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Vermiculite and dehydration

  1. Mar 16, 2008 #1
    vermiculite a mineral loss its water molecules when its is heated but it not loses it water molecules completely.how it is possible??
  2. jcsd
  3. Mar 21, 2008 #2

    jim mcnamara

    User Avatar

    Staff: Mentor

    You are talking about water of hydration.

    Example [tex]Si0_2 3(H_20)[/tex]

    google for water of hydration. Even oven drying to > 100C may not remove it.
    Last edited: Mar 21, 2008
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