How to Check the Purity of Gold (720p, 7min)

Good stuff

Firstly you are clear your concept specific gravity is unitless.

Thank you sir

If gold is not pure @88% or 82% or any then what will be the gravity of aloye in water? Please answer

Awesome

Thanks

thanks

Gravity or density.....confusing..

some gold bar has a tungstan metal inside because tungstan had a Density (near r.t.)19.3 g/cm3

Why you don't use water and scale?

For gold bar it is fine but how to check jwellery purity.

Good

Tumko khuch nhi aata hai

there is no other video ?

Thanks for showing the math, I learned something new

The gravity is overwhelming

Excellent calculation. Well done 👍🏾 👏🏾

thank u sir
thank u very much

How about the container without water? Why don't you calculate it too?

1g/cm³ is applied only when water temperature is equal 4°C. Hence, cold water (closer to 4°C) is better for precisely result.

This test fails when you have TUNGSTEN in pictue. The chinese are making gold bullions filled with Tungsten. Tungsten also has Specific Gravity of 19.22 gm per cubic cm, very close to that of gold and is very cheap compared to gold. Ultrasound test and Magnetic test on Gold bars can detect Tungsten inside gold bars. Plus normal Ping test can be done on Coins. Tungsten is DUD METAL. So it has no ping. Whereas Gold has a good and long ping. Just my two cents. Hope it helps.