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= Lethal Concentration (usually measured in the air but sometimes in water)
= For inhalation experiments, the concentration of the chemical in air that kills 50% of the test animals in a given time (usually four hours)
= Lethal Dose given to a test population
= Lethal Dose that killed 50% of test animals
Safety Data Sheets (SDS) are available online through companies that sell the substances.
Try searching Google using the name of your chemical followed by MSDS OR SDS sheets. ScienceLab.com has a substantial collection of comprehensive sheets.
In addition, here are some examples of sites that have SDS records:
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All faculty, students and staff can set up a free RefWorks account:
Questions? Contact the library!
Each SDS sheet has the same 15 subject headings in order. Use this format to find information quickly.
1 Chemical Product and Company Identification
2 Composition, Information on Ingredients
3 Hazards Identification
4 First Aid Measures
5 Fire Fighting Measures
6 Accidental Release Measures
7 Handling and Storage
8 Exposure Controls, Personal Protection
9 Physical and Chemical Properties
10 Stability and Reactivity
11 Toxicological Information
12 Ecological Information
13 Disposal Considerations
14 Transport Information
15 Regulatory Information