CAS No. 6419-19-8
Molecular Formula:
N(CH2PO3H2)3
Molecular weight: 299.05
Structural Formula:
Properties:
ATMPA has excellent chelation, low threshold inhibition and
lattice distortion ability. It can prevent scale formation,
calcium carbonate in particular, in water system.
ATMPA has good chemical stability
and is hard to be hydrolyzed in water system. At high concentration,
it has good corrosion inhibition.
ATMPA is used in industrial circulating cool water system
and oilfield water pipeline in fields of thermal power plant
and oil refinery plant. ATMPA can
decrease scale formation and inhibit corrosion of metal equipment
and pipeline.
ATMPA can be used as chelating agent in woven and dyeing
industries and as metal surface treatment agent.
The solid state of ATMPA
is crystal powder, soluble in water, easily deliquescence,
suitable for usage in winter and freezing districts. Because
of its high purity, it can be used in woven & dyeing
industries and as metal surface treatment agent.
Specification:
| items |
index |
| |
Standard |
Solid |
| Appearance |
Clear, Colorless to pale yellow aqueous solution |
White crystal powder |
| Active acid % |
50.0-51.0 |
95.0min |
| Chloride (as Cl-)% |
1.0 max |
1.0 min |
| pH value (1％solution) |
2.0 max |
2.0 max |
| Fe (as Fe3+) (ppm) |
10.0 max |
20.0max |
| Density (20℃)g/cm3 |
1.31-1.35 |
- |
| Colour APHA (Hazen) |
30.0 max |
- |
| Ca Sequestration (mg CaCO3/g) |
450.0 min |
- |
Usage:
ATMPA is usually used together with organophosphoric acid,
polycarboxylic acid and salt to built all organic alkaline water
treatment agent. ATMPA can be used
in many different circulating cool water system. The dosage
of 1-20mg/L is recommended. As corrosion inhibitor, the dosage
of 20-60mg/L is preferred.
Package and Storage:
ATMPA liquid: 200L plastic drum,IBC(1000L),customers’ requirement.
ATMPA
solid: 25kg/bag,customers’ requirement.
Storage for ten months in room shady and dry
place.
Safety Protection:
Acidity, Avoid contact with eye and skin, once
contacted, flush with water.
Synonyms:
ATMP;ATMPA;ATMP(A);Amino Trimethylene Phosphonic
Acid;AMINO TRI(METHYLENE PHOSPHONIC ACID);
Tris(Methylene Phosphonic Acid) Amine
