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CAS NO 2809-21-4 HEDP 98% POWDER,60% LIQUID
Kategori : Wasseraufbereitung - Abfallentsorgung
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CAS NO 2809-21-4 HEDP 98% powder,60% liquid
1.Chemical name: 1-Hydroxyethylidene-1, 1-Diphosphonic Acid
2.Abbreviation: HEDP
3.Molecular Formula: C2H8O7P2
4.Molecular Weight: 206
5.CAS Number: 2809-21-4
6.Specifications:
Appearance: White crystalline powder
Active Acid as HEDP (%): 90.0 min
Phosphorous acid as PO33- (%): 2.5 max
Phosphorous acid as PO43- (%): 0.7 max
7.Application Notes: Noted for its excellent CaCO3 scale inhibition and chlorine stability.
8.Recommended Uses: Cooling water treatment, boiler treatment, I & I cleaners, swimming pool stain prevention, - - metal ion control.
9.If you have any of interest for it, pls enquire us freely, we will be very glad to quote our very competitive price for you!
1.Chemical name: 1-Hydroxyethylidene-1, 1-Diphosphonic Acid
2.Abbreviation: HEDP
3.Molecular Formula: C2H8O7P2
4.Molecular Weight: 206
5.CAS NO.: 2809-21-4
6.Specifications:
Appearance: colorless transparent liquid
Active ingredient: 58.0 to 62.0%
Phosphorous acid (as PO 3 ) 2.5% max.
Phosphoric acid (as PO 4 ) 0.7%max.
Iron(ppm) 35 mg/L
Chloride(cl) 0.5%max.100ppm max
Density (20C) g/cm 3 1.39-1.49
PH (1% water solution) 2.0 max.
calcium sequestation mgcaco3/g 500mg/g
7 Application:
1) A scale and synergistic corrosion inhibitor for iron rust and mineral scale from pipes of cooling circulation water units and boilers;
2) - - metal chelate agent for color fixing and bleaching in textile;
3) Complexing agent for electron plate and scale cleaning agent for - - metals.
4) Recommended Uses: Cooling water treatment, boiler treatment, I & I cleaners, swimming pool stain prevention, - - metal ion control.
8 Packaging and storage:
in 250kgs/plastic drum.
Acidity, Avoid contact with eye and skin, once contacted, flush with water
9 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 non- - metal. 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.
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