 China 105 55
Henan Tianfu Chemical Co.,Ltd.
0371-55170693 CHINA 20672 55
Mainchem Co., Ltd.
+86-0592-6210733 CHINA 32447 55
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 China 1861 55
Tianjin Zhongxin Chemtech Co., Ltd.
022-66880086 CHINA 575 58
career henan chemical co
+86-371-86658258 CHINA 30001 58
Chemwill Asia Co.,Ltd.
86-21-51861608;;; CHINA 23980 58
Hubei Jusheng Technology Co.,Ltd.
027-59599243 CHINA 28236 58
Haihang Industry Co.,Ltd
+86 531 8582 1093 CHINA 8918 58

View Lastest Price from Amino tris(methylene phosphonic acid) manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2019-07-11 Amino tris(methylene phosphonic acid)
US $1.00 / KG 1KG 99% 25kg career henan chemical co

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