Scdc5515
Member
Does anybody have experience processing the silicon chips on the backside of heat sinks? I processed a small group by first boiling and hydrochloric acid. There was a pretty good reaction and when it was done the filtrate was a beautiful clear purple. Negative test for precious metals or silver. Then I boiled the remainder of the material in Aqua regional. It rendered a beautiful bright green yellow filtrate. Again no positive test for precious metals or silver. Is there anyThing to extract from these chips?