HEDP/1-Hydroxyethylidene-1, 1-Diphosphonic Acid/ Etidronic Acid CAS 2809-21-4

Model NO.
60%
Appearance
Liquid
Type
Industrial Circulating Water Treatment Agent
Transport Package
250kgs Drum
Specification
60%
Trademark
minechem
Origin
China
HS Code
2931901990
Production Capacity
12000mt /Year
Reference Price
$ 2,520.00 - 2,880.00
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Product Description

HEDP  60%     

Chemical Name:      1-Hydroxyethylidene-1,1-diphosphonic acid  
                                Hydroxyethyl diphosphonic acid,   Etidronic Acid
SYNONYMS       :       HEDP     
CAS NO.           :       2809-21-4                   
EINECS.           :       220-552-8
M.F                   :        C2H8O7P2                  
Relative Molecular weight: 206.02
UN No.              :      3265                            
Hazard class     :      8.1
Properties :
HEDP  Corrosion Inhibitor is an organophosphoric acid corrosion inhibitor. It can chelate with Fe, Cu, and Znions to form stable chelating compounds. It can dissolve the oxidized materials on these metals' surfaces.
HEDP Corrosion Inhibitor shows excellent scale and corrosion inhibition effects under temperature 250°C.
HEDP Corrosion Inhibitor 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 Corrosion Inhibitor can react with metal ions in water system to form hexa-element chelating complex, with calcium ion in particular.
Therefore, HEDP Corrosion Inhibitor has good antiscale and visible threshold effects. When built together with other water treatment chemicals, it shows good synergistic effects.
Specification :
Appearance Colorless to Light Yellow Transparent Liquid
Active Content (HEDP)% 58.0-62.0
Phosphorous Acid (as PO3 3- )% 1.0 Max
Phosphoric Acid (asPO4 3- )% 0.5 Max
Chloride (as Cl-)% 0.3 Max
PH (1% Solution) 2   Max
Density (20°C)g/c m 3 1.40 Min
Usage :
1. HEDP is used as scale and corrosion inhibition in circulatingcool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc..
2. In light woven industry, HEDP is used as detergent for metal and nonmetal.
3. In dyeing industry, HEDP is used as peroxide stabilizer and dye-fixing agent.
4. 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.

Our Factory production workshop : 
HEDP/1-Hydroxyethylidene-1, 1-Diphosphonic Acid/ Etidronic Acid CAS 2809-21-4 HEDP/1-Hydroxyethylidene-1, 1-Diphosphonic Acid/ Etidronic Acid CAS 2809-21-4
HEDP/1-Hydroxyethylidene-1, 1-Diphosphonic Acid/ Etidronic Acid CAS 2809-21-4

APPLICATION:
EDTMPS   can be used as corrosion inhibitor in circulating cool water system and boiler water. It is a chelating agent in non-cyanogen electroplating industry and a water-softening agent in printing & dyeing industry. When used alone, 2~10mg/L is preferred. When built with   HPMA   by ratio EDTMP: HPMA=1:3,  it can be used for low pressure boiler.
It can also be built with BTA,    PAAS   and zinc salt.
SAFETY:
Acidity. Avoid contact with eye and skin. In case of contact, flush with water immediately.
PACKING AND STORAGE :
250kgs plastic drum, IBC(1000L),customers' requirement.
Storage for one year in shady room and dry place.
HEDP/1-Hydroxyethylidene-1, 1-Diphosphonic Acid/ Etidronic Acid CAS 2809-21-4
HEDP/1-Hydroxyethylidene-1, 1-Diphosphonic Acid/ Etidronic Acid CAS 2809-21-4
 
 

 

Water Treatment Chemical

PNEUTEC.IT, 2023