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Ethephon
| Offer Type: |  |
|---|---|
| Offer Category: | Chemicals >Agricultural Chemicals > Plant Growth Regulator |
| Offer Post Time: | 2009-11-09 |
| Expiration Date: | 2010-03-02 |
| Details: |
Common name: Ethephon
Structural formula: ; Chemical name: 2-chloroethylphosphonic acid Molecular Formula: C2H6ClO3P Molecular weight: 144.5 CAS No.: [16672-80-07] Physical-chemical properties: 1. Appearance: Colorless solid 2. Melting point: 74-75oC 3. Vapor pressure: C. 265oC (decomp. ) 4. Boiling point range: <0.01 mPa (20oC) 5. S. G. /density: 1.409? . 02 (20oC, tech. ) 6. Solubility: Readily soluble in water, readily soluble in Methanol, ethanol, isopropanol, acetone, diethyl ether, and Other polar organic solvents. Sparingly soluble in non-polar Organic solvents such as benzene and toluene. Insoluble in Kerosene and diesel oil. 7. Stability: Stable in aqueous solutions having pH <5. At Higher pH, decomposition occurs with the liberation of ethylene. Sensitive to u. V. Irradiation. Technical specification: 91%, 85%, 80% tech and 70%, 75% liquid, 40% For tech. Formulation: 1000g/L, 800g/L, 720g/L, 660g/L, 480g/L and 40% (W/W) SL for formulation 10%, 5% and 2.5% for rubber stimulant Analysis: GC (HG 2311-92) or analysis by measuring ethylene Produced on treatment with concentrated alkali Packaging: 200L, 120L and 25L plastic drum. Applications: 1. Action: Plant growth regulator with systemic properties. It Penetrates into plant tissue, and is decomposed to ethylene; Which affects growth processes. 2. Uses: Widely used to accelerate ripening of fruits, tomato, Sugar beet, coffee, etc; To increase the tillering of wheat and Rice; To prevent lodging in rice, maize and flax; To accelerate Boll opening and defoliation in cotton; To hasten the yellowing Of mature tobacco leaves; To stimulate latex flow in rubber Trees, and resin flow in pine trees; To stimulate early uniform Hull split in walnuts; Etc. Toxicology: 1. Oral: Acute oral LD50 for rats 4229mg/kg 2. Skin and eyes: Acute percutaneous LD50 for rabbits 5730mg/kg. Irritating to skin and eyes 3. Inhalation: LC50 (4h) for rats 6.26mg/L 4. NOEL: (2y) for rats 3000ppm diet 5. ADI: (JMPR) 0.05mg/kg b. W. 6. Birds: Acute oral LD50 for bobwhite quails 1072mg/kg 7. Fish: LC50 (96h) for carp >140, rainbow trout 720mg/L 8. Bees: Not toxic to bees 9. Daphnia EC50 (48h) 577.4mg/L |
