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Fosetyl-Aluminium
Common name: Fosetyl-Aluminium
CAS RN:[39148-24-8]
 
PHYSICAL CHEMISTRY
Mol. wt.: 354.1
Form:Colourless powder; (tech. is a white to yellowish powder).
M.p.: >200 °C
V.p.: <0.013 mPa (25 ºC)
Kow logP= -2.7 (pH 4)
Henry:<3.93×10-8 Pa mmol-1 (calc.)   
Solubility In water 120 g/l (20 ºC). In methanol 920, acetone 13, propylene glycol 80, ethyl acetate 5, acetonitrile 5, hexane 5 (all in mg/l, 20 ºC).
Stability Hydrolysis of fosetyl-aluminium occurs under extreme acid or alkaline conditions. DT50 5 d (pH 3), 13.4 d (pH 13). Decomposes above 200 ºC. 
 
TOXICOLOGY
Oral Acute oral LD50 for rats and mice >2000 mg/kg.
Skin and eye Acute percutaneous  LD50 for rats and rabbits >2000 mg/kg. Non-irritating to skin.
Inhalation  LC50 (4 h) for rats >1.73 mg/l air.
NOEL (90 d) for rats 5000, dogs 50 000 mg/kg diet. Non-teratogenic and non-mutagenic.
ADI (JMPR) 0-3.0 mg/kg b.w. Other Non-carcinogenic.
Toxicity class WHO (a.i.) III
EPA (formulation) III
 
ECOTOXICOLOGY
Birds Acute oral   LD50 for bobwhite quail >8000 mg/kg.
Fish  LC50 (96 h) for rainbow trout 94.3-428 mg/l.
Daphnia   LC50 (96 h) 189 mg/l.
Algae  EC50 (96 h) for Scenedesmus panonicus 21.9 mg/l.
Other aquatic spp. LC50 (96 h) for fiddler crab 145 mg/l.
Bees No mortality to honeybees at 0.2 mg/bee (contact).
Worms  Harmless.
 

 
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