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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. |
Instructions |
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 |
Usage |
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. |
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. |
Flammability and Explosibility |
Notclassified |
InChI:InChI=1/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)/p-5
We report here a practical and efficient...
The invention discloses a production pro...
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A method for the manufacture of aminopol...
formaldehyd
nitrilo-tris(methylenephosphonic acid)
N-methyliminobis(methylphosphonic acid)
Conditions | Yield |
---|---|
With
hydrogenchloride; phosphorus(III) oxide; water; ammonium chloride;
at 100 - 110 ℃;
Product distribution / selectivity;
Inert atmosphere;
|
formaldehyd
hexamethylenetetramine
Aminomethylphosphonic acid
nitrilo-tris(methylenephosphonic acid)
(iminobismethylene)bisphosphonic acid
N-methyliminobis(methylphosphonic acid)
Conditions | Yield |
---|---|
With
phosphoric acid;
Mechanism;
Product distribution;
|
P,P',P''-azanetriyltrimethyl-tris-phosphonic acid hexaethyl ester
formaldehyd
N,N-methylenediacetamide
hexamethylenetetramine
Aminomethylphosphonic acid
hydroxymethylphosphonic acid
(N,N-dimethylamino)methylphosphonic acid
(iminobismethylene)bisphosphonic acid