Poisoning by carbolic acid (phenol)

Carbolic acid - pink crystals with a characteristic smell, used as an antiseptic in the form of 2-3 % solution. Adding water, forms a liquid carbolic acid, containing 90 % of phenol and 10 % water.
In contrast to acids and alkalis acts on the body throughout the molecule. Local activity is manifested first in the form of surface whitish chemical burns, further poison corrodes the mucous membrane or skin, this skin surface becomes brownish. After contact with skin Lysol (40-60 % phenol in a soap solution) burns characterized by more pronounced brownish tint and slippery "saponified" surface. In a poison can be accessed through the mouth, inhaled, it can also be well absorbed through the skin. Poisoning are rare, usually due to accidental ingestion.
Phenol belongs to the group of strong neuro-protoplasmatic poisons. Lethal dose depends on ways of receipt of poison: when airborne path 1-2 g when released through the skin and by ingestion - up to 10-30, If poisoning quickly develop symptoms of Central nervous system, unconsciousness and coma. Death usually occurs within a few hours, rarely - a few days from the development of acute renal failure.
On section are dry, white, firm, break up the scab on the gastric mucosa. Less frequently, this scab is detected on the mucosa of the duodenum and the first segment of the jejunum. The stomach is sharply reduced. On the skin surface dry chemical burns whitish or grayish-brown. In the brain multiple point bleeding, kidney phenomena toxic nephrosis, in the lungs, pneumonia, in the vessels dark, thick blood. From internal organs felt a sharp smell of carbolic acid.
Judicial-chemical study of phenol found in the internal organs.