calcium

  1. B

    Calcium ammonium nitrate -> ammonium nitrate

    So a little back info first so you don't think I'm the next OKC bomber- if you love guns and target shooting as much as I do then you know what Tannerite is. For those that don't, it's a binary explosive that explodes when shot. You can buy the name brand tannerite at Cabelas but it costs a ton...
  2. M

    Thermal decomposition of calcium carbonate.

    In general, we heat CaCO3 to temperature of approximately 825°C it decomposes into calcium oxide and liberates carbon dioxide gas:* CaCO3 →825°C→ CaO + CO2* Is it possible to heat the calcium carbonate at temperatures below 825 degrees Celsius.
  3. H

    Calcium Chloride and Water

    For a Chemistry lab paper, I'm doing the exothermic reaction of Calcium Chloride and Water. I need five different variables, so I was going to change the amount of grams of Calcium Chloride I will add to the distilled water in order to get 5 different results. I need to do 25 trials. I was...
  4. A

    calcium carbonate chemistry

    I am trying to calculate the resulting pH of a water that has a known alkalinity (say 350 ppm), hardness content (300 ppm) and pH of 7.5 after adding acidified water of pH=2.2. This acidified water is water that has passed through an strong cation ion exchange resin of the H+ form. Around 0.4...
  5. K

    Calcium carbonate/FTIR

    Hi to all, i have one question and i will be very happy if somebody can help me in solving it. CaCO3 which has three distinct anhydrous crystalline polymorphs calcite, vaterite and aragonite. Why it is possible to distinguish these polymorphs by using FTIR? I know that we can recognize...