fosetyl-aluminium
95%tech, 80%wp,
Fungicide
NOMENCLATURE
fosetyl-aluminium
Common name fosetyl-aluminium
Other names efosite-Al* (rejected common name proposal); EPAL CAS RN [39148-24-8] EEC no. 254-320-2 Development codes LS 74 783; RP 32545 (both Rhône-Poulenc)
fosetyl
Common name fosetyl (BSI, draft E-ISO, (m) draft F-ISO (since 1984)); phosethyl* ((m) draft F-ISO (before 1984))
IUPAC name ethyl hydrogen phosphonate
Chemical Abstracts name ethyl hydrogen phosphonate
Other names efosite* (rejected common name proposal) CAS RN [15845-66-6]
PHYSICAL CHEMISTRY
fosetyl-aluminium
Composition Tech. is ³95% pure. Mol. wt. 354.1 M.f. C6H18AlO9P3 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 m3 mol-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.
APPLICATIONS
fosetyl-aluminium
Biochemistry Acts by inhibiting germination of spores or by blocking development of mycelium and sporulation. Mode of action Systemic fungicide, rapidly absorbed through the plant leaves or roots, with translocation both acropetally and basipetally. Uses Control of diseases caused by Phycomycetes (Phytophthora, Pythium, Plasmopara, Bremia spp., etc.) on a variety of crops including vines, fruit (citrus, pineapples, avocados, stone fruit and pome fruit), berries, vegetables, hops, ornamentals and turf. Also useful activity against several bacterial plant pathogens. Formulation types WG; WP. Compatibility Incompatible with foliar fertilisers
CERTIFICATE OF ANALYS:
product name: |
fosetyl-aluminium 95% tech |
fosetyl-aluminium 80% wp |
appearance: |
white crystalline powder |
|
a.i. content: |
95.15% |
80.20% |
loss at heat: |
0.70% |
|
ph range: |
|
3.2 |
suspension: |
|
96% |
fineness: |
|
100% |
wettability: |
|
10sec |
phosphate: |
|
0.30% |
water: |
|
0.80% |