Diethylene Triamine Penta ( Methylene Phosphonic Acid ) ( DTPMPA ; DTPMP ; DETPMP ) [CAS No.] 15827-60-8 Dequest: 2060 Synonyms: Phosphonic acid, [(phosphonomethyl)imino] bis [2,1-ethanediyllnitrilobis(methylene)]] tetrakis Molecular Formula: C9H28O15N3P5 Molecular weight: 573.2 Structural Formula: Properties: This product is innocuous, easy to be dissolved in acid solution; it has excellent antiscale corrosion inhibition and good thermal resistance effects. DTPMPA can inhibit the scale formation of carbonate, sulfate and phosphate. On situation of alkali environment and high temperature (above 210℃) this product has better antiscale corrosion inhibition effect than other organophosphines. Specification: (DTPMPA)　 items index Appearance Clear dark umber transparent viscous liquid Active component ％ ≥ 50.0 Phosphorous acid（as PO33-）% ≤ 5.0 chloride （as Cl ） % ≤ 15 Calcium chelating value % ≤ 500 pH value（1％ water solution） ≤ 2.0 Density （20℃）g/cm3 1.35-1.45 Usage: This product can be used as corrosion inhibitor in circulating cool water system and boiler water, and especially as antiscale corrosion inhibitor in alkali circulating cool water system without additional pH regulation. Also, it can be used as antiscale corrosion inhibitor in oilfield refill water, cool water and boiler water with high concentration of barium carbonate. When used alone in composite agents, little scale sediment is found even none of dispersant is used. DTPMPA can be used as peroxide stabilizer, chelating agent in weave and dyeing industry, pigment dispersant, microelement’s carrying agent in fertilizer and concrete modifier. In addition, this product is widely used in fields such as papermaking, electroplating, acid cleaning and cosmetics. Also, It can be used as stabilizer of oxidative disinfectant. Package and Storage: 30kg in plastic barrel, 30kg per barrel. Storage for one year in room shady and dry place.