1 Hydroxyethylidene 1,1 Diphosphonic Acid Manufacturers HEDP Phosphonate
CAS No.: 2809-21-4, Molecular Weight: 206.02, Chemical Formula: C2H8O7P2.
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MSDS Sheet of Hydroxy Ethylidene Diphosphonic Acid HEDP Manufacturers
Synonyms: HEDP; HEDP (A); HEDPA; ETIDRONIC ACID; 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid; Hydroxyethylidene-1,1-diphosphonicacid(HEDP); 1-HYDROXYETHYLIDENEDIPHOSPHONIC ACID; Hydroxyethylidene Diphosphonic acid (HEDP); 1-hydroxy-1,1-Ethanediyl ester; Hydroxy Ethylidene Diphosphonic Acid
Specifications of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid Specifications 1-Hydroxyethylidene-1,1-Diphosphonic Acid
Appearance Clear colorless to pale yellow aqueous solution Active content 58-62% Phosphorous Acid as PO3 2.0% max Phosphoric Acid as PO4 0.8% pH of 1% solution 2% max Specific gravity 1.43-1.46 (Water is 1) Iron as Fe 10 ppm max Chloride as Cl 100 ppm max Color (APHA) 30 max Ca sequestrantion mg CaCO3/g 480 min Acetic Acid 1% max HEDP can also be offered in lower chloride content Sodium or Calcium salt of HEDP is also offered The material is also offered with lower phosphorous acid and phosphoric acid The material is also offered as 90% white crystals or powder
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid or 1-Hydroxyethylidene-1,1-Diphosphonic Acid or Hydroxy Ethylidene Diphosphonic Acid or HEDP is mainly used as a scale and corrosion inhibitor, chelating (sequestrating), deflocculating agent in cooling and boiler water treatment, textile dying detergent etc.
In light woven industry, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid or 1-Hydroxyethylidene-1,1-Diphosphonic Acid or 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, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid or 1-Hydroxyethylidene-1,1-Diphosphonic Acid or HEDP is used together with polycarboxylic acid.
Packing & Storage:
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid or 1-Hydroxyethylidene-1,1-Diphosphonic Acid or HEDP is generally packed in 250kg plastic drums. It can be packed as per buyers requirement. Store in a cool dry ventilated area, away from incompatible substances. Keep containers tightly closed. Storage for ten months in room shady and dry place.
Hydroxy Ethylidene Diphosphonic Acid or 1-Hydroxyethylidene-1,1-Diphosphonic Acid or HEDP Phosphonate 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 metalsí 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 light and heat. 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 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid or Hydroxy Ethylidene Diphosphonic Acid or 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 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid or 1-Hydroxyethylidene-1,1-Diphosphonic Acid or HEDP Phosphonate 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.
Hydroxy Ethylidene-Diphosphonic Acid manufacturers;
1-Hydroxyethylidene-1,1-Diphosphonic Acid manufacturers;
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid manufacturers; HEDP Phosphonate manufacturers
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Organic Products BHA Butylated Hydroxyanisole BHT Butylated Hydroxytoluene TBHQ Tertiary Butylhydroquinone Citric Acid Hydroxyethylidene Diphosphonic Acid HEDP Hydrolyzed Polymaleic Anhydride HPMA Disodium EDTA & Edetic Acid Erythorbic Acid Furfuryl Alcohol Glycine Isatoic Anhydride Methyl & Dimethyl Anthranilate Maleic Acid Phosphonono butanetri carboxylic acid PBTC Potassium Phthalimide Polyquaternium WSCP Pentaerythritol Phthalic Acid Salicylic Acid Sulfamic Acid Sodium Hydroxymethanesulfonate or Sodium Formaldehyde Bisulfite Sodium Glutaraldehyde Bisulfite Bisulphite Tetrakis (Hydroxymethyl) Phosphonium Sulfate THPS Deicer Anti icing Snow melting
Hydroxy Ethylidene Diphosphonic Acid manufacturers; HEDP manufacturers, suppliers, exporter, importers
17 April, 2013