Methyl isocyanate:
Methyl isocyanate (MIC) is an organic compound with the molecular formula C2H3NO, arranged as H3C-N=C=O. Synonyms are isocyanatomethane, methyl carbylamine, and MIC.
Methyl isocyanate (MIC) is extremely toxic. MIC can damage by inhalation, ingestion and contact in quantities as low as 0.4 ppm. Damage includes coughing, chest pain, dyspnea, asthma, irritation of the eyes, nose and throat as well as skin damage. Higher levels of exposure, over 21 ppm, can result in pulmonary or lung edema, emphysema and hemorrhages, bronchial pneumonia and death.
Trichloroethylene:
The chemical compound, Trichloroethylene is a chlorinated hydrocarbon commonly used as an industrial solvent. It is a clear non-flammable liquid with a sweet smell.
When inhaled, trichloroethylene, as with any anesthetic gas, depresses the central nervous system. Its symptoms are similar to those of alcohol intoxication, beginning with headache, dizziness, and confusion and progressing with increasing exposure to unconsciousness. Respiratory and circulatory depression from any anesthetic can result in death if administration is not carefully controlled. Cardiac sensitization to catecholamines such as epinephrine can result in dangerous cardiac arrhythmias. Workplace exposure to trichloroethylene has been associated with toxic effects in the liver and kidney.
Trichloroethylene can also affect the fertility of males and females in laboratory animals, but the relevance of these findings to humans is not clear.
Chloroform:
Chloroform, also known as trichloromethane and methyl trichloride, is a chemical compound with formula CHCl3. It does not undergo combustion in air, although it will burn when mixed with more flammable substances. It is a member of a group of compounds known as trihalomethanes. Chloroform has myriad uses as a reagent and a solvent. It is also considered an environmental hazard.