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Questions tagged [everyday-chemistry]

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.

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1answer
205 views

Is Acrylamide carcinogenic? Why?

Recently concerned with health effects by common chemicals existent in food I've been rather busy reading article after article; and just an interesting one came around: Acrylamide (or acrylic ...
10
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4answers
8k views

Synthesis of hydrazine with bleach and ammonia

I am trying to make rocket fuel using hydrazine, hydrogen peroxide and home products. I want to put an action figure in orbit. Is there any way to synthesize hydrazine with bleach and ammonia, using $...
9
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1answer
2k views

What is the chemistry behind cleaning silverware with aluminium foil

This question has a accepted answer on this site already: What happens during cleaning silverware? but the reason I ask the question again is because I found different "recipes" for the technique ...
9
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3answers
8k views

Why does hand sanitizer leave your skin feeling cool?

I noticed, and perhaps many others have too, that the application of hand sanitizer (mainly ethanol), leaves one's hands feeling rather chilly after application. What is responsible for this ...
8
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1answer
2k views

Why ginger reacts with sparkling water?

I think that the ginger ale is born this way. Anyway, if you put the ginger in a glass and add sparkling water, small drops splash out of the glass, the water is fizzier, more effervescent. Why? ...
8
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1answer
2k views

How does WD40 displace water?

How does WD-40 displace water? Or does it even displace water? WD40.com explains what WD-40 stands for: WD-40® literally stands for Water Displacement, 40th formula. That's the name straight out of ...
8
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2answers
7k views

Can sodium bicarbonate be considered an acid?

I was reading about acids and bases today and finally decided to question the statement that "baking soda is a base." Let's start with the dissolving of baking soda, $\ce{NaHCO3}$. The equation to ...
7
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1answer
1k views

What is the difference between wet paint, dry paint, and in between those stages?

A day after painting a closet, I set a piece of wood on the wall of the closet that was painted a day ago as well. Within minutes, both of their layers of paint fused together (please correct me if ...
7
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2answers
9k views

Why does milk flake?

While drinking milk (or better 'while seeing the milk I'm gonna drink') a question came up to my mind: Why does the milk sometimes flake, even if not in contact with some other substances? I guess ...
7
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1answer
803 views

What is the molecular structure of the coating on cast iron cookware known as seasoning?

When a piece of cast iron is repeatedly covered in fat and exposed to heat it develops a hard, black, non-stick coating referred to as "seasoning". What exactly is this coating made of molecularly? ...
7
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3answers
2k views

Is the behavior of a dilute strong acid the same as the behavior of a weak acid?

My assumption is yes, as the $\mathrm{pH}$ levels of each will be similar and thus they have the same acidity. Is this correct or am I missing something?
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2answers
3k views

Is there a flame which doesn't produce smoke?

I read a book where it states the following: There are many types of flame and there are even flames which don't produce smoke. After reading it, it just got stuck in my mind. Is there a flame ...
6
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5answers
16k views

How to dissolve steel without affecting aluminium alloy

Disclaimer: I have very limited knowledge of chemistry My problem is the following: I have motorcycle part made from some sort of Aluminium alloy - most probably 6005, 6061-T6 or 7005. And inside of ...
6
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0answers
673 views

Sugar burning with the assistance of ash

If a plain pile of sugar (or a sugar cube) is heated with a torch, it just melts and gives off smoke. However, if some paper or wood ashes are added, it burns quite easily. What are the ingredients of ...
5
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2answers
95 views

Scientific Reason for Salt Solution Gaining Volume

A little background to this question: my mom placed a glass with salt and enough water to just cover the salt in a room to "absorb negative energy" out of the room at her office. It obviously "worked"....
5
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2answers
4k views

Safe endothermic reaction that gets below freezing?

I have a project/idea I am working on but I am only 14 years old and I need some help. I'm looking for an endothermic reaction that gets below freezing, but the chemicals before the reaction and ...
5
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3answers
1k views

Are homemade batteries economically practical?

