chemical substances

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  • Chemical substance - Wikipedia

    en.wikipedia.org

    A chemical substance, also known as a pure substance, is a form of matter that consists of molecules of the same composition and structure. It cannot be ...

  • Category:Chemical substances - Wikipedia

    en.wikipedia.org

    A chemical substance is any material substance used in or obtained by a process in chemistry, such as a chemical element or chemical compound.

  • Chemical substances

    www.kemi.se

    Chemical substances are chemical elements and compounds of elements. They may be natural or produced. Different products or articles, may be treated with ...

  • Chemical substance - New World Encyclopedia

    www.newworldencyclopedia.org

    2 Apr 2008 ... A chemical substance is any material that has a definite chemical composition. Moreover, a pure substance cannot be separated into other ...

  • Chemical Substances - CAS REGISTRY - Chemical Abstracts Service

    support.cas.org

    CAS REGISTRY gold standard for chemical substance information.

  • Chemical substance - Simple English Wikipedia, the free encyclopedia

    simple.wikipedia.org

    A chemical substance is any material with a known chemical composition. ... Typical chemical substances found in the home include water, salt (sodium ...

  • Chemical Substances - Canada.ca

    www.canada.ca

    8 Aug 2017 ... Canada's approach on chemicals. How Canada evaluates and regulates chemical substances including the Chemicals Management Plan.

  • List of all Challenge chemical substances - Canada.ca

    www.canada.ca

    26 Feb 2010 ... Table representing the composition status of the substances in each batch as of the 26 December 2009 launch of Batch 12; the composition of ...

  • Lists of Chemical Substances(CSCL) | Chemical Management ...

    www.nite.go.jp

    This is a homepage of the National Institute of Technology and Evaluation (NITE). Information on Lists of Chemical Substances(CSCL) of Chemical Management ...

  • Toxic Chemical Substances - 行政院環境保護署毒物及化學物質局

    www.tcsb.gov.tw

    As such, Taiwan promulgated the " Toxic Chemical Substances Control Act " on November 26, 1986. The act has been amended six times since its first ...