Ethephon

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Ethephon
File:Ethephon.png
style="background: #F8EABA; text-align: center;" colspan="2" | Identifiers
CAS number 16672-87-0 YesY
PubChem 7067595
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style="background: #F8EABA; text-align: center;" colspan="2" | Properties
Molecular formula C2H6ClO3P
Molar mass 144.5 g/mol
Density 1.409 g/cm³
Melting point

74 °C, 347 K, 165 °F

Solubility in water 123.9 g/100 ml at 23 C
style="background: #F8EABA; text-align: center;" colspan="2" | Hazards
Main hazards Corrosive
 YesY (what is this?)  (verify)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Ethephon is the most widely used plant growth regulator.

History

It is manufacturered by Rhône-Poulenc (Bayer Crop Science). Upon metabolism by the plant, it is converted into ethylene, a potent regulator of plant growth and maturity. It is often used on wheat, coffee, tobacco, cotton and rice in order to help the plant's fruit reach maturity more quickly. Cotton is the most important single crop use for ethephon. It initiates fruiting over a period of several weeks, promotes early concentrated boll opening, and enhances defoliation to facilitate and improve efficiency of scheduled harvesting. Harvested cotton quality is improved.

Although many environmental groups worry about toxicity resulting from use of growth hormones and fertilizers, the toxicity of ethephon is actually very low,[1] and any ethephon used on the plant is converted very quickly to ethylene.[2]

References

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fr:Éthéphon

it:Ethephon

nl:Ethefon
  1. Pesticide Information Profiles: Ethephon, Extension Toxicology Net. Sept 1995.
  2. "1994 Joint meeting of the FAO panel of experts on pesticide residues in food and the environment." UN Food and Agriculture Organization. 1994.