Ethephon

EthephonPlant growth regulator, ethylene generatorFeatures:1) Common name: Ethephon2) Chemical name: 2-chloroethylphosphonic acid3) Molecular Formula: C2H6ClO3P4) Molecular weight: 144.55) CAS no.: 16672-80-07Physical-chemical properties:1) Appearance: colorless solid2) Melting point: 74 - 75oC3) Vapor pressure: c. 265oC (decomp.)4) Boiling point range <0.01mPa (20oC)5) S.g./density: 1.409?.02 (20oC, tech.)6) Solubility:a) Readily soluble in water, methanol, ethanol, isopropanol, acetone, diethyl ether,and other polar organic solventsb) Sparingly soluble in non-polar organic solvents such as benzene and toluenec) Insoluble in kerosene and diesel oil7) Stability: stable in aqueous solutions having pH <5; at higher pH, decompositionoccurs with the liberation of ethylene8) Sensitive to UV irradiationTechnical:1) Specifications: 80%, 85%, 91% tech and 70%, 75% liquid for tech.2) Formulation: 1000g/L, 800g/L, 720g/L, 660g/L, 480g/L and 40% (w/w) SL for formulation;10%, 5% and 2.5% for rubber stimulant3) Analysis: GC (HG 2311-92) or analysis by measuring the ethylene produced on treatmentwith concentrated alkaliApplications:1) Action: a plant growth regulator with systemic properties, Ethephon penetratesplant tissue and is decomposed to ethylene; which affects growth processes.2) Uses:a) To accelerate ripening of fruit, tomatoes, sugar beet, coffee, etc.b) To increase the tillering of wheat and ricec) To prevent lodging in rice, maize and flaxd) To accelerate boll opening and defoliation in cottone) To hasten the yellowing of mature tobacco leavesf) To stimulate latex flow in rubber trees, and resin flow in pine treesg) To stimulate early uniform hull split in walnuts, etc.Toxicology:1) Oral: acute oral LD50 for rats 4229mg/kg2) Skin and eyes: acute percutaneous LD50 for rabbits 5730mg/kg; irritatingto skin and eyes3) Inhalation: LC50 (4h) for rats 6.26mg/L4) NOEL: (2 y) for rats 3000ppm diet5) ADI: (JMPR) 0.05mg/kg b.w.6) Birds: acute oral LD50 for bobwhite quails 1072mg/kg7) Fish: LC50 (96h) for carp >140, rainbow trout 720mg/L8) Bees: not toxic to bees9) Daphnia: EC50 (48h) 577.4mg/LPackaging: 25L, 120L, 200L/plastic drumPayment Term: L/C at sightPrice Term: FOB Shanghai