Sulfuryl fluoride

Sulfuryl fluoride

Colorless, odorless, poisonous gas

Gaseous

4.63 kg · m-3

-135.8 ° C

-55.4 ° C

Slightly soluble

Risk

21 mg · m-3

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Sulfuryl fluoride, and sulfuryl fluoride is a colorless and odorless gas that is used primarily for the control of pests in wooden objects, rooms or buildings.

History

Sulfuryl fluoride as a fumigant has been developed for the destruction of wood pests beginning of the 1950s, and is marketed in the U.S. since 1961.

With the adoption of the Montreal Protocol in 1987, the use of the pesticide methyl bromide has been limited because it damages the ozone layer. As a result, extended the range of use of sulfuryl fluoride, which has no effect on the ozone layer. According to recent atmospheric measurements but a calculated global warming potential of 4780 is suspected.

Production and representation

Sulfuryl fluoride can be obtained by the reaction of sulfur dioxide and fluorine:

Alternatively, it can be represented on the barium salt of fluorosulfonic acid:

Likewise, getting the metathesis of sulfuryl chloride with sodium fluoride:

Extraction of barium chloride and fluorosulphonic:

Properties

Physical Properties

Sulfuryl fluoride is bisphänoid ( distorted tetrahedral ) built, the sulfur atom is sitting here in the tetrahedral center. The bond lengths of the atomic bonds are shown in the image.

Chemical Properties

Compared with sulfuryl chloride, sulfuryl fluoride is chemically much more inert and thermally stable. In water at room temperature to hydrolyze depending on the pH value not or only slowly to HF and sulfuric acid.