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why did my liquid freeze?

Discussion in 'Ice Management' started by andrewlawnrangr, Jan 17, 2009.

  1. andrewlawnrangr

    andrewlawnrangr Senior Member
    Messages: 339

    ok i made a liqiud calcium in a 5 gal bucket...... 22.5 pounds of calcium and 4 gal of water. mixed it up and sprayed it on a section of asphult. first i used the fan nosel on my back pack sprayer ( trying to get into liquids most cost effective). either i put to much down or my mix is wrong. i was thinking of making a mag/calcium mix for side walks but whats the best ratio???

    thanks all

  2. Upper5percent

    Upper5percent Member
    from USofA
    Messages: 61

    I think your concentration is too high for the temperature your working in...

    Your freezing point lowers as you increase your % of CaCl2 until you reach 29.5% after that the freezing point start to RISE!!!

    The lowest freezing temperature of -60F is achieved at 29.6% CaCl2

    at 34% concentration your freezing point has risen to +10F
    at 45% concentration your freezing point has risen to +78F

    Check the table on page 8 of the following document...

    Last edited: Jan 18, 2009
  3. Midwest BuildIt Inc

    Midwest BuildIt Inc PlowSite.com Addict
    Messages: 1,280

    yea you need to be some where around 2.5 pounds per gallon of water...but its hard to say exactly since you probably using a random bag of salt. there will be other factors since its not pure calcium or any one thing..
  4. lawnprolawns

    lawnprolawns Senior Member
    Messages: 965

    Interesting. Doesn't everything change when it hits snow and mixes with that? Also, what about bagged CaCl2, it seems that with those numbers, it would not work at -10 or so, or does it have to do with the way it dissolves in the snow/ice?
  5. brimfield

    brimfield Member
    Messages: 68

    Paul thanks for the help you saved me $ and time as I was using way too much calcium chloride to melt ice.
  6. Mark Oomkes

    Mark Oomkes PlowSite Fanatic
    Messages: 10,423

    Wow, didn't you have just about a solid block of calcium?