Use of Toxic Gas on Campus

Per the CA Fire Code, if the volume of toxic gas within a given building exceeds a particular amount, then expensive and elaborate gas monitoring and alarm systems are required. Therefore, EH&S works with departments and labs to reduce the volumes of these hazardous materials whenever possible.

Below is a list of common toxic gases that researchers could use. If you plan to use any of these, or other toxic gases, inform the Lab Safety Specialist at x4899, or x8243 before you proceed. In most cases the requirements of the Fire Code can be avoided by going to smaller gas cylinders and/or gas mixtures with inert gases.

• Arsine
• Boron trichloride
• Boron trifluoride
• Carbonyl sulfide
• Chlorine
• Cyanogen
• Fluorine
• Germane
• Hydrogen cyanide
• Hydrogen fluoride
• Hydrogen selenide
• Hydrogen sulfide
• Methyl bromide
• Methyl mercaptan
• Nickel carbonyl
• Nitric oxide
• Nitrogen dioxide
• Nitrous oxide
• Phosgene
• Phosphine
• Silane

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