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1. Colour of silica gel changes to ------as it absorbs moisture from air





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  • By: remshad on 06 Jun 2018 02.54 am
    When it becomes in touch of moisture its color gradually changes from dark blue to light blue and then lastly pink and therefore shows the absorption of moisture. This improvement in color of silica gel blue shows and updates the user that it has to be changed or regenerate
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