Every kid who has been to a science fair knows that you can make a battery with a lemon, a potato, a penny and a nail. I've never done this and I'm not entirely clear on how it works beyond a hazy ...
5
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2answers
8k views

Is dissolving salt a chemical reaction or a physical change?

Physical changes are limited to changes that result in a difference in display without changing the composition. (source) e.g. melting water or dissolving sugar in water Chemical reactions are ...
5
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1answer
3k views

Why does zinc sulfide glow?

Zinc sulfide is used in road signs because when light from cars hit the road signs, it glows. What actually is the reason for the glowing of road signs (actually glowing of $\ce{ZnS}$)?
5
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1answer
5k views

Does citric acid react with carbonated water?

I've noticed that when adding lemon juice to carbonated water, large 'soapy' bubbles appear on the surface. Since I'm adding another acid to a solution of carbonic acid, I would maybe expect a faster ...
4
votes
1answer
2k views

What are the active ingredients of shampoo, and how do they work?

After seeing one too many TV commercial about the fantastical properties of different high-profile shampoo products all "with documented effect" it suddenly struck me that I never actually researched ...
4
votes
1answer
1k views

Why does pouring soda slowly and smoothly seem to keep more of the carbonation?

So, I caught myself gently pouring a can of soda into a cup of ice (making sure that there was room for air to move through so the stream of soda from the can to the cup was consistent and even) ...
4
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5answers
11k views

Homemade reactor for water cooling

Background: Well, it's summer here in Brazil, and a great way to keep cool is drinking a so called Tereré, and, of course, we do need cold water for that. Problem: I was looking for endothermic ...
4
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1answer
484 views

How does salt dough work?

Sorry for coming in here with little chemistry knowledge and a pretty inane question, but my googling skills have completely failed to cut through the enormous combined output of the baking brigade ...
4
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1answer
36k views

Deodorizing using baking powder instead of baking soda

I am an engineer and I understand the difference between baking power and baking soda as baking powder is baking soda (alkali) with tartaric acid (acidic) and an inert starch (why? Is this a catalyst ...
4
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1answer
10k views

Is there a way to dissolve glue?

Background: I have a journal from my childhood. I applied glue (uhu brand. this one) to the papers almost 10 years ago. Q: Is there a way to dissolve the glue and make the pages readable?
4
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1answer
230 views

Is it possible to make broad spectrum light absorbing paint?

Is there such a paint / pigment that absorbs most wavelengths of light (beyond the visible light range) that can be used for solar heat generating applications? If not, would it be possible to make ...
4
votes
1answer
7k views

Why do some gases liquefy easily under pressure and normal room temperature?

Is this a combination of Boyle's and Charles' Laws or simply one of them? I'm confused as to which applies. I don't feel I fully understand the implications of both laws individually and I'm ...
4
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3answers
2k views

Liquid-Liquid phase separation

Consider a container that contains a mixture of many liquids. Can two of these liquids phase separate without having any significant effect on other liquids inside the container? Is there a feasible ...
4
votes
2answers
617 views

Melting ice with salt - how does it start?

I know that salt reduces the melting point of ice. I can see how a little bit of salty water can melt ice to water which can dissolve even more salt. But how does it even start? There is ice, which is ...
3
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1answer
75 views

Iodine medical products

After an injury or getting a scare it is typical to use medical products containing iodine. They typically leave a huge red spot on the skin. Why are creams and solutions containing iodine used in ...
3
votes
1answer
1k views

Decomposition of iron(III) acetate?

I recently asked about the synthesis of iron (III) acetate. I want a rather concentrated solution to use as a calligraphy ink (which will be dissolved in alcohol/water). Will it be okay to heat the ...
3
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3answers
23k views

Boiling point of a liquid increasing with temperature?

In my textbook, a statement is given, as follows: Boiling point of a liquid increases with increase in temperature However, I was wondering, isn't this wrong? The boiling point of a liquid always ...
3
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2answers
4k views

Why is mercury used in thermometers?

