Main Products
- Phosphonates Antiscalants, Corrosion
Inhibitors and Chelating Agents - Salts of Phosphonates
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- Tetra Sodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP?Na4)
- Tetra Sodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP?Na4)
- 2-Phosphonobutane -1,2,4-Tricarboxylic Acid, Sodium salt (PBTC?Na4)
- Penta sodium salt of Amino Trimethylene Phosphonic Acid (ATMP?Na5)
- Hepta sodium salt of Diethylene Triamine Penta (Methylene Phosphonic Acid) (DTPMP?Na7)
- Potassium Salt of HexaMethylene-DiamineTetra (MethylenePhosphonic Acid) HMDTMPA?K6
- More
- Polycarboxylic antiscalant and dispersant
- Biodegradable antiscalant and dispersant
- Biocide and Algicide
- Built Scale & Corrosion Inhibitors and Pretreatment Filming Agents
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- TH-907 Non-P Scale&Corrosion Inhibitor
- TH-503 Scale and Corrosion Inhibitor for Boiler
- TH-503B Scale and Corrosion Inhibitor for Boiler
- TH-504 Scale and Corrosion Inhibitor for Heating Water
- TH-601 Scale and Corrosion Inhibitor for Iron & Steel Plant
- TH-604 Scale and Corrosion Inhibitor for Power Plant
- More
- Corrosion Inhibitor
- Oxygen Scavenger
- Reverse Osmosis Chemicals
- Other
Shandong Taihe Technologies Co., Ltd.
TEL: +86-632-5113066
FAX: +86-632-5112055
E-mail: info@thwater.net
ADD: No.1, Shiliquan East Road, Shizhong District, Zaozhuang City, Shandong Province, P.R.China
Monosodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic
Acid (HEDP?Na)
CAS No. 29329-71-3
Molecular Formula: C2H7O7P2Na Molecular weight: 228
Structural Formula:
Properties:
HEDP?Na is an organophosphonic acid corrosion inhibitor, it can chelate with Fe, Cu, and Zn ions. HEDP?Na can dissolve the oxidized materials, it has good scale and corrosion inhibition effects even under 250℃, it is stable under high pH value, not easy to be hydrolyzed, not easy to be decomposed under normal light and heat condition, its acid/alkaline and chloride oxidation tolerance are better than that of other organophosph-onic acids. HEDP?Na can form six-ring chelating compounds with metal ions in water system, Ca2+ in particular. HEDP?Na has good scale inhibition effects and obvious dissolution threshold effects. When used with other Water Treatment Chemicals, the synergistic effects is better.
HEDP?Na is suitable for acidic scale inhibitor and detergent, can be used for metal surface treatment. .
Specification:
| Items | Index |
|---|---|
| Appearance | Colorless or yellowish transparent liquid |
| Active content (HEDP)% | 19.0-21.0 |
| Fe，mg/L | 20 max |
| PH (1% water solution) | 2.3-2.9 |
| Density (20℃) g/cm3 | 1.11-1.21 |
Usage:
HEDP?Na is used in circulating cool water system, medium and low pressure boiler, oil field water pipelines as scale and corrosion inhibitor in fields such as power plant, chemical industry, metallurgy, fertilizer, etc.. In light woven industry, this product is used as detergent for metal and nonmetal. In dyeing industry, this product is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, this product is used as chelating agent.
When used as scale inhibitor, the dosage 2-20mg/L is preferred, when used as corrosion inhibitor, the dosage 20-100mg/L is preferred, when used as cleaning agent, the dosage 1000-2000mg/L is preferred. Usually, HEDP?Na is used together with polycarboxylic acid .
Package and Storage:
200L plastic drum,IBC(1000L),customers’ requirement. Storage for ten months in shady room and dry place.
Safety Protection:
Acidity, Avoid contact with eye and skin, once contacted, flush with water.