Alpha-Naphthylthiourea

In pure form colorless, reddish as a technical product, odorless solid

Fixed

Negligible

Very slightly soluble in water ( 0.6 g · l-1 at 25 ° C)

Risk

6 mg · kg -1 ( LD50, rat, oral)

Template: Infobox chemical / molecular formula search available

Alpha Naphthylthioharnstoff is mainly in the rodent control ( rodenticide ) inserted stomach poison from the group of thiourea derivatives.

Properties

Alpha Naphthylthioharnstoff is a colorless in pure form, reddish as a technical product, odorless and flammable solids. It decomposes before reaching its boiling point where sulfur oxides and nitrogen oxides are formed.

Use

Alpha Naphthylthioharnstoff is mainly used against brown rats and to some extent against voles. Since he has no taste for rats, it can be easily used in baits. It causes fatal pulmonary edema in rats. The LD50 is 6.4 to 7.4 mg / kg in rats. In the stomach poison bait an active ingredient concentration of about 1% (10 g / kg bait) and in detention dusts a concentration of 30 % (300 g / kg ) were used. Other rodents ( house mouse, black rat) are not sensitive. Today it is no longer used as contamination from the manufacture (1- naphthylamine ) is carcinogenic. Nowadays, coumarin derivatives are used instead of alpha Naphthylthioharnstoff most.

Safety

At Alpha - Naphthylthioharnstoff the suspected carcinogenic effect.