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In today's video I'm going to process BGA IC chips from computer motherboards , tv , and graphic cards. With the great yield of 10 g gold per kg materials. In first place i leached solder with nitric acid , Tin converts to Metastannic acid which i use it later to recover tin from. Then i did wet ashing process using sulfuric acid to open ic chips packages. after that gold bond wires became evident . After that base metals dissolved with nitric acid (copper was dominant metal) afterwards gold wires dissolved using aqua regia. To expel nitric acid i used sulfamic acid then i dropped gold with ferrous sulfate (FeSO4) . gold percipitate washed in hot HCl and melted. Pickyplans on : Instagram : / pickyplans Facebook: / picky.plans LinkedIn: / picky-plans-947973212 Twitter : https://twitter.com/PickyPlans?s=09 🌟Precious metals recovery playlist:🌟👇 channel 👇: • Precious Metals Recovery & Refining ✅ Don't forget to SUBSCRIBE 👇 https://www.youtube.com/PickyPlans?su... Gold recovery from 3kg cellphones Part 1 | Cyanide stripping • Gold recovery from 3kg cellphones Par... BGA Chips gold recovery| 3kg old cellphone Part 2 • BGA Chips gold recovery| 3kg old cell... Making Gold stripper | Part 1 m-Nitrobenzoic acid • Making Gold stripper | Part 1 m-Nitro... Honey GOLD test an alternative for Stannous chloride ! • Honey GOLD test an alternative for St... Gold recovery from 32 motherboards mix IC chips and transistors • Gold recovery from 32 motherboards mi... Best solution to ONLY dissolve Soldering (Tin) FAST • Best solution to ONLY dissolve Solder... Gold from 8 old motherboards | 5 kg • Gold from 8 old motherboards | 5 kg Recovering Tin and Lead from solder wire • Recovering Tin and Lead from solder wire #goldrecovery #gold #cyanides