PGR

Ethephon

Chemical: 乙烯利
Use category: PLANT GROWTH REGULATOR
Content & formulation: ,50 g/kg PA, 480g/l SL
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  • Chemistry Identity
  • Technical sheet
  • Application

CAS No.】:16672-87-0
CAS】:(2-chloroethyl)phosphonic acid
Molecular Formula】:C2H6ClO3P

Molecular weight】:144.5;

Physical form】:Colourless solid; ( tech. is a clear liquid).

Density】:1.409.02 (20 °C) ( tech.);

Melting point】:74-75 °C;

Vapour pressure】:<0.01 mPa (20 °C);

Henry constant】:<1.55 × 10-9 Pa m3 mol-1 ( calc.);

Partition coefficient(n-octanol and water)】:logP <-2.20 (25 °C, unstated pH);

pKa】: pKa1 2.5, pKa2 7.2;

Solubility】:In water c. 1 kg/l (23 °C). 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 ke; Stability:Stable in aqueous solutions having pH <5. At higher pH, decomposition occurs with the liberation of ethylene. Sensitive to u.v. irradiation.;

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