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-   -   need to know if another chemical is possible (http://classroom.all-science-fair-projects.com/forum/showthread.php?t=2590)

toniv 10-23-2006 06:34 AM

need to know if another chemical is possible
 
my son is doing a science project on enviromental pollution, and needs HCl to show when the water becomes unsafe. The problem is I cannot buy HCl on line, the school has to and the teacher will not accept responsibilty for the chemical. He said I should find another item to use to replace the HCl. He did not know what that was and I do not know how to find a replacement chemical or solution? The project is from your web site, can you help?

Polishdude59 10-24-2006 12:28 PM

I think that u should ask ur son to aska teacher or another science teacher if thet one does not respond. Sorry i can't answer in only 13.

chemguy 10-25-2006 09:54 AM

HCl is an acid
 
HCl is an acid, hydrochloric acid.....and when it is concentrated, it is nasty stuff. I am surprised that the teacher wouldn't give a small amount a very dilute solution in water. The best alternative is simply vinnegar, which is 5% acetic acid in water. It will do the same thing.


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