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首頁(yè) > English > Product > Water Treatment Chemicals > Phosphonates Antiscalants, Corrosion Inhibitors an

ATMP Amino Trimethylene Phosphonic Acid

CAS NO6419-19-8

Mol. WT.299.05

Mol. FormulaN(CH2PO3H2)3

Structure

Properties
Specification
Usage
Safety
Package&Storage

ATMP has excellent chelation, low threshold inhibition and lattice distortion ability. It can prevent scale formation, calcium carbonate in particular, in water system. ATMP has good chemical stability and is hard to be hydrolyzed in water system. At high concentration, it has good corrosion inhibition.

ATMP is used in industrial circulating cool water system and oilfield water pipeline in fields of thermal power plant and oil refinery plant. ATMP can decrease scale formation and inhibit corrosion of metal equipment and pipeline. ATMP can be used as chelating agent in woven and dyeing industries and as metal surface treatment agent.

The solid state of ATMP is crystal powder, soluble in water, easily deliquescence, suitable for usage in winter and freezing districts.

Items	Index
Items	HG/T 2841-1997	HG/T 2841-2005
Appearance	Colorless to pale yellow aqueous solution		White crystal powder
Active acid (as ATMP), %	50.0 min	50.0 min	95.0 min
ATMP content, %	——	40.0 min	88.0 min
Phosphorous acid (as PO₃³), %	5.0 max	3.5 max	——
Phosphoric acid (as PO₄^3-), % ≤	1.0 max	0.8 max	0.8 max
pH value (1% solution)	1.5-2.5	1.5-2.5	≤2.0
Chloride (as Cl-)%	3.5 max	2.0 max	1.0 max
Fe（as Fe³⁺），ppm	——	2.0 max	2.0 max
Density (20℃)g/cm3	1.28 min	1.30 min	——
Calcium chelating value，mg/g	400 min	400 min	800 min

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