Use only loose fitting caps or spring loaded pressure release valves. Avoid exposure of cryogenic liquids to atmospheric gases. Splash goggles AND splash shields should be worn when filling containers with cryogenic liquids. Gloves and tongs should be used to handle materials exposed to cryogenic liquids. Chemical Stability See Appendix F for a list of chemicals which can form explosive peroxides.
Stability refers to the susceptibility of the chemical to dangerous decomposition.
The label and MSDS will indicate if a chemical is unstable. Ethers and olefins form peroxides on exposure to air and light. Since these chemicals are packaged in an air atmosphere, peroxides can form even though the containers have not been opened. Write the date received and date opened on all containers of ether. Unless an inhibitor was added by the manufacturer, closed containers of ether should be discarded after 1 year.