Chemical Waste
Definition
Solid, liquid and gaseous hazardous chemicals as well as wastes contaminated with hazardous chemicals.
Examples
- Chemical reagents no longer needed
- Chemicals with shelf life expired
- Waste oils
- Waste solvents
- Hazardous chemical spill cleanups
- Materials with hazardous chemical contamination
- Unknown chemicals
- Oil-based paints and related substances
- Pesticides
- PCB items (transformers, capacitors, ballasts manufactured before 1978)
- Batteries
- Compressed gases
Packaging Guidelines
| If Discarding | Then |
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| Hazardous chemical in original container | - Confirm identity.
- If still useful see Recyclable Waste. If not, complete an E.H.S. Hazardous Waste Label, attach it to the container and place in Satellite Accumulation Area (S.A.A.).
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| Liquid organic hazardous waste | - Use empty, clean glass container with screw cap. Separate non-halogenated from halogenated and mixed solvents if possible.
NOTE: Do not put corrosive or reactive materials with solvents. If corrosives can't be avoided, be sure to neutralize or destroy reactive component. - Fill out an E.H.S. Hazardous Waste Label appropriately and attach it to the container and place container in Satellite Accumulation Area (S.A.A.).
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| Aqueous waste | - If strong inorganic acid or base (2>pH>12) and no other hazardous constituents, dilute, neutralize (4<pH<10) and dispose down the drain.
- Use empty, clean, compatible container, with screw cap, i.e., For Hydrofluoric Acid, a plastic container is required.
- Fill out an E.H.S. Hazardous Waste Label appropriately and attach it to the container and place container in Satellite Accumulation Area (S.A.A.).
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| Solid hazardous waste (Including materials contaminated with hazardous materials / waste). | - Preferably use plastic container with screw cap. Glass OK. Double plastic bag if volume too large for jar.
- Fill out an E.H.S. Hazardous Waste Label appropriately, attach it to the container, and place container in Satellite Accumulation Area (S.A.A.).
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| Unknown chemicals | - Find out as much as possible about the unknown from former lab occupants or principal lab investigator.
- Ensure that unknown is in screw-cap container.
- Complete an E.H.S. Hazardous Waste Label stating Unknown ID.
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| Gaseous hazardous wastes | - Confirm that gas remains in cylinder, if possible.
- Remove all valves, gauges, etc.. Cap snugly.
- If lecture bottle, call E.H.S. For all others, contact supplier for removal.
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