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Topic: Calcuim Sulfate...  (Read 4053 times)

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Pluth

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Calcuim Sulfate...
« on: December 20, 2005, 09:11:28 PM »
I am trying to make my own plaster of paris, i know it calls for gypsum, but i would like to react two compounds to create the main ingredient Calcium Sulfate.

My question is this:  What compounds can I react together to get CaSO4?            

« Last Edit: December 21, 2005, 12:14:58 PM by Edward »
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Offline AWK

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Re:Calcuim Sulfate...
« Reply #1 on: December 21, 2005, 02:17:15 AM »
You can take any soluble calcium salt (chloride, nitrate) and soluble sulfate eg. sodium, potassium, ammonium, iron, aluminium, an so on) and mixt them.
Calcium sulfate exist in nature as gipsum, anhydrite and and alabaster.
« Last Edit: December 21, 2005, 02:17:47 AM by AWK »
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Offline Alberto_Kravina

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Re:Calcuim Sulfate...
« Reply #2 on: December 21, 2005, 03:43:43 PM »
Hint: You can precipitate Calcium sulfate only if you have a concentrated Ca2+-Solution.If you have olny diluited solutions, you can precipitate the Calcium sulfate by adding Ethanol.
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