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Product Details:
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| Product Name: | HEDP | Appearance: | White Crystal Powder |
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| Active Content (HEDP): | Min 90% | Phosphorous Acid (as PO33-): | Max 0.8% |
| Phosphorous Acid (as PO43-): | Max 0.5% | PH (1%water Solution): | Max 2.0 |
| Fe: | Max 10ppm | Application: | Phosphoric Acid Corrosion Inhibitors Chelating Agents |
| CAS: | 2809-21-4 | ||
| High Light: | phosphoric acid Corrosion Inhibitors,phosphoric acid Chelating Agents,HEDP Solid CAS 2809-21-4 |
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Phosphoric acid corrosion inhibitors & chelating agents HEDP Solid CAS 2809-21-4
Product Name: Hydroxyethylidene Diphosphonic acid ( HEDP ) ; 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP); HEDPA ; Oxyethylidenediphosphonic Acid ( OEDP ) ; Оксиэтилидендифосфоновая кислота(ОЭДФ -кислота )
Application:
The solid state of HEDP 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.
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.
Molecular formula: C2H8O7P2
Molecular structure:
CAS No.: 2809-21-4
Quality standard: HG/T 3537-2010
Specification:
| Items | Index |
|---|---|
| Appearance | White crystal powder |
| Active content (HEDP) | min 90% |
| Active content (HEDP·H2O) | min 98% |
| Phosphorous acid (as PO33-) | Max 0.8% |
| Phosphoric acid (as PO43- ) | Max 0.5% |
| Chloride (as Cl-) | Max 0.01% |
| pH (1% water solution) | Max 2.0 |
| Fe, mg/L | Max 10.0ppm |
Storage:
Store in a cool and ventilated place indoors, moisture-proof and sun proof, and the storage period is 12 months.
Package:
HEDP solids are packed in plastic woven bags lined with polyethylene bags, with a net weight of 25kg per bag, which can also be determined according to the needs of users.
We also distribute sodium percarbonate, potassium permanganate, sodium gluconate, sodium acetate trihydrate, Trichloroisocyanuric Acid, Oxalic acid etc.,We produce sulfur dyes, anhydrous sodium sulfite and sodium pyrosulfite etc. We control the quality during the production and finished process.
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