I know it expands when hot and grows compact when cool (that's about all I know), but I suppose many other substances do, too. Also, and excuses for my ignorance, what the term used to describe the ...
3
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0answers
295 views

Brewing tea with deionized water

I am wondering what efect brewing tea (let us assume for the sake of simplicity it is green tea, brewed at about 80 °C) in deionized water might have on the product. Will the lack of ions in the ...
2
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0answers
174 views

What is smell??How come 2 things have the same smell [closed]

I have been wondering how something smells. How come something smells the same as other thing? What is similar in them? Like what is the chemistry behind a particular smell of a substance? For ...
2
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1answer
1k views

Does acetone eat through Thermoplastic polyurethane and Polycarbonate

I used nail polish remover on an expensive phone case to remove sticker residue (and it worked, no longer sticky). I didn't know it didn't mix well with plastic materials. Did the acetone damage it?
2
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1answer
3k views

Is soap the natural form of Sodium Lauryl Sulfate?

I was told that "Sodium Tallowate, sodium cocoate and sodium palm kernelate are the 'natural' forms of SLS". Is this true? I thought "natural" SLS would be SLS derived from a natural product such as ...
2
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1answer
4k views

Soap versus Shampoo

Soap and shampoo are both cleaning agents in our daily life. Why is soap in solid form and shampoo is in a liquid form, though? Is it because of the chemical components inside them or another factor?...
2
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3answers
5k views

Why do sealed plastic bottles of pop collapse as the contents get old?

A number of bottles of pop (two varieties) in unopened plastic bottles have sat for a few years in a room-temperature environment. All of the bottles have now collapsed a certain amount (all to about ...
2
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1answer
1k views

Ethyl alcohols use on polycarbonate and acrylics

I have an interesting question about the use of ethyl alcohol on polycarbonate windshields. I have had friends asking me about the use of Pledge Multi-Surface cleaner on their windshields. Some ...
2
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0answers
75 views

Clean tin with aluminium

I've been using aluminium foil and table salt to clean my silverware for a long time without actually concerning myself with the chemistry behind it. A couple of days ago i started digging into the ...
2
votes
1answer
9k views

Why is sodium chloride edible whereas both sodium and chlorine are highly reactive?

Sodium chloride is edible. But elemental sodium and chlorine are highly reactive and poisonous. What is the difference? Also, is there any difference in eating sodium chloride in powder form and ...
2
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1answer
621 views

Physical state of the carbon denoted with “gr”

I would like to know what does a gr mean when used to represent the physical state of the carbon, for example, in the synthesis of the glucose $$\ce{6C_{(gr)} + 6H2_{(g)} + 3O2_{(g)}-> C6H12O6_{(\...
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1answer
296 views

What reaction occurs when etching copper to create circuit boards?

The components used for etching copper are acetic acid, hydrogen peroxide and sodium chloride. I think the equation may be similar to this: $$\ce{2H3C2O2H + H2O2 + 2NaCl + Cu -> CuCl2 + 2H3C2O2Na +...
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1answer
680 views

Is it safe to store muriatic acid, hydrogen peroxide and acetone?

I am recently getting into PCB etching. So I use 10 M HCL solution, 3% hydrogen peroxide mixed in 1:1 ratio for my etchent. Currently, I am storing my HCL and hydrogen peroxide in my shed which can ...
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1answer
5k views

Mixing bleach and ammonia?

I know that the two should not be mixed, but i want to know that if the two become mixed in a contained unit, does it build pressure? Or can you seal the container safely untill it can be disposed of ...
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1answer
2k views

What reactions create a lot of gas really quickly?

I'm looking for a chemical reaction that produces a large amount of a gas in a very short amount of time (like less than a second). What are my options?
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0answers
271 views

Methods to extract sucrose from tea after it's been stirred in?

Sugar is often labelled "white poison" now-a-days and a lot of negative health consequences happen due to increased sugar consumption. Keeping this in mind, if I were handed a cup of tea (with sugar ...
1
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1answer
160 views

Recipe for paper glue

I need to produce paper bags. Is there any simple receipt for making paper glue so that brown (packaging) paper will stick to itself?