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Applications of chemistry to reagents, reactions and processes of everyday life. Use this tag for question on chemistry in an out-of-laboratory/class context. DO NOT use this tag merely because the question is about simple chemistry.
6
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3
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How to chemically postpone a chemical reaction
This question is about delaying/postponing chemical reactions in general, but I will explain my point based on an example. Most of you will know the famous vinegar and baking soda experiment which all …
6
votes
2
answers
1k
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Why does water cause a jet flame when poured over a bunch of tealights?
A neat party trick (typically for outdoors) is to build a pyramid of tealights, let them burn for a while and then pour a bit of water over it and see a large jet flame shoot out (see e.g. this youtub …
3
votes
1
answer
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How does grease become airborne?
When cooking in the kitchen you usually use some oil or butter to bake your meat and potatoes in. After some weeks without cleaning (which happens every now and then) the surroundings of the stove wil …
6
votes
1
answer
3k
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Removing wine stains from a decanter
I have a decanter which I use fairly often to pour out wines. I typically rinse it with hot water after the last wine has come out, but I cannot prevent it from forming 'residual' wine stains over tim …
9
votes
1
answer
355
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Stripeless cleaning of windows
Last week I was discussing with a friend how we thought the stripeless cleaning of windows is achieved when using a cleaner like Windex Glass Cleaner as opposed to just using hot water, in which case …
4
votes
1
answer
1k
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Effect of vibration on wine quality
Most people that have ever visited a viticulteur (winemaker) will know that it is common wisdom that vibrations are bad for the wine quality. When I was just a kid the winemaker always told me that we …
6
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2
answers
4k
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What are the physico-chemical processes at play in ironing of clothes?
The process of ironing of clothes removes (to a large extend) the wrinkles that where introduced in the clothes while drying. Obviously this has to be some physico-chemical process that is initiated/s …
6
votes
1
answer
624
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What chemical reaction can cause this blue-ish deposit?
Recently I noticed that some of our glasses and cutlery had developed a blue-ish deposit as you can see for the two sets of spoons below. For each set the spoon on the left has the blue-ish deposit wh …
25
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2
answers
26k
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What is the smell of 'burning' metal?
When a pass a construction site where someone is welding two pieces of metal together there is a very distinct smell that I associate with 'burning' metal, although I am not quite sure it is burning i …
88
votes
5
answers
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Does water really 'go bad' after a couple of days?
Among my friends it is a sort of 'common wisdom' that you should throw away water after a couple of days if it was taken from the tap and stored in a bottle outside the fridge, because it has 'gone ba …