Searching the ChemKnowledge® System

ChemKnowledge® Help

   Table of Contents


  ChemKnowledge® Searches Using the IntegratedAnswer™ Searching Capabilities

The IntegratedAnswer™ Search is a fast search of our extensive, integrated, and cross-referenced RightAnswer® Knowledge Solutions documents and databases. There are two general steps to this search method; the first step does an alphabetical search to find the closest entry in our Index to the text you enter and the second step allows you to select the term closest to what you are looking for and then see all documents associated with your selected term.

Click the IntegratedAnswer™ link under the Search menu option.

  1. Enter your Search Term(s) in the text box.
  2. The IntegratedAnswer™ Search is done alphabetically starting with the letters you enter; simple search strings usually work best. It is not necessary to enter the end of a word, phrase, or number. Simply entering the first few letters or numbers will bring up exact matches for those characters plus all other available endings. You can scroll down the list to find the exact match you want. For example, if you enter "benz", the results will include all options that begin with the letters "benz". The results will NOT include options that have "benz" somewhere other than the beginning.

  3. Chose your 'Search Type' option.
  4. Although the default 'Search Type' is Plain Text, you can also limit your results by selecting one of the other 'Search Type' options. These other options include:
    • CAS Number
    • NA Number
    • RTECS Number
    • STCC Number
    • UN Number

  5. Click the 'Search' button.
  6. The search results from the Index that most closely match your Search Term(s) are listed alphabetically.

  7. Select a Substance.
  8. Select a substance from the list of index entries that most closely matches the one you are searching for. You can scroll down the list and click 'View More Substances' to see additional results. Substance names can appear in uppercase, lowercase, or a mixture of both and all are treated the same (the case is ingored) in the subsequent search. If you need to change your Search Term(s) and/or Search Type selection, you can click the 'here' link to navigate back to the first step and change your Search Term(s) and selection.

  9. Chose either 'Sort Documents by Source' or 'Sort Documents by Area of Interest'.
  10. Both options will provide a list of all documents associated with your selected indexed Substance.

    Sort Documents by Source will organize your search results by the name of individual Data Sources. If you have chosen Preferred Data Sources, these will be listed at the top. (To set or change your Preferred Data Sources, Click on the Account Info->Preferences option on the left side of the window.)
    To select this option, check the 'All Content and Data Sources' box and click the 'Get All Documents Sorted by Data Source' button.

    Sort Documents by Area of Interest will organize your search results by the Area(s) of Interest you select. Any document that is associated with your selected indexed Substance that does not fall under your selected Area(s) of Interest will be listed under the 'All Other Sources' heading. Some Area(s) of Interest have sub-categories that can be shown or hidden using the Show More and Show Less buttons to the right of the Area's name.
    To select this option, check the boxes next to the Area(s) you wish to have your results sorted by and click the 'Get All Documents Sorted by Area of Interest' button.

  11. Organized Search Results.
  12. All of the documents associated with your selected Search Term are shown in bulleted lists on this page. Click on the name of any document you wish to view in full detail. To get a description of the type of information a particular Data Source contains, click the help icon to the right of its name. A Show More button indicates there are more documents associated with your selected indexed Substance. Click the Show More button to expand the section and view all related documents within that Data Source. To hide the related documents, click the Show Less button. (Not all Data Sources will have additional documents to view.)

    Sorting by Data Source organizes your results by Data Source with any Preferred Data Sources listed at the top. An alphabetical listing of the remaining Data Sources follows under the heading 'All Other Sources'. Depending on your subscription, you may also see listings for 'ChemID External Links' and 'Other Government Links' listed after 'All Other Sources'.

    Sorting by Area of Interest organizes your results by first listing any Preferred Data Sources at the top followed by all of the checked Areas of Interest and their sub-categories. Any other resulting Data Sources that do not already appear within an Area of Interest are listed under 'All Other Sources'. Data Sources that specialize in the Area of Interest you have chosen are listed within that chosen area first, followed by other sources found that also have data in that area.
    An additional feature of this type of sorting is the ability to be taken directly to your Area of Interest within individual documents in select Data Sources. Click the more icon to the right of the name of the document you wish to see and you will be taken directly to the location within the document that is directly related to the Area of Interest you selected. Depending on your subscription, you may also see listings for 'ChemID External Links' and 'Other Government Links' listed after 'All Other Sources'.

  ChemKnowledge Searches Using Full-Text Searching Capabilities

The ChemKnowledge® Full-Text Search is a rapid full-text search that easily allows you to use words or phrases to pinpoint the environmental, hazard, and medical information you need within a digital library of proprietary and government databases.

Click the ChemKnowledge Data link under the Search menu option.

