Ethephon
| Specification | |
| Active Ingredient | 85% min. |
| Appearance | Colorless solid; (tech. Is a clear liquid) |
| Physical and chemical properties | |
| Chemical Name | (2-chloroethyl)phosphonic acid |
| Empirical Formula |
C2H6ClO3P |
| Molecular Weight | 144.5 |
| Structural Formula |
|
| Melting point |
74-75℃ |
| Solubility |
Readily soluble in water, c. 1 kg/L (20℃). 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. |
| Vapor pressure |
< 0.01 mPa (20℃) |
| Formulations |
|
40%TC 85%TC 48%SL 52%SL
|
| Application |
|
Ethephon is a plant growth regulator with systemic properties. Penetrates into the plant tissues, and is decomposed to ethylene, which affects the growth processes. Used to promote pre-harvest ripening in apples, currants, blackberries, blueberries, cranberries, morello cherries, citrus fruit, figs, tomatoes, sugar beet and fodder beet seed crops, coffee, capsicums, etc.; to accelerate post-harvest ripening in bananas, mangoes, and citrus fruit; to facilitate harvesting by loosening of the fruit in currants, gooseberries, cherries, and apples; to increase flower bud development in young apple trees; to prevent lodging in cereals, maize, and flax; to induce flowering of Bromeliads; to stimulate lateral branching in azaleas, geraniums, and roses; to shorten the stem length in forced daffodils; to induce flowering and regulate ripening in pineapples; to accelerate boll opening in cotton; to modify sex expression in cucumbers and squash; to increase fruit setting and yield in cucumbers; to improve the sturdiness of onion seed crops; 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. |