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Questions tagged [chemistry]

The science of matter and the changes it can undergo.

11
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1answer
1k views

Can a dead mouse sealed in a can of soda dissolve into a jelly-like substance in one year?

A soft-drink company argued in a "dead mouse in a can of soda" case that an intact body of a dead mouse is unlikely to be found inside a can of soda because the dead mouse would have been dissolved by ...
8
votes
1answer
593 views

Does wetting your toothbrush have health effects?

Today I read a tweet from @Funny_Truth: "Don't wet your toothbrush after you put toothpaste. Water will reduce the healthy benefits of toothpaste." Is it true? If it is what does actually ...
6
votes
1answer
51k views

Is Paraffinum liquidum (mineral oil) in cosmetics dangerous?

Paraffinum liquidum can be found in a lot of cosmetic products. Some articles say it is harmless but the other half said it causes harmful effects such as the premature aging of the skin. Examples ...
5
votes
1answer
493 views

Does fluoridation and chlorination in the US cause thyroid issues?

From an answer in Travel.SE with a net score of 10: Mains water is typically laced with chlorine and fluoride by law, to the point that you step out of the shower smelling [like] you just stepped ...
10
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0answers
266 views

Do vacuum wine stoppers help preserve wine?

Vacuum wine stoppers are very popular, but I don't know how effective they actually are. I've been unable to find any scientific results. I have found plenty of people who have bought the products and ...
8
votes
0answers
299 views

Do covered [drinking water] reservoirs cause health risks compared to open-air reservoirs?

Bull Run Waiver.org is a political group opposed to covering drinking water reservoirs in Portland, Oregon. They making a number of claims that closed reservoirs introduce greater health risks than ...
8
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0answers
2k views

Does baking soda eliminate a cockroach infestation?

My questions concerns a population, more significant than simply exterminating an individual cockroach. Claim: http://pest.tips.net/T003494_Kill_Roaches_with_Baking_Soda_and_Sugar.html If you're ...
8
votes
0answers
1k views

Would baking soda and vinegar clean hair, and how?

There's a popular hair cleaning regime circulating in the 'green' blogs called the "no 'poo method." Rather than using shampoo, one rinses the hair with a tablespoon of baking soda in a cup of water, ...
8
votes
0answers
978 views

Do the water filters in Pure & Clear filters work?

Dr Mercola advertises Pure & Clear Filters: Pure & Clear filters use a “selective filtration” process rather than a mechanical one for a couple of very important reasons. This advanced ...
7
votes
0answers
469 views

Are angel food cakes cooked in tube pans because they need support?

According to Cooks Illustrated: There’s a good reason angel food and chiffon cakes are always baked in tube pans, and it’s not just aesthetics. These specialty vessels actually help delicate cakes ...
7
votes
0answers
404 views

Is diet soda as bad for your teeth as regular soda or methamphetamine?

I've heard of many claims about soda water itself containing carbonic acid (as claimed by a teacher I had in high school) and having a generally high pH that's enough to destroy one's teeth. This ...
6
votes
0answers
188 views

Does commercially-produced cotton cloth contain unhealthy chemicals that cause fertility problems?

The article Czy Twoje ubrania Cię trują? "Wchłaniamy chemię przez skórę. Stąd np. problemy z płodnością" (Do your clothes poison you? "We absorb chemicals through the skin, hence, for example, ...
6
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0answers
1k views

Will storing plastic water containers on concrete cause contamination?

Several preppers make the claim that storing plastic containers with water on concrete floors is bad because chemicals from the floor can leak into the plastic and then end up in the water. Here are ...
6
votes
0answers
330 views

Is water with extra oxygen tastier, healthier, or otherwise desirable for humans?

In Japan, it is apparently common to add oxygen to bottled water. But this isn't standard H20. It's a new mix containing 12 to 15 times as much oxygen as regular water. (...) "It's totally ...
4
votes
0answers
840 views

Does “liquid-injection damp-proofing” work to water-proof walls?

There are technologies for sale, especially in Germany, to drill holes in the walls of a cellar, and inject into the concrete or masonry a liquid, such as Sodium Silicate The manufacturers promise ...
4
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0answers
605 views

Is typical indoor concentration of VOC correlated to concentration of CO₂?

A vendor of VOC (Volatile Organic Compound) sensor claims the VOC concentration correlates highly to CO₂ concentration in a typical conference room: Figure 2 illustrates the correlation of true CO₂ ...
3
votes
0answers
189 views

Is there any scientific basis to this “catalytic converter” to treat hard water?

I came across this product called Softer Water Conditioners. It includes a lot of scientific sounding mumbo-jumbo to explain how it works, which raises my skepticism. Is there any scientific basis to ...
3
votes
0answers
216 views

Are the chemical compounds BPA, BPS and BPF harmful to humans?

According to the following article by Time, and the study that it cites, several compounds of the chemical bisphenol - used in commonly-handled products like shopping receipts and plastic containers ...
3
votes
0answers
465 views

Will plant-life on Earth end due to too little CO2?

According to a 2013 Daily Mail article : greater evaporation and chemical reactions with rainwater will take away more and more carbon dioxide. In less than a billion years, its levels will ...
3
votes
0answers
502 views

Is vinegar dangerous for dishwashers?

This post claims that putting vinegar in rinse aid reservoir of a dishwasher leads to damage (similar claims can be found here and here): on newer dishwashers, the rinse aid compartments have ...
3
votes
0answers
556 views

Are bleaching powders effective cleaning agents?

The claim from the manufacturer: Have you seen a stain on your clothes that you can't seem to remove? Don't fear! Vanish Oxi Action Powder contains Oxi Powerlift which removes all types of stains, ...
2
votes
0answers
1k views

Does chlorine in water harm soil bacteria?

This article claims that both chlorine, and chloramine, which are added to many municipal water supplies to kill harmful bacteria, can also harm the good bacteria in soil, necessary for a healthy ...
2
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0answers
225 views

Are plastics making us fat and giving us diabetes?

A recent widely reported news story (example report from the Independent) suggested that one explanation for the modern rise in obesity was not too much food or two little exercise but many of ...