As we all know, according to the chemical structure of VOCs, they can be further divided into 8 categories: alkanes, aromatic hydrocarbons, olefins, halogenated hydrocarbons, esters, aldehydes, ketones and other compounds. In an environmental sense, it mainly refers to the type of volatile organic compounds with active chemical properties.
Common VOCs include benzene, toluene , xylene , styrene , trichloroethylene , chloroform , trichloroethane , diisocyanate (TDI), diisocyanotoluene Ester etc. So which VOCs are volatile odorous organic compounds?
The smell of most VOCs is not obvious, but some VOCs, such as alcohols, aldehydes, ketones, aromatic hydrocarbons, sulfur-containing compounds , etc., will have a more obvious likeable or disgusting smell when the concentration reaches a certain level. Odor gases include not only volatile inorganic gases such as ammonia, hydrogen sulfide , but also many volatile odorous organic compounds (MVOC) with extremely complex chemical compositions.
MVOC belongs to a very special class of volatile organic compounds. On the one hand, MVOC can be divided into 5 categories:
The first category is halogen-containing compounds, such as halogenated hydrocarbons;
The second category is hydrocarbons , such as alkanes, alkenes, aromatic hydrocarbons, etc.;
The third category is oxygen-containing compounds Compounds, such as aldehydes, ketones, esters, organic acids, etc.;
No. 4 Category 5 is sulfur-containing compounds, such as thioethers , thiols and thiophenes;
Category 5 is nitrogen-containing compounds, such as amides , etc. These are toxic air pollutants .
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