1-Hydroxyethylidene-1, 1-Diphosphonic acid HEDP

Description

*-Hydroxyethylidene*1, *-Diphosphonic acid [********4] Abbreviation: HEDP Molecular weight: **6.*2 Specifations: Appearance Clear, Colorless to pale yellow aqueous solution Active Content(as HEDP) *0.0 - *0.0 % Phosphorous acid (as PO**- ) 2.0% max Phosphoric acid (as PO**- ) 0.8% max pH (1% Water Solution) 2.0 max Density (*0) g/cm3 1.*4 - 1.*0 Iron *0ppm max Chlorides (as CL-) **0 ppm max Color (APHA) *0 max. Ca sequestration mg CaCO3/g **0 min Acetic Acid 1.0% max Applications: HEDP(S)is a type of cathodic corrosion inhibitor. Compared with inorganic phosphates, it can be compounded with sodium molybdate, silicate, zinc salt and co-polymer mainly as scale corrosion inhibitor in treatment of cyclic cooling water, oil field flash and boiler ***** is mainly used as a Scale and Corrosion Inhibitor. It&#**9;s also used as chelating (Sequestrating), deflocculating agent in Textile Dying, Detergents etc. Usage: HEDP is usually used together with polycarboxylic acid, to make up whole-organic-alkali or low-phosphor zinc-based agent of water treatment to be used in all kinds of cyclic cooling water systems different from water quality. The dose is generally 2~*0mg/L while HEDP is used ***** dosage of ***0mg/L is preferred as scale inhibitor, ****0mg/L as corrosion inhibitor, and ********0mg/L as detergent. Packing and Storage: Normally In *0kg or **0kg net Plastic Drum, IBC&#**9;s can also be used as required.Stored in cool and ventilated room in one year. Safety Protection: Acidity, Avoid contact with eye and skin, once contacted, flush with water.