Ethephon

Ethephon Plant growth regulator, ethylene generator Features: 1) Common name: Ethephon 2) Chemical name: 2-chloroethylphosphonic acid 3) Molecular Formula: C2H6ClO3P 4) Molecular weight: 144.5 5) CAS no.: 16672-80-07 Physical-chemical properties: 1) Appearance: colorless solid 2) Melting point: 74 - 75oC 3) 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 solvents b) Sparingly soluble in non-polar organic solvents such as benzene and toluene c) Insoluble in kerosene and diesel oil 7) Stability: stable in aqueous solutions having pH <5; at higher pH, decomposition occurs with the liberation of ethylene 8) Sensitive to UV irradiation Technical: 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 stimulant 3) Analysis: GC (HG 2311-92) or analysis by measuring the ethylene produced on treatment with concentrated alkali Applications: 1) Action: a plant growth regulator with systemic properties, Ethephon penetrates plant 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 rice c) To prevent lodging in rice, maize and flax d) To accelerate boll opening and defoliation in cotton e) To hasten the yellowing of mature tobacco leaves f) To stimulate latex flow in rubber trees, and resin flow in pine trees g) To stimulate early uniform hull split in walnuts, etc. Toxicology: 1) Oral: acute oral LD50 for rats 4229mg/kg 2) Skin and eyes: acute percutaneous LD50 for rabbits 5730mg/kg; irritating to skin and eyes 3) Inhalation: LC50 (4h) for rats 6.26mg/L 4) NOEL: (2 y) for rats 3000ppm diet 5) ADI: (JMPR) 0.05mg/kg b.w. 6) Birds: acute oral LD50 for bobwhite quails 1072mg/kg 7) Fish: LC50 (96h) for carp >140, rainbow trout 720mg/L 8) Bees: not toxic to bees 9) Daphnia: EC50 (48h) 577.4mg/LPackaging: 25L, 120L, 200L/plastic drum Payment Term: L/C at sight Price Term: FOB Shanghai