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Results tagged with everyday-chemistry
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user 62655
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.
2
votes
Accepted
Does hydrogen peroxide - urea become more active when illuminated?
I hate to answer my own question, but after some digging, I believe that the use of a light source is in fact a gimmick, at any concentration of the reagent, contradicting the only other answer so far …
- 519
16
votes
1
answer
6k
views
Why do green bell peppers become bitter when cooked?
Why do green bell peppers taste sweet raw, but become bitter when cooked (steamed)?
What chemical process is responsible for this? I don't believe the temperatures are high enough for the Maillard rea …
- 519
4
votes
2
answers
633
views
Does hydrogen peroxide - urea become more active when illuminated?
Dentists' tooth whitening systems and consumer kits use gels containing carbamide peroxide, also known as hydrogen peroxide - urea.
Dentists use a light activator: (image from Wikipedia).
Consumer …
- 519
6
votes
0
answers
221
views
Are all humectants sticky?
While using a topical lotion based on ethanol, water and propylene glycol, I noticed that it becomes sticky while drying. Propylene glycol is a humectant and is used for this purpose in pharmaceutical …
- 519
0
votes
1
answer
373
views
Why does brandy have a higher methanol-to-ethanol ratio than beer, despite the distillation?
From my googling, beer tends to contain around 16mg/L of methanol. While for brandy, typical methanol content is around 1000mg/L (give or take a factor of 3, depending) The distillation that brandy go …
- 519