CAS: 6419-19-8
Molecular Formula: N(CH2PO3H2)3C
Molecular weight: 299.05
1, Properties and usage
ATMP has excellent chelation, low threshold inhibition and lattice distortion ability. in water system ,it can prevent scale formation, particularly for calcium carbonate. in water, ATMP has good chemical stability and is hard to be hydrolyzed. At high concentration, it has good corrosion inhibition.
ATMP can be used in thermal power plant, recirculated cooling water of oil refinery, and recycle waterflood system of oilfield.. 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, easily soluble in water, easy moisture absorption, particularly suitable for using in winter and freezing districts. Because of its high purity, it can be used in woven & dyeing industries and as metal surface treatment agent.
2, Specification:
ITEMS
Index
Appearance
Colorless or light yellow transparent liquid
Whitecrystal powder
Active content (asATMP) % ¡Ý
50.0
50.0
92.0
Phosphorous acid (as PO33- )%
5.0
3.5
--
Phosphoric acid (as PO43- )%
1.0
0.8
0.8
pH (1% Water Solution)
1.5-2.5
1.5-2.5
¡Ü2.0
Chloride (as CL- )%
3.5
2.0
2.0
Fe(as Fe3+) ppm ¡Ü
--
20.0
20.0
Density (20oC) g/cm3¡Ý
1.28
1.30.
3, Application range&using method:ATMP is usually used together with other organophosphoric acid, polycarboxylic acid and salt to built all organic alkaline water treatment agent. ATMP can be used in many different circulating cool water system. The recommended dosage is 5-20mg/L. As corrosion inhibitor, The recommended dosage is 20-80mg/L.
4,Safety Protection:ATMP is Acidity, Avoid contact with eye and skin, once contacted, flush with water.
Package and Storage:ATMP liquid: Normally In 30kg or 250kg net Plastic Drum;ATMP solid: 25kg inner liner polyethylene (PE) bag, outer plastic woven bag, or confirmed by clients request.Storage for ten months in room shady and dry place.
CAS :2809-21-4
Molecular Formula:C2H8O7P2
Molecular weight: 206.02
1, Properties
HEDP is an organophosphoric acid corrosion inhibitor. It can chelate with Fe, Cu, and Zn etc. metal ions and form stable complex compound. It can dissolve the oxidized materials on these metals'surfaces. Under250OC HEDP shows excellent scale and corrosion inhibition ability. HEDP has good chemical stability under high pH value, hard to be hydrolyzed, and hard to be decomposed under ordinary light and heat conditions. Its acid/alkali and chlorine oxidation tolerance are better than that of other organophosphoric acids (salt). HEDP can react with metal ions in water system to form hexa-element chelating complex, with calcium ion in particular. Therefore, HEDP has good antiscale and visible threshold effects. When built together with other water treatment chemicals, it shows good synergistic effects.
The solid of HEDP is high purity product, suitable for using in winter and freezing districts. it is quite suitable for using as cleaning agent in electronic fields and as additives in daily chemicals.
2, Specification:
ITEMS
Index
Appearance
Colorless or light yellow transparent liquid
White crystal powder
Active content (as HEDP) % ¡Ý
50.060.0
89.0
Phosphorous acid (as PO33-)%¡Ü
2.02.0
0.80
Phosphoric acid(asPO43- )% ¡Ü
0.80.8
0.50
Chloride (as Cl-)% ¡Ü
1.01.0
0.10
pH (1% solution) ¡Ü
22
2.0
Density(20OC)g/cm3 ¡Ý
1.341.40
¡ª¡ª
Fe ion ppm ¡Ü
10 10
5.0.
3,HEDP Application range&using method
HEDP is widely used in the in circulating cool water system of electric power, chemical industry, metallurgy, fertilizer, etc. and widely used as a scale and corrosion inhibitor of low-pressure boilers, field waterflood, oil pipeline.
In light&textile industry, HEDP is used as detergent for metal and nonmetal. In dyeing industry, HEDP is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, HEDP is used as chelating agent. The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent. Usually, HEDP is used together with polycarboxylic acid.
