Shandong Iro Chelating Chemical Co. Ltd.

We are offering tricarboxylic acid molecular formula: c7h11o9p molecular weight: 270.13 structural formula: properties: pbtca has low content of phosphoric, has structural features of both phosphoric acid and carboxylic acid group, which enable its excellent scale and corrosion inhibition properties. Its antiscale property under high temperature is far better than that of organophosphines. It can improve zinc salt solubility, has good chlorine oxidation tolerance and good composite synergy. specification: items index appearance colorless or light yellow transparent liquid active acid � 50.0 min phosphorous acid�as po33-�% 0.8 max phosphorous acid�as po43-�% 0.5 max density �20��g/cm3 1.27 min ph�1� solution� 1.5~2.0 usage: ptbca is a high efficient agent as scale and corrosion inhibitor. It is the excellent stabilizer for zinc salt. It is widely used in circulating cool water system and oilfield refill water system as scale and corrosion inhibitor, suitable to composite with zinc salt and copolymer. It can be used in situations of high temperature, high hardness, high alkali and high concentration index. In lavation fields, it is used as chelating agent and metal detergent. pbtca is usually used together with zinc salt, copolymer, organophosphine, imidazole and other water treatment chemicals. When used alone, the dosage of 5-15mg/l is preferred. package and storage: normally in 250kg net plastic drum, ibc drum can also be used as required. Storage for one year in room shady and dry place. safety protection: acidity, avoid contact with eye and skin, once contacted, flush with water.

We are offering diethylene triamine pentaacetic acid. molecular formula: c14h23n3o10 molecular weight: 393.35 structural formula: property: dtpa is a chelating agent that sequesters metal ions. Thus, dtpa cannot combine with other ingredients in a product. specification: item index appearance white crystalline powder assay ≥99% colority ≤250apha specific gravity: 1.3 bulk density 1300kg/m3 ph value(1% of the solution): 2.1-2.5 chelated value 250-254 mg caco3/g ash: ≤0.2%. water ≤0.3% iron(fe) ≤0.001% heavy metals (pb2+) ≤0.001% chloride(cl-) ≤0.02% usage: dtpa is used in soaps as a water softener, and it is also used to protect dyes and perfumes from combining with metals in solutionetc. package and storage: pp bag lined with polyethylene bag n.w.25kg/bag or as per customers requirement. store in a cool, dry place.

We are offering pentasodium diethylenetriaminepentaacetic. molecular formula: c14h18n3o10na5 molecular weight: 503.26 structural formula: property: dtpa.na5 is a chelating agent that sequesters metal ions so they cannot combine with other ingredients in a product. specification: items index appearance light yellow liquid assay: 40%. Min colority: 250apha max. specific gravity: 1.3 bulk density: 1300 kg/m3 ph value(1% of the solution): 11.0-12 chelated value: 80 mg caco3/g usage: dtpa.na5 is used in soaps as a water softener. It is also used to protect dyes and perfumes from combining with metals in solution. package and storage: packed in 250kgs in polyethylene drum or ibc drum store in a cool, dry place. dtpa.na5 should be store in a tightly closed container.

We are offering ethylene diamine tetraacetic acid disodium. Molecular formula: c10h14n2na2o8 molecular weight：336.21 property: edta.na2 appears white crystal powder, edta.na2 can be soluble in water. Edta.na2 can be not nearly soluble in alcohol, and acid in water solution specification: item index appearance white powder purity ≥99.0% chloride (cl) ≤0.05% sulfate (so4) ≤0.05% iron (fe) ≤0.001% heavy metal (pb) ≤0.001% chelate value (mgcaco3/g) ≥260 ph 4.0-5.0 usage: edta.na2 can be applicable to detergent, dyeing adjuvant, processing agent for fibers, edta.na2 can be used as cosmetic additive, edta.na2 can be used as food additive, edta.na2 can be used in agriculture fertilizer etc. package and storage: packed in paper bags lined with plastic; net-weighted 25kg per bag; stored in cool, dark, ventilated and dry places.

We are offering ethylene diamine tetraacetic acid tetrasodium.molecular formula: c10h12n2na4o8 molecular weight：380.17 property: edta.na4 appears white crystal powder. It can be soluble in water and acid, but cannot be soluble in alcohol and other organic solvents. specification: item index appearance white powder purity ≥99.0% iron (fe) ≤0.001% heavy metal (pb) ≤0.002% chelate value ≥215 mgcaco3/g ph 10.5-11.5 usage: edta.na4 can be used as water-softening agents and catalysts of synthetic rubber, edta.na4 can also be used in printing and as dyeing adjuvants, it is also detergent adjuvants. package and storage: solid products: packed in paper bags lined with plastic; net-weighted 25kg per bag. liquid products: packed in iron drum lined with plastic; net-weighted 200kg per drum.

