Pentachloronitrobenzene

• Quintozene
• PCNB

Colorless needles

Fixed

1.718 g · cm -3 ( 25 ° C)

144 ° C.

328 ° C

Practically insoluble in water (0.1 mg · l -1)

Attention

1100 mg · kg -1 ( LD50, rat, oral)

Template: Infobox chemical / molecular formula search available

Pentachloronitrobenzene ( quintozene ) is a chemical compound selected from the group consisting of benzene derivatives.

Production and representation

Pentachloronitrobenzene can be obtained by reaction of chlorine with nitrobenzene.

Properties

Pentachloronitrobenzene is a colorless needle-shaped crystals of existing solid that is practically insoluble in water. It decomposes on heating, hydrogen chloride, nitrogen oxides, carbon monoxide and carbon dioxide produced. Under ambient conditions, it converts to pentachlorophenol aniline. The technical product is ( depending on its purity), a light yellow to off-white solid with a musty smell. It is soluble in carbon disulfide, benzene, chloroform, ketones, and aromatic or chlorinated hydrocarbons, but it is practically insoluble in water.

Use

Pentachlorophenol nitrobenzene is used as a drug, in agriculture as plant protection agents and disinfectants. It is used in the United States as a fungicide. It was first synthesized in 1868 and introduced in the 1930s in Germany as a fungicide. Since 1962, it is produced in the U.S. and there in 1964 for the first time admitted. In 1972, the annual production in the U.S. was about 1,300 tons, of which 30-40 % were exported.

The EC Commission decided in 2000 that pentachloronitrobenzene not of Directive 91/414/EEC is to be included as active substance in Annex I and all approvals are redeemable as plant protection products. In Germany, Austria and Switzerland, no plant protection products containing this active ingredient are allowed.