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Producer Dongtao Chemical Co., Ltd.Dongtao Chemical Co., Ltd. was founded in 2004, the existing staff of 130. The annual turnover of 30000000 dollars, the annual production capacity of 30000 tons. Product packaging is divided into 200L drums, 1000L IBC. The product price can E-mail or telephone consulting company sales department.  Thank you for your trust!Quality first, price concessions! The company is committed to the field of specialty chemicals for water treatment and application development,professional production of water for industrial cooling water treatment agent scale and corrosion inhibitor,scale dispersants,fungicides,cement stripping visco agent,pre-film,dispersants,chelating agents and so on,are widely used in iron and steel,chemicals,power,textile,printing and dyeing,paper,petroleum, environmental protection,industrial water treatment industry and urban water supply and drainage applications.Over the years,with reliable products and quality service has won the majority of users trust and praise.antisludging agent,dispersant,scale inhibition,dirt dispersion agent,corrosion inhibitor and polymer are used in iron are  used in iron and steel,chemicals,power,textile,printing and dyeing,paper,petroleum,industrial water treatment. scale inhibitor. Guided by the quality of the factory in order to survive,in good faith and development,services and efficient,management,will be dedicated to provide you with satisfied products.General manager,Xiaodong Kan,carrying all the staff to welcome old and new friends to cooperate here!  

our products....
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid(HEDP)

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. HEDP 1-Hydroxy Ethylidene-1 1-Diphosphonic Acid 2809-21-4 .....



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Tetra sodium salt of 1Hydroxy ethylidene-1,1-diphosphonic acid(HEDP•Na4)

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:C2H4O7P2 Na4  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. .....



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etra sodium salt of Amino Trimethylene Phosphonic Acid(ATMP•Na4)

Tetra sodium salt of Amino Trimethylene Phosphonic Acid (ATMP•Na4) 【CAS】20592-85-2    Molecular Formula:C3H8NO9P3Na4    Molecular weight: 387 1,Properties and usage: ATMP•Na4 is the salt of ATMP, it can inhibit the scale formation, calcium carbonate in particular, in water system. ATMP•Na4 can be used in circulating cool system in power plant, oil refinery plant and oilfield refill water system. ATMP•Na4 has good synergistic effects with other additives, in neutral to acidic condition, no ammonia smell is let off. 2, Specification:   items index Appearance Colorless or light yellow transparent liquid Active content (ATMP)% 29.4-32.4 Active content (ATMP•Na4) % 38.0-42.0 PH (1% water solution) 6.5-7.5 Fe(Fe3 )ppm 35 Density (20℃) g/cm3 1.35-1.45 3,Application range&using method ATMP•Na4 is used together with other organophosphonic acid, polycarboxylic acid or salt to form organic alkaline agents, it is used in circulating cool water system for all water quality. 4,Package and Storage: Normally In 30kg or 250kg net Plastic Drum, also be used as required. Storage for ten months in room shady and dry place. 5,Safety Protection: Acidity, Avoid contact with eye and skin, once contacted, flush with water.  .....



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Polyacrylic Acid(PAA)

Polyacrylic Acid(PAA) 【CAS】9003-01-4 Structure:   1,Properties: PAA is innoxious and soluble in water, it can be used in situations of alkaline and high concentration without scale sediment. PAA can disperse the microcrystals or microsand of calcium carbonate, calcium phosphate and calcium sulfate. PAA is used as scale inhibitor and dispersant for circulating cool water system, papermaking, weave, dyeing, ceramic, painting, etc. 2,Specification items index Appearance Colorless or light yellow transparent liquid Solid content % 30 50 Free monomer (CH2=CH-COOH) % 0.5 0.5 Density (20℃)g/cm3 1.09 1.2 pH(1%  solution) 3.0 3.0 Limiting viscosity(30℃)dl/g 0.06-0.10 - Note: 40%,45% Polyacrylic Acid (PAA) can be supplied on demands. 3,Application range&Using method: PAA can be used as scale inhibitor and dispersant in circulating cool water systems in power plants, iron & steel factories, chemical fertilizer plants, refineries and air conditioning systems. Dosage should be in accordance with water quality and equipment materials. When used alone, 1-15mg/L is preferred. 4,Package and Storage:   Normally In 25kg net Plastic Drum. Storage for one year in room shady and dry place. 5,Safety and Protection:   To eye and skin have hormesis, but no acute toxicity.   PAAS Sodium Polyacrylate PAA Polyacrylic Acid 9003-1-4 Scale inhibitor and dispersant .....



