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1.5: Applying Properties - MSDS/SDS

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    Learning Objectives
    • Review physical and chemical properties.
    • Know the purpose of a MSDS/SDS.
    • Explain the bolded words on this page.

    What is a MSDS/SDS?

    A Material Safety Data Sheet (MSDS) or Safety Data Sheet (SDS) is designed to provide both workers and emergency personnel with the proper procedures for handling or working with a particular substance. MSDS's include information such as physical data (melting point, boiling point, flash point, etc.), toxicity, health effects, first aid, reactivity, storage, disposal, protective equipment, and spill/leak procedures. These are of particular use if a spill or other accident occurs.

    The MSDS's are available from many sources such as the chemistry store, health and safety offices, material producing companies, etc. Any business or industry that has chemicals on site is required to have access to MSDS files for employers to be able to access at any time. If an employee is concerned about their exposure to chemicals, they can peruse an MSDS to obtain helpful information. Likewise, one could research household chemicals that could be dangerous to humans and animals. Many substances found around the home (pesticides, fuels, and cleaners) can be hazardous or harmless.

    Categories of an SDS are: identification, hazard identification, composition/ingredient information, first aid measures, fire fighting measures, accidental release measures, handling and storage, exposure controls/personal protection, physical and chemical properties, stability and reactivity, toxicological information, ecological information, disposal considerations, transport information, regulatory information, and other information.

    Figure \(\PageIndex{1}\): Categories of a MSDS/SDS document.

    Other Terms Used in MSDS/SDS

    Aspects of toxicity and how chemicals will affect a body can also be found in this resource. Along with physical and chemical properties, you should be familiar with the terms below that could also be found in an MSDS/SDS document.

    • Mutagen: able to alter DNA and could result in carcinogenesis (a chemical example would be nitrosamine)
    • Carcinogen: able to cause cancer (this can get complicated, animal and human carcinogens both exist). There are very few chemicals classified as being human carcinogens. (benzene, radon, asbestos)
    • Neurotoxin: affects the nervous system (chemical examples include lead and mercury)
    Labeled diagram of a human body and the ways lead poisoning affects different areas of the body.
    Figure \(\PageIndex{2}\): Symptoms of lead poisoning. (Public Domain; Mikael Häggström).
    • Teratogen: affects developing fetus or embryo (pharmaceutical examples would be thalidomide and Accutane)
    • Corrosive: can chemically destroy things easily (acids/bases are examples)
    • Flammable/Combustible: able to catch on fire (examples would include gasoline and acetone)
    • Volatile: a liquid that can transform into gas easily (examples would include gasoline and acetone)

    MSDS/SDS's can be several pages long. A complete MSDS/SDS guide for acetic acid (also known as vinegar) can be viewed by clicking on this here. Although this chemical might appear dangerous, it used in the production of vinegar, ketchup, and barbeque sauce. After looking over vinegar's entire MSDS/SDS sheet, write down any questions for your instructor regarding unfamiliar terminology.

    Exercise \(\PageIndex{1}\)

    After looking at the MSDS for acetic acid, answer the questions below:

    1. Is this chemical a carcinogen?
    2. Does acetic acid react with metals?
    3. What odor does acetic acid produce?
    4. If this chemical is ingested, should you induce vomiting to remove it from the body?
    5. Does this chemical have a color?
    Answer a

    Acetic acid is not a carcinogen. It will not alter cause cancer.

    Answer b

    Acetic acid reacts with metals. This is a chemical property of this substance.

    Answer c

    Acetic acid smells like vinegar.

    Answer d

    Acetic acid is very corrosive and will eat biological tissues. If swallowed, vomiting should not be induced.

    Answer e

    This chemical is colorless

    Contributors and Attributions

    This page titled 1.5: Applying Properties - MSDS/SDS is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by Elizabeth Gordon.