- Classification:
- Chemical Auxiliary Agent
- CAS No.:
- 2809-21-4
- Other Names:
- 1-Hydroxy Ethylidene-1,1-Diphosphonie Acid
- MF:
- CH3C(OH)[PO(OH)2]2
- Purity:
- 98%
- Place of Origin:
- Shandong, China (Mainland)
- Type:
- Other
- Usage:
- Water Treatment Chemicals
- Brand Name:
- HGW
- Model Number:
- Organophosphoric acid corrosion inhibitor
- Packaging Details
- 25kg inner polythylene(PE)bag,outer plastic woven bag,or confirmed by clients.
- Delivery Time
- Within 3 weeks after receiving your payment
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid(HEDP)
Product information:
| Product name | HEDP |
| Synonyms | 1-Hydroxyethylidene Diphosphonic Acid; Etidronic Acid |
| CAS Number | 2809-21-4 |
| Molecular Weight | 206.03 |
| Molecular Formula | CH3C(OH)[PO(OH)2]2 |
Specifications
| Item | Index | |
| Appearance | Colorless or light yellow transparent liquid | White crystal powder |
| Active content(HEDP)% | 58.0-62.0 | 90.0min |
| Phosphorous acid | 2.0max | 0.8max |
| Phosphoric acid | 0.8max | 0.5max |
| Chloride | 0.1max | 0.1max |
| pH(1% solution) | 2max | 2max |
| Density(20'C)g/cm3 | 1.40min | - |
| Fe,mg/L | 10max | 5max |
| Colour APHA | 40max | - |
Properties:
The solid state of HEDP is crystal powder,situable 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 .
Usage:
HEDP is used as scale and corrosion inhibition in circulating cool water system,oil field and low-pressure in fields such as electric powder, chemical industry,metallurgy, fertilizer, etc...In light woven industry,HEDP is used as detergent for 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 1-10mh/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.
Package and Storage:
HEDP solid: 25kg inner polyethylene(PE) bag, outer plastic woven bag, or confirmed by clients .
Sefety Protection
Acidity, Avoid contact wih eye and skin, once contacted, flush with water .
If you are interested, please contact me freely .
