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Material Information

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Business Waste: Solvents
Proper Disposal: Contact the Industrial Materials Exchange (IMEX) at 206-263-8465 to find businesses that could use your spent solvent as is. Sludge resulting from the use and reclamation of solvents may be hazardous. If chlorinated solvents are mixed with any other solvents, they may have to be incinerated, a more expensive option.
Recycle: Spent solvents can be settled, filtered or distilled and reused in your shop.

They can also be sent off-site for recycling, fuel blending for use in a permitted industrial furnace, or incineration.

In some cases, spent solvent may be suitable for reuse, without treatment, by another business with less demanding purity requirements. Recycling and/or reusing spent solvent can offer benefits in the form of recycling credits, lower overall waste counts and greater control over solvent quality.

Solvents can be recycled at your site or off-site at a treatment facility. Ask your service provider whether they provide documentation of recycling credits.

Chlorinated solvents can be reclaimed and reused if they're not mixed with other solvents.
Potential Hazards: Many solvents can cause adverse effects to human health through exposures from breathing solvent vapors or from contact with skin.

Health affects commonly found from use of more toxic solvents include diseases of the central nervous system, lungs, liver and kidneys.

Solvents considered hazardous under the dangerous waste regulations are those that catch fire easily (low flashpoints- less than 140° F) or are toxic.

Some commonly used solvents that designate as hazardous are acetone, methyl ethyl ketone (MEK), toluene, xylene, 1,1,1-trichloroethane, and naphtha.

Some solvents that aren't hazardous before use, such as certain citrus-based solvents and high flashpoint petroleum distillates, can become hazardous during use if they are contaminated by metals or other chemicals.

Chlorinated Solvents (these contain chlorine) are always considered hazardous. To identify chlorinated solvents, look for the syllable "chlor-" in the list of ingredients on the container or the material safety data sheet.
Safer Alternatives: Try to avoid using chlorinated solvents such as those used in aerosol brake and carburetor cleaners, and paint strippers. Try to use a less- or non-hazardous cleaner. Some solvent substitutes or water-based cleaning solutions may not be hazardous waste.
Collection Facilities Info: Small Business Hazardous Waste Disposal – What wastes can I bring?
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Last Modified: 07/23/2015

Business Waste Directory