Many organic solvents are quite volatile and a common exposure to these substances is through the lungs. The vapors of some common solvents such as the simple halogenated methanes, can cause liver damage and some are suspected of being carcinogenic. Avoid breathing the vapors of these materials and always work with these materials in a well ventilated area such as a hood. Many organic solvents are also rapidly absorbed through the skin. It is a good idea to use the disposable gloves when handling these materials.
Organic ethers pose fire hazards.
The vapors of diethyl ether can accumulate in troughs or on the floor and can be ignited by remote sparks or flames. Additionally, the more highly substituted ethers react readily with oxygen to form potentially explosive peroxides. Avoid distilling ethers to dryness. Proper laboratory practices, neatness and organization in the laboratory are considered closely associated with safety. A neat and well organized student is usually less likely to have an accident and more likely to get a better grade.