Fosetyl aluminum

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Structural formula
Structural formula of Fosetyl-aluminum
General
Surname Fosetyl aluminum
other names
  • Aluminum tris ( O -ethylphosphonate)
  • Aluminum tris (ethyl phosphonate)
  • Aluminum triethyl triphosphonate
  • Aluminum fosethyl
Molecular formula C 6 H 18 AlO 9 P 3
Brief description

colorless powder

External identifiers / databases
CAS number 39148-24-8
EC number 254-320-2
ECHA InfoCard 100.049.364
PubChem 6328269
Wikidata Q16185870
properties
Molar mass 354.10 g mol −1
Physical state

firmly

density

1.25 g cm −3

Melting point

decomposes> 200 ° C

solubility

easily soluble in water (125 g l −1 at 20 ° C)

safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary
05 - Corrosive

danger

H and P phrases H: 318
P: 280-305 + 351 + 338
Toxicological data
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Fosetyl-aluminum is an inorganic chemical compound from the group of phosphonates .

Extraction and presentation

Fosetyl-aluminum can be prepared starting from diethyl phosphite . This reacts with phosphoric acid , sodium ethoxide and aluminum nitrate to form Fosetyl-Al.

use

Fosetyl-aluminum is a systemic fungicide with protective and curative effects brought onto the market by Rhône-Poulenc (now Bayer CropScience ) . It is mainly used against Plasmopara viticola in viticulture and against downy mildew and other fungal diseases on special crops such as lettuce, cucumber, hops, strawberries and ornamental trees. It is used both as a spray and as a stain .

Admission

The active ingredient is contained in approved plant protection products in a number of EU countries, in Germany, Austria and Switzerland (trade name Aliette ).

metabolism

Fosetyl-aluminum is rapidly broken down into phosphonic acid in the soil .

Individual evidence

  1. ↑ a b c d Entry on Fosetyl-aluminum. In: Römpp Online . Georg Thieme Verlag, accessed on April 7, 2014.
  2. ↑ a b c d Entry on aluminum triethyl triphosphonate in the GESTIS substance database of the IFA , accessed on April 7, 2014(JavaScript required) .
  3. ↑ a b data sheet Fosetyl-aluminum, technical grade at Sigma-Aldrich , accessed on April 7, 2014 ( PDF ).
  4. ↑ Entry on aluminum triethyl triphosphonate in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on August 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
  5. ↑ Thomas A. Unger: Pesticide Synthesis Handbook . William Andrew, 1996, ISBN 0-8155-1853-6 , pp. 273 ( limited preview in Google Book search).
  6. ^ Directorate-General for Health and Food Safety of the European Commission: Entry on Fosetyl in the EU pesticide database; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on February 17, 2016.