We are offering ethylene diamine tetraacetic acid ferric sodium.molecular formula: c10h12n2o8fena.3h2o molecular weight: 421.1 properties: edta-fena is used as trace elements in agriculture. It is a kind of stable water-soluble metal chelate with oxidizability; ferrum existed in a chelated state. specifications: item index appearance: brownish yellow or light yellow clean powder chelate ferrum: ≥99% (c10h12n2o8fena • 3h2o) ferrum: ≥13.0% ph value (1% aqueous solution): 3.5-5.5 water-soluble: about 90g/l(20℃), about 120g/l (30℃), about 300g/l(70℃) bulk density: about 650kg/m3 cod (chemical oxygen demand) value: about 570mkg/g usage: edta-fena is used as decoloring agent in techniques for photography. It is also an additive in food industry, edta-fena can be the trace element in agriculture and catalyst in industry package and storage: 25kg woven bag. Stored in a cool dry place, light makes the product devitalized.

We are offering trisodium nitrilotriacetate. molecular formula: c6h6nna3o6 molecular weight：257.08 structural formula: properties: nta.na3 appears white crystal powder. It can be soluble in water, but nearly not soluble in alcohol and acid in water solution. specification: items indexes appearance white powder purity ≥99.0% chloride (cl) ≤0.05% sulfate (so4) ≤0.05% iron (fe) ≤0.001% heavy metal (pb) ≤0.001% ph 10.5-11.5 usage: nta.na3 can be applicable to detergent, dyeing adjuvant. It can be the processing agent for fibers. Nta.na3 can also be used as cosmetic additive and in agriculture fertilizer etc. package and storage: packed in paper bags lined with plastic; net-weighted 25kg per bag. nta.3na should be stored in cool, dark, ventilated and dry places.

We are offering ethylene diamine tetraacetic. molecular formula: c10h16n2o8 molecular weight：292.24 structural formula: properties: white crystal powder, soluble in sodium hydroxide, sodium carbonate and ammonia solution, not soluble in cold water, acid and common organic solvents, and discomposed at 240°c. specifications: item indexes appearance white powder purity ≥99.0% chloride (cl) ≤0.05% sulfate (so4) ≤0.05% iron (fe) ≤0.001% heavy metal (pb) ≤0.001% chelate value (mgcaco3/g) ≥339 ph 2.8-3.0 uses: mainly applied to complexing metal ions, and separating metal; used as water-treating agents and scale-eliminating agents; capable of preventing the harmful effects on production caused by metal ions in water ; also used in the cleaning the boilers in large-scale power plants. packing, storage and transportation: packed in paper bags lined with plastic; net-weighted 25kg per bag; stored in cool, dark, ventilated and dry place. relational production：edta.4na (cas no.: 64-02-8); edta.2na (cas no.: 139-33-3).

We are offering amino trimethylene phosphonic acid. molecular formula: n(ch2po3h2)3 molecular weight: 299.05 structural formula: property: 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. Because of its high purity, it can be used in woven & dyeing industries and as metal surface treatment agent. specifications: items index appearance colorless or light yellow transparent liquid white crystal powder active acid % 48.0-52.0 95 min chloride (as cl-)% 2.0(or1.0) min 1.0 min ph value（1％ solution） 2.0 max 2.0 max fe (as fe3+) (ppm) 20 20 density （20℃）g/cm3 1.33 min — colour apha (hazen) 40 max — use: atmp is usually used together with 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 dosage of 1-20mg/l is recommended. As corrosion inhibitor, the dosage of 20-60mg/l is preferred. package and storage:: atmp liquid: normally in 250kg net plastic drum, ibc drum can also be used as required atmp solid: 25kg inner liner polyethylene (pe) bag, outer plastic woven bag, or confirmed by clients. storage for ten months in room shady and dry place. safety protection: acidity, avoid contact with eye and skin, once contacted, flush with water.

We are offering diphosphonic acid molecular formula: c2h8o7p2 molecular weight: 206.02 structural formula: properties: hedp is an organophosphoric acid corrosion inhibitor. It can chelate with fe, cu, and zn ions to form stable chelating compounds.it can dissolve the oxidized materials on these metals’ surfaces. Hedp shows excellent scale and corrosion inhibition effects under temperature 250℃. 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 state of hedp is crystal powder, suitable for usage in winter and freezing districts. Because of its high purity, it can be used as cleaning agent in electronic fields and as additives in daily chemicals. specification: items index appearance colorless or light yellow transparent liquid white crystal powder active content（hedp）％ 58.0-62.0 89.0 min phosphorous acid（as po33-）% 2.0 max 0.5 max phosphoric acid （aspo43- ）% 0.8 max 0.5 max chloride (as cl-)% 0.01 max 0.01 max ph（1％ solution） 2 max 2 max density （20℃）g/cm3 1.40 — fe ion ppm 10 max 20 max colour apha (hazen) 40 max — usage: hedp is used as scale and corrosion inhibition in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc. In light woven 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. Package and storage: hedp liquid: normally in 250kg net plastic drum, ibc drum can also be used as required hedp solid: 25kg inner liner polyethylene (pe) bag, outer plastic woven bag, or confirmed by clients. Storage for ten months in room shady and dry place. Safety protection: acidity, avoid contact with eye and skin, once contacted, flush with water.　

