CAS No. 6419-19-8
Molecular Formula: N(CH2PO3H2)3 Molecular weight: 299.05
Structural Formula:
Properties:
Nitrilotrimethylphosphonic Acid has excellent chelation, low threshold inhibition and lattice distortion ability. It can prevent scale formation, calcium carbonate in particular, in water system. Nitrilotrimethylphosphonic Acid(NTP) has good chemical stability and is hard to be hydrolyzed in water system. At high concentration, it has good corrosion inhibition.
Nitrilotrimethylphosphonic Acid(NTP) is used in industrial circulating cool water system and oilfield water pipeline in fields of thermal power plant and oil refinery plant. Nitrilotrimethylphosphonic Acid(NTP) can decrease scale formation and inhibit corrosion of metal equipment and pipeline. Nitrilotrimethylphosphonic Acid(NTP) can be used as chelating agent in woven and dyeing industries and as metal surface treatment agent.
The solid state of Nitrilotrimethylphosphonic Acid(NTP) 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 content, % | 50.0min | 95.0min |
| Phosphorous acid(as PO33-), % | 3.5max | 3.5max |
| Phosphoric acid(as PO43-), % | 0.8max | 0.8max |
| Chloride (as Cl–), % | 1.0 max | 1.0 max |
| pH (1% water solution) | 2.0 max | 2.0 max |
| Fe, mg/L | 20.0max | 20.0max |
| Density (20℃), g/cm3 | 1.30 min | – |
| Colour APHA (Hazen) | 40.0max | – |
Usage:
Nitrilotrimethylphosphonic Acid(NTP) is usually used together with organophosphoric acid, polycarboxylic acid and salt to built all organic alkaline water treatment agent. Nitrilotrimethylphosphonic Acid(NTP) 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:
Nitrilotrimethylphosphonic Acid(NTP) liquid: 200L plastic drum,IBC(1000L),customers’ requirement.
Tris(Methylene Phosphonic Acid) Amine solid: 25kg/bag,customers’ requirement.
Storage for ten months in shady room and dry place.
Safety Protection:
Acidity, Avoid contact with eye and skin, once contacted, flush with water.