Appearance: colorless solid. Water Solubility: readily soluble in water. Solubility in Other Solvents: readily soluble in methanol, ethanol, isopropanol, acetone, ether and other polar organic solvents. Melting Point: 74-75 degrees C. Vapor Pressure: <10 to the minus 7 mbar at 20 degrees C.
　

The acute oral LD 50 in rats is from 3400 mg/kg (313) to 4229 mg/kg. The dermal LD50 is greater than 5 g/kg.The inhalation LC50 for rats is greater than 5 mg/l of air.
　

Ethephon is a plant growth regulator. Its use varies with plant species, chemical concentration, and time of application. Ethephon regulates phases of plant growth and development by application to various growth sites. Used in wheat, cotton, rice, baccy, pineapple, jowar, banana, natutral rubber, paint tree etc.