- Name: 1-Hydroxyethylidene-1
- Synonyms: 1-diphosphonic acid
- Appearance: Powder/Liquid
- CAS NO.: 2809-21-4
- HS Code: 29310000
- MF: TC2H8O7P2
1-Hydroxyethylidene-1 (HEDP), the white crystal powder or colorless or light yellow transparent liquid, is 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. By the way, if you are looking for high quality HEDP chemicals for water treatment, then Fengbai company is your best choice.
Application of HEDP Chemicals
- As scale and corrosion inhibitor, HEDP is widely used in low-pressure boilers, oil field pipeline and industrial circulating cooling water system in power plant, metallurgy, fertilizer and chemical industry.
- In light woven industry, it is used as detergent for metal and nonmetal.
- In dyeing industry, it can be used as peroxide stabilizer and dye-fixing agent.
- In non-cyanide electroplating, HEDP is used as chelating agent.
| Appearance | Clear, Colorless to pale yellow aqueous solution | White crystal powder |
| Active content (HEDP)% | 58.0-62.0 | 90.0 min |
| Active content (HEDP·H2O)% | – | 98.0 min |
| Phosphorous acid (as POR3RP3P)% | 1.0 max | 0.5max |
| Phosphoric acid (as POR4RP3-P )% | 0.6 max | 0.5 max |
| Chloride (as Cl-) ppm | 100.0 max | 100.0max |
| pH (1% solution) | 2.0 max | 2.0 max |
| Density (20℃)g/cm3 | 1.43-1.47 | – |
| Fe，ppm | 10.0 max | 5.0 max |
| Colour APHA (Hazen) | 30.0 max | – |
| Ca sequestration (mg CaCO3/g) | 500.0 min | – |
Why Choose Us
- With more than 15+ years of experience in the water treatment chemical industry.
- Fengbai owns the most advanced production workshops and technology.
- All of our products have passed various quality testing certifications, including ISO9001, SGS, HACCP, KOSHER, HALAL, etc.
- We also guarantee to provide high quality products and excellent service for all the customers.
- Our main markets are Southeast Asia, Middle East, Africa, South America, etc.