Gold and silver recovery from plastic IC Chips. Complete Process part 2

This video is part 2 of my method for recovering gold and silver from scrap plastic IC chips. I am trying to cram the entire process into one pair of videos. I have other videos that go into far more detail on some steps in the process. Please visit www.mdpub.com/U... for more information.
Equipment and supplies used in this video:
Refining Precious Metal Wastes by C. M Hoke amzn.to/3oNtvr0
300PCS 3ML Plastic Transfer Pipettes amzn.to/3f9JQ4B
AMMEX Clear Vinyl Medical Gloves amzn.to/2WBzB2A
Premium Filter Paper, 15cm, Pack of 100 amzn.to/379BZzu
Fuzion Digital Pocket Scale, 200g x 0.01g amzn.to/3zTkZdk
3pcs Glass Graduated Beaker Set 500ml, 1000ml, 2000ml amzn.to/3faaHO3
12PK Watch Glasses, 6" (15cm) - Cover Lids for Beakers & Flasks amzn.to/3j5MHMS
Filtering Flask, 1000ml - Borosilicate Glass - with Integral Side Arm amzn.to/2WvaC0G
JBF1150 Buchner Funnel, 1150 ml, Diameter 150 mm amzn.to/2WAamh7
Aroma Housewares AHP-303 Single Burner Hot Plate, Black amzn.to/378jL1p
#4-8Kg Clay Graphite Crucible for Silver, Copper, Brass, Aluminum amzn.to/3ffig5Z
Chemicals used in this video:
Custom Building Products Sulfamic Acid amzn.to/3lc3aSy
Bonide 1-Pound Granules Stump-Out, 4 Pack amzn.to/2Vlty1y
Duda Energy 5sn 5 lb. Sodium Nitrate amzn.to/3yeCcxo
Sulfuric Acid Drain Opener, 32 fl oz (2) amzn.to/3iX7Hpc
Tin Shot (1 Pound | 99.9+% Pure) Raw Tin Metal by MS MetalShipper amzn.to/3fclLKl
Iron Sulfate 4lb amzn.to/3xevPbQ