Hi, I would like to ask more experienced people on this forum about mercury contamination and toxicity. My plan is to reduce P2NP with aluminum amalgam (Al/Hg method). I'm however a little concerned about the contamination. I haven't fount any reliable sources on this topic. Suppose I washed the amalgam with remaining mercury nitrate/chloride salts with water in initial step many times, so no water soluble salts should remain. Is there any contamination risk from the metalic mercury present in the amalgam? If so, how much of a problem is that? According to my knowledge metallic mercury shouldn't be so toxic.. Do any of you have any measurements etc about the contamination in the product made by this method? If so to which extent? If it is a problem how should I mitigate this? Does repeated recrystallization/wash of the product helps? Maybe cleaning by acid/base method? I would like not to poison myself and the customers by heavy metals 
Thanks for your time and response. Maybe it is stupid question but I would like to be on the safe side if possible...
Thanks for your time and response. Maybe it is stupid question but I would like to be on the safe side if possible...