freezing

  1. C

    Salinity, Freezing Temperatures and natural polymers.

    Good evening, Would anyone happen to know of a natural polymer which can withstand extreme colds without breaking down in a saline environment? Thank you.
  2. S

    calculation of freezing point

    hi i am trying to figure out the way to calculate the freezing point of an aqueous solution which have 5 different components. if someone can refer me to an example or give me and example it will be great thanks in advance sharon
  3. A

    Freezing point depression of ZnCl2

    Hello, I did an experiment on how different concentrations of ZnCl2 affect the freezing point of demi water. My results were that till a concentration of about 10 mol dm-3 the freezing point decreased (more or less in a linear manner). After that at concentrations of 15mol dm-3 the freezing...
  4. G

    What chemical mixes will result freezing

    Hello, I am not chemist, or have any knowledge about chemical reactions. For my project i am trying to achieve freezing point by mixing two chemicals in their liquid forms. Just like "Ice Packs" but ice packs are not cold enough for my project. I need something that will get much colder. Any...
  5. G

    What chemical mixes will result freezing

    Hello, I am not chemist, or have any knowledge about chemical reactions. For my project i am trying to achieve freezing point by mixing two chemicals in their liquid forms. Just like "Ice Packs" but ice packs are not cold enough for my project. I need something that will get much colder. Any...
  6. N

    Calculating Freezing point

    I am asked to calculate freezing point of a substance at 1x10^4 atm given the following information freezing point at 1 atm densities of the solid and liquid phase (in g/mL) change in entropy per mL melted I am to assume that both solid and liquid are incompressible, and that change in...
  7. N

    Freezing Point of CaCl2/NaCl dissolved?

    A solution contains 32.5g of CaCl2 dissolved in 250g of water. Calculate the freezing point of this solution. Assume the equation Change in Tf = -1.86m is valid. The following question is exactly the same but with NaCl. In closing which is the better deicer due to the previous data?
  8. M

    freezing point

    Hi im having trouble with this question i got assigned, i have no clue where to start so if somebody could point me in the right direction that would be great. the question is: how many grams of camphor(C10 H16 O) would you need to shift the freezing point of 100ml water by 5.6 degrees celsius.