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current position:Organic phosphonate solid series corrosion inhibition
Tetra sodium salt of 1Hydroxy ethylidene-1,1-diphosphonic acid (HEDP•Na4) 【CAS】3794-83-0(4-Na), 29329-71-3 (x-Na) Molecular Formula:C2H4O7P2Na4 Molecular weight: 294 Structural Formula: 1,Properties: HEDP•Na4 is the sodium salt of HEDP, HEDP•Na4 is an good scale inhibitor for calcium carbonate, it can be used in low pressure boiler water system, circulating water system, industrial and municipal cleaning water system and swimming pool. The solid HEDP•Na4 is white powder, soluble in water, easily deliquescence, suitable for use in winter and freezing districts. It is a kind of organophorphonic acid scale and corrosion inhibitor, can form stable complex with Fe, Cu and Zn ions, it can dissolve the oxides on metal surface, it has good scale and corrosion inhibition effect under 250℃. HEDP•Na4 is widely used in circulating cool water system, medium and low pressure boiler, oil field water pipelines as scale and corrosion inhibitor in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.. In light woven industry, HEDP•Na4 is used as detergent for metal and nonmetal. In dyeing industry, HEDP•Na4 is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, HEDP•Na4 is used as chelating agent. 2, Specification: items index Appearance Colorless to yellowish transparent liquid White powder Active content (as HEDP)% 20.3-21.7 56.0-62.0 Active content (as HEDP•Na4)% 29.0-31.0 79.9-88.4 Fe ppm 25 35.0 Dry weight loss % -- 15 density (20℃)g/cm3 1.26-1.36 -- PH(1% water solution) 11.0-12.0 11.0-12.0 3,Package and Storage: For liquid: Normally In 250kg or 30kg net Plastic Drum, also be used as required. For solid: inner liner polyethylene (PE) bag, outer plastic woven bag, or confirmed by clients. Storage for ten months in room shady and dry place. 4,Safety Protection: Weak acidity, Avoid contact with eye and skin, once contacted, flush with water.
Trisodium Salt of Amino Trimethylene Phosphonic Acid (ATMP.Na3) 【CAS】20592-85-2 (x-Na) Molecular Formula: C3H8NO9P3Na3 Molecular Weight: 365 1, Properties and Uses: ATMP • Na3is the sodium salt of ATMP, it can prevent the formation of scale salt water into the dirt, especially calcium carbonate scale formation.ATMP • Na3apply to thermal power plant, refinery cooling water, oil field injection water system.ATMP • Na3for a number of other additives have good compatibility.ATMP • Na3especially suitable for neutral to acidic formulations, produced no ammonia odor. 2, Specification items index Appearance White crystal Active component (as ATMP)% 78.0 Active component (as ATMP•Na3) % 95.0 Phosphorous acid(as PO33-) % 5.0 Phosphorous acid(as PO43) 2.0 PH (1% water solution) 10.0-11.0 Fe,mg/L 20 max Density (20℃) g/cm3 1.38-1.48 3,application range and using method ATMP • Na3and other organic acid, polycarboxylic acid or polycarboxylic acid and salt of organic alkaline water treatment agent re paired, for a variety of different water quality conditions in the circulating cooling water system, as well asdetergent, chelating agent. 4, package and storage ATMP • Na3packed with 25Kg plastic woven bag,can also be determined by the users.Storage for ten months in room shady place. 5,Safety Protection: Acidity, Avoid contact with eye and skin, once contacted, flush with water. 
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid(HEDP) 【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. Under 250℃ 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 Clear, Colorless to pale yellow aqueous solution White crystal powder Active content (HEDP)% 58.0-62.0 90.0 min Active content (HEDP·H2O)% - 98.0 min Phosphorous acid (as PO33-)% 1.0 max 0.8 max Phosphoric acid (asPO43-)% 0.6 max 0.5 max Chloride (as Cl-) ppm 100.0 max 50.0max pH (1% solution) 2.0 max 2.0 max Density (20℃)g/cm3 1.43-1.47 - Fe,mg/L 10.0 max 5.0 max Colour APHA (Hazen) 30.0 max - Acetic acid % 0.5 max Ca sequestration (mg CaCO3/g) 500.0 min 3,HEDPApplication 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,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. 5,Safety Protection: HEDP is Acidity, Avoid contact with eye and skin, once contacted, flush with water.
Amino Trimethylene Phosphonic Acid(ATMP) 【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, easymoisture 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 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 max pH value (1% solution) 2.0 max 2.0 max Fe,mg/L 10.0max 20.0max Density (20℃)g/cm3 1.31-1.35 - Colour APHA (Hazen) 30.0max - Ca Sequestration (mg CaCO3/g) 450.0 min 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, 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. 5,Safety Protection: ATMP is Acidity, Avoid contact with eye and skin, once contacted, flush with water.

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