Gidrokhinon from 190 ãðí/êã 2907220000

Hydroquinone shipment from a bag, made in China, Russia

Hydroquinone (1,4-dihydroxybenzene) С6Н4 (ОН) 2 - is used as a stabilizer in the production of other chemicals (because it lengthens the decomposition of chemical substances), and is also used in the photography industry as a raw material for the production of dyes and developers.

Hydroquinone is a strong reducing agent. Like phenol, it has a weak disinfecting effect. Hydroquinone does not impart odor to water, the taste appears at a concentration of several g / dm3; the threshold concentration for water color is 0.2 mg / dm3, for the effect on the sanitary regime of water bodies - 0.1 mg / dm3. Concentration 100 mg / dm3 sterilizes water, at 10 mg / dm3 inhibits the development of saprophytic microflora, below 10 mg / dm3 - hydroquinone undergoes oxidation and stimulates the development of aquatic bacteria; 2 mg / dm3 inhibit the nitrification of diluted wastewater, 15 mg / dm3 - the process of their biological treatment. Hydroquinone is listed as a Hazardous Substance in Canada. Previously used as a skin whitening ingredient, but in recent years has been banned almost everywhere because of the high risk to the skin. In the body, hydroquinone is oxidized to p-benzoquinone, which converts hemoglobin to methemoglobin. Methemoglobin is a substance formed when the iron atoms present in the hemoglobin pigment are oxidized to form iron oxide, cannot combine with molecular oxygen and, therefore, cannot carry oxygen in the body. Symptoms of methemoglobinemia include fatigue, headache, dizziness and cyanosis.