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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;NitriL;(nitrilo;dowelll37;Amino tris;ferrofos509;Dequest 2000;Briquest 301
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
storage temp. 
Sealed in dry,Room Temperature
Stable. Incompatible with bases, strong oxidizing agents.
CAS DataBase Reference
6419-19-8(CAS DataBase Reference)
EPA Substance Registry System
Aminotri(methylene phosphonic acid) (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(6)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 72568 Nitrilotri(methylphosphonic acid) ≥97.0% (T) 6419-19-8 10g $106 2020-08-18 Buy
Sigma-Aldrich 72568 Nitrilotri(methylphosphonic acid) ≥97.0% (T) 6419-19-8 50g $416 2020-08-18 Buy
TCI Chemical N0474 Nitrilotris(methylenephosphonic Acid) (ca. 50% in Water, ca. 2.2mol/L) 6419-19-8 25mL $35 2021-03-22 Buy
TCI Chemical N0474 Nitrilotris(methylenephosphonic Acid) (ca. 50% in Water, ca. 2.2mol/L) 6419-19-8 500mL $128 2021-03-22 Buy
Sigma-Aldrich 144797 Nitrilotris(methylene)triphosphonic acid solution 50?wt. % in H2O 6419-19-8 100g $45.1 2021-03-22 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( 305)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan DaKen Chemical CO.,LTD.
+86-371-66670886 China 21032 58
Hangzhou Bayee Chemical Co., Ltd.
0086-571-85775919 China 105 55
Henan Tianfu Chemical Co.,Ltd.
0371-55170693 CHINA 22607 55
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 China 3001 55
Tianjin Zhongxin Chemtech Co., Ltd.
022-66880086 CHINA 537 58
Hubei Jusheng Technology Co.,Ltd.
027-59599243 CHINA 28229 58
Jinan Finer Chemical Co., Ltd
+8615508631887 +86-531-88989536
+86-531-88989539 CHINA 1310 58
Hebei Guanlang Biotechnology Co., Ltd.
+8619930503282 China 5392 58
hdzhl biotechnology co., ltd
86-13032617415 CHINA 1275 58
Xiamen AmoyChem Co., Ltd
+86 592-605 1114 CHINA 6369 58

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

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-09-26 Aminotrimethylene phosphonic acid
US $0.00 / g 100g 99.99% 10000 Jiangsu Monade Biological Technology Co., Ltd.
2021-09-07 TMP(Amino Trimethylene Phosphonic Acid)
US $20.00 / Kg/Drum 25Kg/Drum 99.99% 1 ton per week Wuhan Mulei New Material Technology Co. Ltd
2021-08-26 Amino Trimethylene Phosphonic Acid
US $10.70 / Kg/Drum 10g 50% 10000kg Hebei Crovell Biotech Co Ltd

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