Re:Diamond Prices Are in Free Fall in One Key Corner of the ...
by lelandbatey on Tuesday September 05, 2023 @09:09PM
(#37400116)
There are other impurities than air, but they don't contribute making the ice cloudy. The only thing making ice cloudy is the bubbles. And you can verify it experimentally in your own freezer just by using a different freezing technique to create perfectly clear ice: https://youtu.be/E1G1I1LJjrI
Re:Diamond Prices Are in Free Fall in One Key Corner of the ...
by freetime2 on Tuesday September 05, 2023 @09:21PM
(#37400237)
I don't think this video is really sufficient to prove your point that "the only thing making ice cloudy is the bubbles". The directional freezing technique is essentially a filtration method. Are you claiming that directional freezing filters out dissolved gases from the top layer of ice, but not other impurities? If so, can you provide further justification?
> The most common impurities found in tap water include lime (also known as limescale), calcium, fluoride, nitrates, magnesium and certain other organic elements that are practically impossible to remove with regular filtration methods. So, when water freezes, the impurities that were evenly distributed in the water, tend to congregate near the middle, making ice cubes the whitest at their center. [1]
> But the reality is, most of the “impurities” found in your freezer ice cube are more likely nothing more than the minerals present in your tap water. Tap water commonly contains minerals such as: Calcium, Magnesium, Potassium [2]
Do you have a citation to back up the claim that it's only air bubbles?
[1] https://www.scienceabc.com/eyeopeners/why-are-some-ice-cubes...
[2] https://blockice.com/blog/whats-the-science-behind-clear-ice...