  1. Enter your Search Term(s) or Boolean Search Phrase in the text box.
  2. The ChemKnowledge® Full-Text Search is designed to search the entire contents of documents looking for the word(s), phrase, or string of characters entered as the Search Term(s). It returns all documents in the selected Data Sources within the ChemKnowledge System that contain the word(s) or phrase(s) that match the search term(s) entered. Search Terms are not case sensitive; you can type a Search Term in upper or lowercase letters. All special characters and punctuation (such as , # & () [] ! % ? /) are ignored during a search.

    "Noise" Words are common words (such as a, an, as) that are ignored during a search. "Noise" words are treated as placeholders in phrase and proximity searches. For example, if you searched for "right to know", the results could give you "rights to know" and "right and know" because the word "to" is a "noise" word. A complete list of noise words is available for review.

    Boolean and Wildcard Operators including 'AND', 'OR', 'AND NOT', '*', and '**' may be used to refine your Search Term(s). See more information about using these operators in the Using Boolean and Proximity Operators and Wildcard Searching sections.

  3. Optional Selection: Limit search to Mega Tag Tiles Only.
  4. Check this box to search the Title Meta Tag (only) of documents for the word(s), phrase, or string of characters you enter. Meta tags are used by the authors of Web pages to store descriptions of the contents of the Web page; these descriptions are not actually displayed on the page and do not necessarily include information such as the document title or substance name. This search only returns documents from the selected Data Sources when the text entered matches the text in the Title Meta Tag of a document.
    Note: This search option is not available for Data Sources in PDF format.

  5. Select Result Columns to customize your results.
  6. Using the Select Result Column check boxes, you may specify the information displayed about the documents found by checking the boxes next to the columns you wish to include in the results. Although the default set of columns chosen is 'Database Source', 'Key Word Highlights', and 'CAS Number', you can un-check these boxes and/or check additional boxes depending on your needs. Selecting either the 'Key Word Highlights' or 'Exact Phrase Highlights' column will show your Search Term(s) highlighted in yellow over blue bold text as they appear within the context of your document.
    Note: The highlight option is not available for PDF document results.

  7. Select your Data Sources.
  8. Check at least one, but not more than three, Data Source(s) you want to search. If at any point you would like to reset your Search Term(s), Result Columns, and Data Sources, click the 'clear' button. All selections, except the Result Column defaults, will be cleared from the page.

  9. Click the 'Search' button.
  10. The search results that most closely match your Search Term(s) are listed.


      Using Boolean and Proximity Operators

    The following Boolean and Proximity Operators are available for use in the Boolean Search Boxes.
    Operator Example Results
    AND hazard AND material Pages with both the words "hazard" and "material"
    OR breathing OR respirator Pages containing "breathing", or "respirator", or both
    AND NOT clothing AND NOT gloves Pages with the word "clothing", but without occurrences of "gloves"


    Boolean and Proximity Operators used in the Boolean Search Boxes can create a more precise search.
    To Search For Example Results
    A phrase on a page community right-to-know Pages with the phrase "community right-to-know"
    Both terms in the same page water and quality Pages with both the words "water" and "quality"
    Either term in a page emergency or urgent Pages with the words "clothing" or "urgent"
    The first term without the second term clothing and not gloves Pages with the words "clothing", but not "gloves"

    Hints:
    • You can add parentheses to nest expressions within a query. The expressions in parentheses are evaluated before the rest of the query. For example, entering "(personal OR protective) AND gloves" first searches for pages containing "personal" or "protective" (or both), then performs the AND search for pages containing "gloves." The results would return pages containing both "personal" and "gloves," and also pages containing both "protective" and "gloves." If you did not use the parentheses in this sample query, the AND expression "protective AND gloves" would be evaluated before the OR expression. Without the parentheses, the pages found would consist of those containing both "protective" and "gloves" (including those containing "personal") and also those containing "personal," though not containing "protective" or "gloves."
    • Use double quotes (") to indicate that a Boolean operator keyword should be ignored in your query. For example, "Abbott and Costello" will match pages with that phrase, not pages that match the Boolean expression. In addition to being an operator, the word 'and' is a noise word in English.
    • The AND operator has a higher precedence than OR. For example, the first three queries are equal, but the fourth is not:
      • a AND b OR c
      • c OR a AND b
      • c OR (a AND b)
      • (c OR a) AND b


      Wildcard Searching

    Wildcard operators help you find pages containing words similar to a given word.
    To Search For Example Results
    Words with the same prefix protect* Pages with words that have the prefix "protect," such as "protect," "protective," and so on
    Words based on the same stem teach** Pages with words based on the same stem as "teach", such as "teaching," "taught," "teacher," and so on