Chemists known as citizen chemists are everyday people who perform experiments to gain knowledge but do not work in a laboratory but rather have a kind of "home laboratory." So what exactly am I posting? Well, recently I read a post on another scientific forum regarding a decline of citizen chemists (like myself) and describing certain laws that make people like me get nervous about experiments conducted at home. The point here is "if you don't know all the possible combination of a chemical then you may be at risk of the law." http://www.sas.org/tcs/weeklyIssues_2005/2005-08-12/backscatter/index.html [Broken] The above is a link that speaks of the topic.