We are offering ethylene diamine tetraacetic acid calcium disodium.cas no.: 62-33-9 molecular formula: c10h12n2o8cana2•2h2o molecular weight: 410.3 structural formula: properties: edta-cana2 is applied as trace elements in agriculture, and as coloring agent and food additive in food industry environmental aspects: biodegradability: difficult cod (chemical oxygen demand) value: about 580mg / g specifications: item index appearance free-flowing white powder chelated calcium content ≥ 98.0% (c10h12n2o8cana2•2h2o) calcium content ≥ 10.0% ph value (1% aqueous solution) 6.5 - 7.5 ph value (20% aqueous solution) 6.5 - 8.0 aquosity 5.0% - 13.0% heavy metals ≤ 10 mg / kg calcium content: 10 ± 0.5% water-solubility: about 800g / l (20℃) , about 1500g / l (80℃) bulk density about 690kg/m3 usage: edta-cana2, used as separating agent, edta-cana2 is a kind of stable water-soluble metal chelate. Edta-cana2 can chelate multivalent ferric ion. Calcium and ferrum exchange forms the more stable chelate. Edta-cana2 can be used for foliar fertilizers. package and storage: 25kg woven bag. Stored in dry place at low temperature (

We are offering ethylene diamine tetraacetic acid cupric disodium.cas no.: 14025-15-1 molecular formula: c10h12n2o8cuna2 molecular weight: 397.7 structural formula: properties: edta-cuna2 is used as trace elements in agriculture. environmental aspects: biodegradability: difficult cod (chemical oxygen demand) value: about 560mg / g specifications: item index appearance blue powder copper content 15.0±0.5% ph value (1% aqueous solution) 6.5±0.5 water-solubility about 1200g/l (20℃), about 1700g/l (80℃) bulk density about 625kg/m3 usage: used as separating agent, edta-cuna2 is a kind of stable water-soluble metal chelate; copper existed in a chelated state. Edta-cuna2 can chelate multivalent ferric ion. Edta-cuna2 also can be used for foliar fertilizers. package and storage: 25kg woven bag. Stored in a cool dry place, must be tightened after being opened key words: edta-cuna2; edta – cu; edta cupric salt; edta

We are offering ethylene diamine tetraacetic acid manganese disodium.cas no.: 15708-41-5 molecular formula: c10h12n2o8mnna2 molecular weight: 389.1 structural formula: properties: edta-mnna2 is used as trace elements in agriculture environmental aspects: biodegradability: difficult cod (chemical oxygen demand) value: about 500mg / g specifications: item index appearance white particle or powder chelated manganese content ≥ 99% (c10h12n2o8mnna2) ph value (1% aqueous solution) 6.0 - 7.0 chelate level full water-solubility: about 800g/l (20℃), about 1200g/l (80℃) bulk density about 600 - 800kg/m3 usage: edta-mnna2 is used as elements required in foliar fertilization of soil application in the field of agricultural horticulture, edta-mnna2 also as trace elements required in aquaculture. Edta-mnna2 is a kind of stable water-soluble metal chelate, manganese existed in a chelated state. Edta-mnna2 can be used for foliar fertilizers. package and storage: 25kg woven bag.stored in a cool dry place, light makes the product devitalized key words: edta-mnna2; edta-mn; edta manganese salt; edta manganese sodium

We are offering ethylene diamine tetraacetic acid zinc disodium.cas no.: 14025-21-9 molecular formula: c10h12n2na2o8zn molecular weight：399.59 structural formula: property: edta-znna2 is used as trace elements in agriculture. environmental aspects: biodegradability: difficult cod (chemical oxygen demand) value: 555mg / g specification: item index appearance white powder zinc content 15.0 ± 0.5% ph value (1% aqueous solution) 6.0 ± 7.0 dissolubility about 1000g / l (20 ℃), about 1200g / l (80 ℃) bulk density about 625kg/m3 usage: edta-znna2 is a kind of stable water-soluble metal chelate, zinc existed in a chelated state. Edta-znna2 is used as separating agent. Edta-znna2 is a kind of stable water-soluble metal chelate. Edta-znna2 can chelate multivalent ferric ion. Edta-znna2 can be used for foliar fertilizers. package and storage: 25kg woven bag.stored in a cool dry place, must be packaged after being opened. key words: edta-znna2; edta-zn; edta zinc salt; edta

