Characteristics of Hazardous Chemicals

Liquids with a flashpoint less than 60oC (140oF) are considered flammable chemicals.  The flashpoint of a chemical is the temperature at which the vapor of the chemical is capable of being ignited momentarily.  Alcohols and organic solvents are the most common flammable chemicals used in the laboratory. Table 1 lists flashpoint values for flammable chemicals commonly found in the laboratory. To safely manage flammable liquids, consult the MSDS and adhere to the recommended storage and usage procedures outlined in the MSDS. 

An acute exposure to very high concentrations of organic solvents can cause unconsciousness and death. Chronic exposure can cause nausea, headaches, fatigue, and mental impairment. Injury to the organs of the body and damage to the blood may also occur. Studies have shown that low concentrations of common laboratory solvents in the air can adversely affect behavior, judgment, and coordination. Contact with the skin may cause irritation, dermatitis, or an allergic reaction. Some solvents such as benzene and xylene may be absorbed through the skin and enter the bloodstream. 

Table 1. Flash-point Values for Common Flammable Chemical.