4,Safety Protection:HEDP is Acidity, Avoid contact with eye and skin, once contacted, flush with water.
Package and Storage:ATMP liquid: Normally In 30kg or 250kg net Plastic Drum;ATMP solid: 25kg inner liner polyethylene (PE) bag, outer plastic woven bag, or confirmed by clients request.Storage for ten months in room shady and dry place.
CAS:1429-50-1
Molecular Formula: C6H12O12N2P4Na8C
Molecular weight: 612.13
1, Properties
EDTMPS is nitrogenous organic polyphosphonic acid, a part of cathodic corrosion inhibitor. Its corrosion inhibition is 3~5 times better than that of inorganic polyphosphate. It is miscible with water, innocuous and none pollution to environment, has good chemical stability and temperature tolerance. It shows excellent scale inhibition ability under temperature 200oC. It can dissociate into 8 positive-negative ions, thus can chelate with many metal ions to form polymer reticulation complex, to destroy the normal crystallization of calcium scale. EDTMPS shows better antiscale effects to calcium sulfate and barium.
2, Specification:
Items
Index
Appearance
Clear yellow to umber transparent liquid
Active component (as EDTMPS)% ¡Ý
30.0
Organic phosphonic acid(asPO43- )% ¡Ý
10.0
Phosphorous acid (as PO33- )%¡Ü
5.0
Phosphoric acid (asPO43- )%¡Ü
1.0
pH (1% water solution)
9.5-10.5
Density (20oC) g/cm3¡Ý
1.25
Chloride (as Cl-)%¡Ü
3.0.
3,Application range&using method:EDTMPS can be used as corrosion inhibitor in circulating cool water system and boiler water. It is a chelating agent in non-cyanogen electroplating industry and a water-softening agent in printing & dyeing industry. When used alone, 2~10mg/L is preferred. When built with HPMA by ratio ETDMP:HPMA=1:3, it can be used for low pressure boiler. It can also be built with BTA, PAAS and zinc salt.Organic phosphonic acid
Package and Storage:Normally EDTMPS packed with 25kg net Plastic Drum, or packed as customer¡¯s required. Storage for ten months in room shady and dry place.
CAS: 15827-60-8
Molecular Formula: C9H28O15N3P5
Molecular weight: 573.2
1, Properties:DTPMPA is innocuous, easy to be dissolved in acid solution. DTPMPA has excellent scale and corrosion inhibiting and temperature tolerance ability. DTPMPA can inhibit the scale formation of carbonate, sulfate and phosphate.Under situation of alkali environment and high temperature (above 210oC) DTPMPA has better scale and corrosion inhibition effect than other organophosphines.
2, Specification:
Items
Index
Appearance
Yello Brow or red brown viscous liquid
Active acid % ¡Ý
50.0
Phosphorous acid (as PO33-)% ¡Ü
3.0
Chloride (as Cl-)% ¡Ü
12-17
Density (20oC) g/cm3
1.35-1.45
pH (1% solution) ¡Ü
2.0
Fe ppm ¡Ü
35.
3,Application range&using method
DTPMPA can be used as scale and corrosion inhibitor in circulating cool water system and boiler water, and especially good in alkali circulating cool water system without additional pH regulation, It can also be used as scale and corrosion inhibitor in oilfield refill water, cool water and boiler water with high concentration of barium carbonate. When used alone, little scale sediment is found even none of dispersant is used.
DTPMPA can also be used as peroxide stabilizer, chelating agent in woven & dyeing industry, pigment dispersant, microelement's carrying agent in fertilizer and concrete modifier. In addition, DTPMPA is used in papermaking, electroplating, acid cleaning and cosmetics.
4.,Safety Protection:Acidity, Avoid contact with eye and skin, once contacted, flush with water.
Package and Storage:Normally In 25kg net Plastic Drum, IBC drum can also be used as required. Storage for ten months in room shady and dry place.