We are offering ethylene diamine tetra, methylene phosphonic acid. cas no.: 1429-50-1 molecular formula: c6h20 n2o12p4 molecular weight: 436.13 structural formula: properties: edtmpa is white crystal powder at room temperature, with melting point 215-217℃, hard to be dissolved in water, the solubility is less that 5% at room temperature, easy dissolved in ammonia. Edtmpa has strong metal ion chelating capacity, whose chelating constant with cuprum ion is larger than that of edta. edtmpa has high capacity for chelating metal ions. The complex constant with cu is the largest in all chelating agents including edta. Edtmpa is a kind of high-pure grade reagent and innocuous, it can be used as detergent in semiconductor chip to prepare integrated circuit, as carrying agent for radioelement in medical industry, and as agent for inspection and therapy. The chelating capacity of edtmpa largely exceed that of edta and dtpa, and can replace edta for chelating agent at almost any situation. specification: items index appearance white crystal powder active acid % 95.0min total phosphonic acid（as po43-）% 82.0 min dryness weight loss % 2.0 max fe ppm 5 max cl % 0.1 max ph（1％ solution） 2.0 max our company can produce 99% (chromatograph purity) and high purity product on demand of clients. package and storage: 25kg inner liner polyethylene (pe) bag, outer plastic woven bag, with agreement with export environment requirement, or confirmed by clients. Storage for one year in room shady and dry place. Keywords:edtmpa

We are offering ethylene diamine tetra (methylene phosphonic acid) sodium. cas no.: 1429-50-1 molecular formula: c6h12o12n2p4na8 molecular weight: 612.13 structural formula: 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 can be fully dissolved in water, innocuous and none pollution to environment, has good chemical stability and thermal tolerance. It shows excellent scale inhibition ability under temperature 200℃. 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 sulfate. specification: items index appearance clear yellow to umber transparent liquid active component（edtmps）％ 28.0min organic phosphonic acid（aspo43- ）％ 10.0min phosphorous acid（as po33-）％ 5.0max phosphoric acid （aspo43- ）％ 1.0max ph（1％ water solution） 9.5-10.5 density （20℃）g/cm3 1.25min chloride (as cl-)％ 3.0max usage: 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. package and storage: normally in 250kg net plastic drum, ibc drum can also be used as required. Storage for ten months in room shady and dry place. keywords:edtmps

We are offering hexamethylenediaminetetra (methylenephosphonic acid). cas no.: 23605-74-5 molecular formula: c10h28n2o12p4 molecular weight: 492.3 structural formula: properties: hmdtmpa is a white crystal powder at room temperature, slightly soluble in water, with solubility less than 5%. hmdtmpa can inhibit most scale formation such as calcium carbonate, calcium sulfate, barium sulfate and ferric oxide. As water treatment chemicals, hmdtmpa is used as scale inhibitors for calcium sulfate and barium sulfate, for calcium sulfate in particular. It has high scale inhibition rate and can last for long effective time. Hmdtmpa can be used for crush treatment in oilfield and for water treatment in boiler. specification: items index appearance white crystal powder active component (as hdtpma-) ％ 98.0 min chloride （cl-）% 0.5 max ph value (1% water solution) 2.0 max fe3+，mg/l 35 max package and storage: 25kg inner liner polyethylene (pe) bag, or conformed to export environmental requirement, or confirmed by clients. Storage for twelve month in room shady and dry place. keywords:hmdtmpa.

We are offering 2-hydroxyphosphonocarboxylic acid. cas no.: 23783-26-8 molecular formula: c2h5o6p molecular weight: 156 structural formula: properties: hpaa is chemically stable, hard to be hydrolyzed, hard to be destroyed by acid or alkali, safety in use, no toxicity, no pollution. Hpaa can improve zinc solubility. Its corrosion inhibition ability is 5-8 times better than that of hedp and edtmp. When built with low molecular polymers, its corrosion inhibition effect is even better. specification: items index appearance dark umber transparent viscous liquid solid content % 47.0-50.0 phosphorous acid（as po33-）% 4.0 max density （20℃）g/cm3 1.30 min ph（1％ solution） 1.0-3.0 usage: hpaa is mainly used as cathode corrosion inhibitor in oilfield refill water system in fields such as steel & iron, petrochemcal, power plant and medical industries. When built with zinc salt, the effect is even better. package and storage: normally in 250kg net plastic drum, ibc drum can also be used as required. Storage for one year in room shady and dry place. keywords:hpaa.