Tetraethyltin

• Tetraethylstannan
• Tetraethyltin
• TET

Colorless liquid

Liquid

1.187 g · cm -3

-112 ° C

181 ° C.

1.6 mbar ( 20 ° C)

Practically insoluble in water

1.473 at 20 ° C.

Risk

6.25 mg · kg -1 ( LD50, rat, oral)

Template: Infobox chemical / molecular formula search available

Tetraethyltin is a chemical compound from the group of organotin compounds.

Production and representation

Tetraethyltin can be obtained by reaction of ethylmagnesium bromide with tin ( IV) chloride.

Properties

Tetraethyltin is an inflammatory colorless liquid, which is practically insoluble in water.

Use

Tetraethyltin is used as reaction gas in the CVD process to produce functional layers and transparent conductive layers. It was also used as a pesticide, fungicide and bactericide.

It was investigated in the 1920s shortly for use as an anti -knock agent for gasoline, but quickly replaced by the more effective tetraethyl lead.

Safety

The vapors of tetraethyl can combine with air to form an explosive mixture (flash point 53 ° C). In the body it is converted to the more toxic triethyltin. This compound was 1953/54, known as a neurotoxic substance, as occurred in France 110 deaths from the bactericidal preparation Stalinon containing 10 % Triethyltin. Triethyltin inhibits the oxidative phosphorylation, the oxidation of glucose, as well as the incorporation of phosphates into phospholipids and immunotoxic.