| Definition: |
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A chemical that reacts with water to produce a gas that is either flammable, or presents a health hazard. |
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| Examples: |
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cesium metal (routinely used in ion source), calcium hydride, and rubidium metal |
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| Precautions: |
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Plan ahead for what you are doing |
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Minimize the quantity used |
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Do not work in the immediate vicinity of a water source such as a sink |
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Work in an inert atmosphere in a glove box, or some other way to exclude air |
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A fire extinguisher suitable for metal fires should be in the work area |
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PPE as required by hazard certification |
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| Possible Health Effects: |
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May form highly corrosive hydroxides on contact with air |
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Reacts with air or water to produce heat |
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May cause thermal and chemical burns on contact with skin |
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May produce flammable or toxic gasses on contact with water |
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| First Aid: |
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Brush off any large pieces of material that may be on skin |
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Immediately flush skin or eyes with tepid water for at least 15 minutes |
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See SDS for more detailed first aid treatment |
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Get medical attention if significant burns or if in eyes |
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