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Isothiazolinones(CIT/MIT)

Isothiazolinones(CIT/MIT) 【CAS】26172-55-4,2682-20-4 Molecular Formula:C21H38NCl Molecular weight: 115.16 Structure:     2-methyl-4-thiazoline-3-ketone 5-chloro- methyl-4-thiazoline-3-ketone 1,Properties and Usage: Isothiazolinones is composed of 5-chloro-2-methyl-4-thiazoline-3-ketone (CMI) and 2-methyl-4-thiazoline-3-ketone (MI). The bactericidal effect of Isothiazolinones is carried out through breaking the bond between bacteria and algae protein. When contacted with microbes, Isothiazolinones can quickly inhibit their growth, thus leading to death of these microbes. Isothiazolinones has strong inhibition and biocidal effects on ordinary bacteria, fungi and alga, and has many advantages such as high biocidal efficiency, good degradation, no residual, safety in operation, good compatibleness, good stabilization, low cost in operation. Isothiazolinones can mix with chlorine and most cation, anion, and non-ionic surfactants. When used at high dosage, its biosludge stripping effect is excellent. Isothiazolinones is a kind of fungicidal with properties of broad spectrum, high efficiency, low toxicity and non-oxidative, it is the ideal biocidal in industrial circulating cool water system and in wastewater treatment in oilfield, papermaking, pesticide, cutting oil, leather, detergent and cosmetics etc.. 2,Specification:Conform to HG/T3657-2008   items index Grade I Grade II Appearance colorless to Light yellow transparent liquid Colorless to Light yellow transparent liquid Active content %≥ 14.0 -15.0 1.5-1.8 pH value(as it) 2.0-4.0 2.0-5.0 Density(20℃)g/cm3 1.26-1.32 1.02-1.05 CMI/MI (wt %) 2.5 - 3.4 2.5-3.4   Notes: 2%, 4% and 8% or any concentration can be supplied on demands. 3,Using method: When used as sludge stripper for grade II, the dosage of 150-300mg/L is preferred, when used as boicide, the dosage of 80-100mg/L is preferred, and charges every 3-7 days. No used together with oxidative fungicidal such as chlorine, and no used in cooling water system containing sulfur. When used together with quaternary amine, the effect will be better. When used as industrial fungicide, the dosage of 0.05-0.4% is preferred.  4,Package and Storage: 25kgin plastic barrel, or confirmed by clients. Storage for ten months in room shady and dry place. 5,Safety Protection: Corrosive, Avoid contact with eye and skin, Wear splash resistant safety goggles and rubber glores .Once contacted , flush with water.   1227 Corrosion inhibitor CIT/MIT Isothiazolinones 26172-55-4 2682-20-4 Bactericidal Algicide .....



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DT-503 Scale and Corrosion Inhibitor for Boiler

DT-503Scale and Corrosion Inhibitor for Boiler 1, Properties   DT-503is composite materials that is  made from organic phosphonic acid and poly carboxylic acid polymer, It has high corrosion and scale inhibition performance,excellent temperature tolerance , and can be applied effectively furnace at low pressure boiler water treatment.Boilers is including plumbing, steam, locomotive boilers. DT-503can also be used for corrosion and scale inhibition of desalination, distillation and automotive systems such as control water tank. 2, Specification  items index Appearance Amber liquid pH (1% solution) 10.0-12.0 3,Using method Addagents into the boiler as the proportion of 200g per ton of water, attention to discharging sewage,once per hour,5to10seconds everytime,increase the agents when the boiler runs with scale, discharge sewage usually, After running  10-20days ,the boiler should be shutdown, clean off the scale to prevent dirt from pluging the pipeline, and then become normal operation.If the conditions permit, the concentration of boiler water can be measured, controlled about10times, and other parameters adjusted in accordance with the relevant provisions of the labor sector (such as boiler waterpH10~ 12, etc.).Dosing tanks should be plastic, cement pools should be treated with preservatives, or are easy to be corroded by agents, thereby increase the hardness of the water. The total hardness of boiler water added should be controlled at200mg / Lor less, if the hardness is too high ,use availability lime or other ways to reduce hardness, or DT-503scale inhibition will be affected. 4, Package and Storage DT-503packed with the plastic drum, 25kg/drum, or according to customer′s request.Store in cool place, storage for ten months. 5,Safety Protection:   DT-503is a weak acid, attention to labor protection, avoid contacting with eyes and skin ,once contacted,flush with water.   Boiler dispersant Boiler scale inhibitor Circulating water scale inhibitor power plant scale inhibitor .....



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Methylbenzotriazole(TTA)

Methylbenzotriazole(TTA) 【CAS】29385-43-1 Molecular formula: C7H7N3 Molecular Weight: 133.16 1,Usage TTA can be used as corrosion inhibitor of copper and copper alloy, it also has corrosion inhibition for black metals. This product is absorbed on metal surface to form a thin membrane to protect copper and other metals from corrosion of air and other harmful subjects. The membrane is more uniform. When used together with MBT, the effect is better. 2,Specification:   items index Appearance White or Light yellow particle shape solid Solid content %   ≥ 99.0 Melting point  ℃ 80-86 Ash content  %  ≤ 0.1 Water content  %   ≤ 0.2 3,Using method: First, dissolved with alcohol or alkali, then added into circulating water system, the dosage of 2-10mg/L is preferred. If the metal is badly corroded, 5-10 times of normal dosage should be expected. 4,Package and Storage: 25kginner liner polyethylene (PE) bag, outer plastic woven bag. Storage in room shady and dry place. 5,Safety Protection: Acidity, avoid contact with eye and skin, once contacted, flush with water. .....



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Amino Trimethylene Phosphonic Acid(ATMP)

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.   ATMP Amino Trimethylene Phosphonic Acid ATMP.Na4 ATMP.Kx  Amino Trimethylene Phosphonic Acid,Potassium salt(ATMP•Kx) ATMP•Na5  Penta sodium salt of Amino Trimethylene Phosphonic Acid CAS:6419-19-8 6419-19-8 .....



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