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Thread: 'volatile substances' wow!!! help!

  1. 17th, October 2011, 03:49 PM #1
    stevesdonna
    stevesdonna is offline Active Member
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    Exclamation 'volatile substances' wow!!! help!

    Type 'volatile substances' into any search engine and it will come up with numerous suggestions and objectives including chemical analysis and compound structures. PLEASE someone:

    All I want to know is: why I would add volatile substances last to a preparation when making it up? (Q nvq3 module 11)

    Cheers:
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  2. 17th, October 2011, 04:14 PM #2
    johnep
    johnep is offline Moderator
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    Re: 'volatile substances' wow!!! help!

    If it volatile, it evaporates easily. To minimise losses, add last.
    johnep
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  3. 17th, October 2011, 04:28 PM #3
    stevesdonna
    stevesdonna is offline Active Member
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    Re: 'volatile substances' wow!!! help!

    Yep!! thats what I thought. Is it that simple? Thanks again Johnep you always come up trumps. ))
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