Water treatment chemical
The product families include antiscalant, corrosion inhibitors, biocide agents, cleaning agents, pretreatment filming agents, chelating agents, dispersants, RO membrane chemicals and etc., covering wide ranges from single to complex agents. The products are widely used in industrial circulating water system, boiler and heating water system.

  HPAA (2-Hydroxyphosphonocarboxylic Acid) ?(through the mail address ((rita at thwater dot com)) to make contact with me directly) CAS 23783-26-8 Properties of HPAA: 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 of HPAA: Appearance of HPAA: Dark umber transparent viscous liquid Solid content of HPAA : 47.0-50.0 percent Phosphorous acid of HPAA (as PO33-): 4.0 percent max Density of HPAA (20centigrade): 1.30 g/cm3 min pH of HPAA (1percent solution) : 1.0-3.0 ? Usage of HPAA: 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. ? (through the mail address ((rita at thwater dot com)) to make contact with me directly)

  PAPE (Polyhydric alcohol phosphate ester) PAPE is a new kind of water treatment chemicals. PAPE has good scale and corrosion inhibition ability. Because more than one ployethylene glycol group is introduced into the molecular, the scale and corrosion inhibition for calcium scale is improved. PAPE has good inhibition effect for barium and strontium scales. PAPE has good scale inhibition effect for calcium carbonate and calcium sulfate, PAPE can mix well with polycarboxylic acid, organophoronic acid, phosphate and zinc salt. PAPE can be used as scale inhibitor for oilfield (recommended as alternatives of Nalco Visco 953) and industrial cool water system. Appearance of PAPE: Colorless or light yellow transparent liquid Solid content of PAPE:? 50.0 percent min Total phosphoric acid of PAPE (PO43-): 30.0 percentmin Organophosphonic acid of PAPE (PO43-): 15percent min pH of PAPE (1percent solution): 2.0-3.0

  PBTCA (2-Phosphonobutane -1,2,4-Tricarboxylic Acid) CAS No. 37971-36-1??????????????????????????? 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. PBTCA can improve zinc salt solubility, has good chlorine oxidation tolerance and good composite synergy. Specification of PBTCA: Appearance of PBTCA:Colorless or light yellow transparent liquid Active acid of PBTCA:? 50.0 percent min Phosphorous acid of PBTCA (as PO33-): 0.8percent max Phosphorous acid of PBTCA (as PO43-): 0.5 percentmax Density of PBTCA (20centigrade): 1.27 g/cm3 min pH of PBTCA (1percent solution): 1.5~2.0 ? Usage of PBTCA: PBTCA is a high efficient agent as scale and corrosion inhibitor. PBTCA is the excellent stabilizer for zinc salt. PBTCA 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. PBTCA can be used in situations of high temperature, high hardness, high alkali and high concentration index. In lavation fields, PBTCA is used as chelating agent and metal detergent. (through the mail address ((rita at thwater dot com)) to make contact with me directly)

  DTPMPA (Diethylene Triamine Penta (Methylene Phosphonic Acid)) CAS 15827-60-8????????????????????????????????????? DTPMPA is innocuous, easy to be dissolved in acid solution. DTPMPA has excellent scale and corrosion inhibition and good thermal tolerance ability. DTPMPA can inhibit the scale formation of carbonate, sulfate and phosphate. On situation of alkali environment and high temperature (above 210centigrade) DTPMPA has better scale and corrosion inhibition effect than other organophosphines. ? Specification of DTPMPA: Appearance of DTPMPA: Brown transparent liquid Active acid of DTPMPA:? 48.0-52.0percent Phosphorous acid of DTPMPA ?(as PO33-) :3.0percent max Chloride of DTPMPA (as Cl-): 12-17percent Density of DTPMPA (20centigrade): 1.35-1.45 g/cm3 pH of DTPMPA (1percent solution): 2.0 Fe of DTPMPA : ?35 ppm max ? Usage of DTPMPA: DTPMPA can be used as scale and corrosion inhibitor in circulating cool water system and boiler water, and especially in alkali circulating cool water system without additional pH regulation, DTPMPA can also be used 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 carrying agent in fertilizer and concrete modifier. In addition, DTPMPA is used in papermaking, electroplating, acid cleaning and cosmetics. ?

  EDTMPA (Solid) (Ethylene Diamine Tetra (Methylene Phosphonic Acid)) ? CAS 1429-50-1?????????????????????????????????????????????? EDTMPA is white crystal powder at room temperature, with melting point 215-217centigrade, hard to be dissolved in water, the solubility is less that 5percent 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, EDTMPA 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 of EDTMPA: Appearance of EDTMPA: White crystal powder Active acid of EDTMPA : 95.0percent min Total phosphonic acid of EDTMPA (as PO43-):? 82.0percent ?min Dryness weight loss of EDTMPA : 2.0 percent max Fe of EDTMPA: 5 ppm max Cl percent of EDTMPA: 0.1 max pH of EDTMPA (1percent solution) :2.0 max Our company can produce 99percent (chromatograph purity) and high purity product on demand of clients. ?? EDTMPA Solid, EDTMPS, EDTMPS liquid, EDTMP, EDTMPA, EDTA ? (through the mail address ((rita at thwater dot com)) to make contact with me directly)

  EDTMPS (Ethylene Diamine Tetra (Methylene Phosphonic Acid) Sodium) ? CAS No. 1429-50-1????????????????????????????? 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. EDTMPS can be fully dissolved in water, innocuous and none pollution to environment, has good chemical stability and thermal tolerance. EDTMPS shows excellent scale inhibition ability under temperature 200centigrade. EDTMPS 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 of EDTMPS: Appearance of EDTMPS : Clear yellow to umber transparent liquid Active component of EDTMPS (EDTMPS): 30.0 percent min Organic phosphonic acid of EDTMPS (asPO43- ): 10.0percent min Phosphorous acid of EDTMPS (as PO33-): 5.0percent max Phosphoric acid of EDTMPS (asPO43- ): 1.0percent max pH of EDTMPS (1percent water solution): 9.5-10.5 Density of EDTMPS (20centigrade): 1.25 g/cm3 min Chloride of EDTMPS (as Cl-): 3.0percent max ? (through the mail address ((rita at thwater dot com)) to make contact with me directly) ?

  HEDP (1-Hydroxy Ethylidene-1,1-Diphosphonic Acid) ? CAS No. 2809-21-4?????????????????????? HEDP is an organophosphoric acid corrosion inhibitor. HEDP can chelate with Fe, Cu, and Zn ions to form stable chelating compounds. HEDP can dissolve the oxidized materials on these metals surfaces. HEDP shows excellent scale and corrosion inhibition effects under temperature 250centigrade. 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, HEDP can be used as cleaning agent in electronic fields and as additives in daily chemicals.?

  ATMP (Amino Trimethylene Phosphonic Acid) ?(via rita at thwater dot com to make order) CAS No. 6419-19-8?????????????????????????????????????? Dequest: 2000 ATMP has excellent chelation, low threshold inhibition and lattice distortion ability. ATMP 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, ATMP 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, ATMP can be used in woven & dyeing industries and as metal surface treatment agent