Gold Recovery from Cell Phone’s Pins | Gold from Cell Phone's

Описание: Hello Viewers,
In this video, we are going to show you how you can recover gold easily only by using nitric acid. It will not be a pure gold recovery but we will show you how to refine the gold again.
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0:00 Introduction
0:26 Add 500ml water
0:35 Add 500ml HNO, (68%)
0:45 Leave it for 24 hours
1:23 The gold platings will peel off in the next 24 hours
1:33 After 12 hours
2:02 98% of the platings have peeled off
2:21 Let's separate the flakes
3:27 All the flakes from the pins
3:53 There are some stubborn platings
4:24 Let's catch the flakes in a coffee filter
5:00 Here's all the gold flakes
5:13 Add Sodium carbonate all over it
5:40 Let's melt the flakes to see what it becomes
8:13 Leave it for 5 minutes
10:06 Let's cotton filter the solution
10:21 Add water to the cotton
10:36 Add water 2-3 times
11:02 Add Sodium metabisulfite
11:11 Add more water
11:22 Leave it overnight
11:31 The next day
11:38 Let's pour out the liquid using the siphon
11:52 Don't let the pipe touch the bottom sediment
12:04 Filter the rest using filter paper
12:31 Spray water on it
12:51 Let's take the paper in a crucible
14:28 Add some borax
14:51 Here's our pure 24k gold