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Registered Member #4932
Joined: Thu May 17 2012, 01:42PM
Location:
Posts: 59
Maybe the mafia does it that way, but then there would still be a body to find. If you want to dispose of a body, alkaline hydrolysis Is the way. It's even an alternative to burial and cremation in some countries and it's supposedly more eco-friendly. That way you can kill someone and be happy you disposed of him/her in one of the most eco-friendly ways possible. You can even flush the remains through the drain after you've neutralized them with some acid. If you're next to a resomation facility and you don't let any evidence lay behind, your chances of getting caught are about the lowest. You can thank me later :)
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
ok got some new information related to this thread.
Seen below are pics taken from a new attempt at etching. Ive learned some lessons and wanted to pass them on. First i found a hair salon that sells aqueous (not gel garbage) at 16% H2O2. Next i used straight 30 mol HCl. Being carefful to add acid slowly to water, I filled a ketchup cup with about 10% H2O2, then 90% HCl by volume. Then being careful not to kill myself, i found scrap circuit board and put it in. After about 1:20 to 1:40 minutes, the board was clear on both sides with no agitation.
Be careful adding to much H2O2, remember your adding mostly water to the reaction solution. the oxygenation is driving the reaction not the water. So after your getting a good vigorous fuming etching, and it then it starts to wain, swish in some air this reaction seems to like plain ol' air just fine. (be careful not to kill yourself doing it)
If one were to use the vertical tank then youd need to be sooper-dooper sure it doesnt over flow out and splatter everywhere.
I bought all new sharpie markers, and will next test under-cut and pin holing. Previously it would take 45-60 minutes to etch what you see below. and there would be defects from over etch in places.
This was 2oz copper.
I didnt pour it out on the ground either. Keep a hose running too.
Registered Member #2099
Joined: Wed Apr 29 2009, 12:22AM
Location: Los Altos, California
Posts: 1714
To conserve "etchant" chemicals, you can etch copper-clad material with plain salt water and electric current. Up to the point where areas that still need etching become disconnected from the current source. I have never tried it in a quantitative way, but figure 50 coulombs (0.83 ampere-minutes) can remove 1 square cm of 1 oz copper.
One criminal known to have dissolved many corpses was serial killer Jeffrey Dahmer.
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
ive noticed a new type of "Sharpie" marker, its meant for industrial use, high temp and otherwise un-preferred surfaces. Ill purchase one and make a comparison.
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Etching Tank, H2O2 + HCl, (Ant Farm Type).
