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Thread: A Thirsty Hippo Questions for Chemists

  1. #1

    Default A Thirsty Hippo Question for Chemists

    I admit I am never good in chemistry even in school. Therefore, this is a question for all chemists (or chemistry geniuses).

    You guys probably have heard, or have come across a product from Reckitt Benckiser called "Thirsty Hippo". Its main ingredient is calcium chloride (CaCl2).

    The Thirsty Hippo is used as a desiccant to remove excessive moisture in the air. As you all know, moisture is water (H2O).

    If we combine calcium chloride with water vapour (CaCl2 + 2 H2O → CaCl2·2H2O). Am I correct to say one of the by-products of these two chemicals is hydrochloric acid (HCl)? And many of us already learnt in school that hydrochloric acid is corrosive and harmful to metals.

    Am I correct to say that it isn't safe to use Thirsty Hippo with our cameras and lenses?

    Please verify this, as I (and I believe, many others too) are interested to know.

    Thanks in advance.
    Last edited by photobum; 16th February 2006 at 11:34 PM.

  2. #2

    Default Re: A Thirsty Hippo Questions for Chemists

    HCL gas is produced by combustion of hydrogen gas and chlorine gas:

    H2 (g) + Cl2 (g) -> 2HCl (g)

    when dissolved in water, then u get hydrochloric acid:

    2HCL (g) + H2O (l) -> 2H3O+ (aq) + 2Cl - (aq)



    ( i.e. you do not get hydrochloric acid just by mixing CaCL2 into water )

  3. #3
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    Default Re: A Thirsty Hippo Questions for Chemists

    if you can come out with all those equations and you claim you aren't good.. I don't know where I stand...
    “How fortunate for leaders that men do not think.” - Adolf Hitler

  4. #4

    Default Re: A Thirsty Hippo Questions for Chemists

    Quote Originally Posted by yanyewkay
    if you can come out with all those equations and you claim you aren't good.. I don't know where I stand...
    Err.... I got the equations from Wikipedia.
    Last edited by photobum; 17th February 2006 at 08:43 AM.

  5. #5
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    Default Re: A Thirsty Hippo Questions for Chemists

    pengz...
    “How fortunate for leaders that men do not think.” - Adolf Hitler

  6. #6

    Default Re: A Thirsty Hippo Questions for Chemists

    lolll

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