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Purity of acetyline from Calcium Carbide


— Posted by Rebo on 3:26 pm on Mar. 13, 2002

how technically pure is the acetyline made from Calcium Carbide? I do not need alot, and do not want to have to buy a whole tank of acetyline.


— Posted by Zambosan on 4:21 pm on Mar. 13, 2002

Pure water reacted with pure calcium carbide will produce only acetylene and calcium hydroxide. Any impurities are the result of impurities in the precursors:

CaC2 + 2H2O –> Ca(OH)2 + C2H2

Buying a small tank of acetylene may be the more economical alternative for you; the minimum order most places will ship is 12 lbs of carbide, costing around $60.  The DOT’s HAZMAT regulations require so many safety precautions that over $40 of the cost goes into preparing the package for shipping.

(Edited by Zambosan at 4:37 pm on Mar. 13, 2002)


— Posted by xenonalieninfo on 9:14 pm on April 2, 2002

is acetyline   Hydgron perixode


— Posted by Zambosan on 12:45 pm on April 3, 2002

No, acetylene is H-C=C-H, whereas hydrogen peroxide is H-O=O-H.  Similar structure, different makeup.  Both are unstable because of the double bonds, peroxide more so.


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