Ardibash
Well-known member
OK, I have a strange thing going on.
I processed some keyboards for silver, with nitric and salt> It produced about 20 l of dilute (20-25%) nitric acid, which had lots of salt content from silver chloride precipitation.
I was just curios of what it will do if I put in a whole motherboard, will it eat the copper and leave the tin nitrate. BUT What I got the next morning is all pins and SMDs fallen of the boards. I was really happy as it did not touch any of the plastics or gold and copper, there where also no salts and seddemnts. So I had an excellent solder remover (that's what I thought). After about 100 motherboards where stripped the liquid was not working any more.
So I deiced to make a similar liquid, just took some Nitric acid added salt water and placed some boards in it. The next day (cold day, about -1) I checked and some SMDs where fallen but the thicker solder near the connectors was not fully digested. I thought it was cod day, and the solution could work better when warmed up. I place a water heater inside the bath, and set it to 35 C.
4 hours late NO FINGERS, NO METALS, NO GOLD, it even dissolved the gold foils.
What did I create ?
I processed some keyboards for silver, with nitric and salt> It produced about 20 l of dilute (20-25%) nitric acid, which had lots of salt content from silver chloride precipitation.
I was just curios of what it will do if I put in a whole motherboard, will it eat the copper and leave the tin nitrate. BUT What I got the next morning is all pins and SMDs fallen of the boards. I was really happy as it did not touch any of the plastics or gold and copper, there where also no salts and seddemnts. So I had an excellent solder remover (that's what I thought). After about 100 motherboards where stripped the liquid was not working any more.
So I deiced to make a similar liquid, just took some Nitric acid added salt water and placed some boards in it. The next day (cold day, about -1) I checked and some SMDs where fallen but the thicker solder near the connectors was not fully digested. I thought it was cod day, and the solution could work better when warmed up. I place a water heater inside the bath, and set it to 35 C.
4 hours late NO FINGERS, NO METALS, NO GOLD, it even dissolved the gold foils.
What did I create ?