Quick Details
Classification:Chemical Auxiliary Agent
CAS No.:2809-21-4
Other Names:hydroxyethane-1,1-diphosphonic acid
MF:CH3CPH(P(OH)2O)2
EINECS No.:220-552-8
Purity:58.0-62.0%
Place of Origin:China (Mainland)
Type:Adsorbent
Adsorbent Variety:Activated Carbon
Usage:Electronics Chemicals, Water Treatment Chemicals
Cas no::2809-21-4
Color:Colorless or light yellow
Packaging & Delivery
Packaging Details
packing:Normally In 250kg net Plastic Drum, IBC drum can also be used as required HEDP solid: 25kg inner liner polyethylene (PE) bag, outer plastic woven bag, or confirmed by clients.
Port
Shanghai,Qingdao,Tianjin
Lead Time :
Prompt shipment
Item | Standard | Result |
Active content(as HEDP) % | ≥60.0 | 60.3 |
Phosphorous acid(as PO33- ) % | ≤2.0 | 0.85 |
Phosphoric acid (as PO43- ) % | ≤0.8 | 0.32 |
Chloride(as Cl-) Mg/g | ≤0.1 | 0.066 |
PH (1%water solution) | 1.5-2.0 | 1.81 |
Density(20℃) g/cm3 | ≥1.40 | 1.460 |
Fe Mg/l | ≤10.0 | 4.82 |
Appearance | Colorless or pale yellow transparent liquid | Colorless transparent liquid |
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 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, HEDP is used together with polycarboxylic acid.
