Ethephon; Ethrel; Chlorethephon; Ethephon S.P.; Ethephon aqueous solution (40%); Ethephonww; (2-chloroethyl)phosphonic acid; (2-chloroethyl)phosphonate

2-chloroethylphosphonic acid

C₂H₄ClO₃P

Form Clear liquid.

Melting point 74-75℃.

Density 1.409 (20℃).

Solubility In water 1 kg/l (23℃). 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.

Oral Acute oral LD50 for rats 3030 mg/kg (tech.).

Skin and eye Acute percutaneous LD50 for rabbits 1560 mg/kg (tech.).

Irritating to skin and eyes.

Inhalation LC50 (4 h) for rats 4.52 mg/l (tech.).

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.

Description: Colorless to light brown transparent liquid, free from visible extraneous matter;

Active Ingredient Content: ≥89%;

1,2-Dichloroethane Conteent: ≤0.05%;

pH Value: 1.5~2.0;

Water Insoluble Material(w/w): ≤0.2%