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.

213 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
8
votes
0answers
248 views

Why does a sealed plastic bag of dish soap, water and air expand when shaken?

I've noticed that when I put dish soap, water and a little air into a sealed plastic bag, and then shake the mixture, it forms soap suds and the bag expands significantly in volume. Why does it expand?...
8
votes
0answers
281 views

DIY hand sanitiser solution forms spongy substance

I am trying to make my own hand sanitiser since it’s sold out everywhere. The formula I use is 1 part aloe vera gel in 2 parts 100% isopropyl alcohol. The problem is when mixing the two, the solution ...
7
votes
0answers
847 views

About Smoke Grenades and Sugar Rockets

The most common formula for smoke grenades and sugar rocket fuel is $60\%\ \ce{KNO3}$ (potassium nitrate) and $40\%\ \ce{C12H22O11}$ (sugar). This is a 3:2 ratio, but I've also seen 2:1 and 5:3 with ...
6
votes
0answers
2k views

How to dissolve slime jelly?

Suppose I have a small kid that had two cans of slime jelly (a Jelly made of water, glycerin, thickeners, dispersant, flavorings and pigments). And that two cans were inside a backpack, and somehow ...
6
votes
0answers
1k 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
votes
0answers
71 views

How much oxygen is used up by the browning of an apple?

This is inspired by a recent popular question on Cooking. Let's assume that I take some apples, cut them up, and place them in a hermetically sealed container. Then the container goes into the fridge. ...
5
votes
0answers
5k views

Storing alcohol in a thermos bottle

My thermos bottle's instructions say: Füllen Sie keine kohlensäurehaltigen Flüssigkeiten oder Trockeneis in das Produkt. Füllen Sie keine alkoholischen oder öligen Flüssigkeiten in das Produkt. ...
5
votes
0answers
119 views

Reaction of Rubidium with vacuum system viewport

I have a vacuum system ($<1\times10^{-7}$ mbar) filled with Rubidium ($^{87}$Rb) vapour, at room temperature. We also have a viewport near the Rubidium source, made of a stainless steel flange ...
5
votes
0answers
184 views

What makes "Color-Safe Bleach" color safe?

The ability of bleach ($\ce{NaOCl}$) to change the color of garments and introduce "bleach stains" is a well-known issue. In this question: Does bleach turn a substance white or colorless?, the ...
5
votes
0answers
1k views

How to dissolve a strong resin in difficult situation?

The resin is made up from two components: Component A: silicic acid, sodium salt (less than 10% sodium silicate) Component B: Diphenylmethane-4,4'-Diisocyanate, isomers and homologs (MDI,Polymer-MDI)...
4
votes
0answers
61 views

Why wouldn't a standard addition fluorometric method return the same starting concentration of a solution used to make the standards?

I am trying out a new standard addition method and having some very basic problems. I am hoping someone could point me in the right direction. I am using a fluorometric method to quantify ammonium in ...
4
votes
0answers
174 views

Is there an adhesive that is not dissolved by acetone?

I am trying to glue glass sheets together to make a sealed 13" x 13" x 13" box. Inside this box there would be acetone gas used to melt 3D printed parts to make them more durable. Acetone will remove ...
4
votes
0answers
248 views

Waterproofing and recycling paper

I've recently begun studying about waterproofing paper. Through what I learned is that the reason why paper absorbs water so easily is mainly because of it's material composition. Paper is generally ...
4
votes
0answers
238 views

Which (carbonaceous) fuels produce more or less soot in a diffusion flame, and how to predict that?

From what I've read, the production of soot in a flame is still an open research topic. But some hydrocarbon fuels produce much more soot than others. Are there (simple) rules that tell which fuels ...
4
votes
0answers
102 views

How can I test fruits and vegetables for certain insecticides?

I live in Turkey and I don't feel safe eating the fruits and vegetables that I enjoy that are plentiful here. After reading this article, I have been washing all fruits and vegetables with water and ...
4
votes
0answers
73 views

Remove redness in copper-nickel coin

I had a silver-looking coin (not valuable, don't worry) that was heavily covered in black. I thought it could be silver, so I cleaned it with the electrolysis method (salt + sodium bicarbonate ...
4
votes
0answers
1k views

Cat litter crystals causing toxic smell upon rubbing and pouring out of the package, safe?

I am under-educated in terms of chemistry hence the question and assumptions. Basically, for our cats, we are using what seems to be the latest scientific achievement in litter sand - the litter ...
4
votes
0answers
467 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 ...
3
votes
0answers
84 views

Why are holes appearing in this aluminum kitchen foil on my radiator?

I thought I would try to deal with dehumidified air from radiators by filling simple troughs of water placed on the top, which in theory would evaporate water as the radiator heated the air. I crafted ...
3
votes
0answers
39 views

Action of Fuller's Earth on Marble and Limestone

Using Fuller's earth is a very common and harmless way to treat marble and limestone that has been damaged/corroded by atmostpheric pollutants such as PM2.5/PM10 carbon particles (Soot) , Oxides of ...
3
votes
0answers
44 views

Can color-changing leuco dyes be used to indicate when a certain molecule binds to another in a textile fabric?

Thermochromic leuco dyes change color when the temperature changes. I want to use leuco dyes to make a color-changing fabric. However, instead of using temperature to induce color changes, I want the ...
3
votes
0answers
19 views

Adsorbable Organic Halides (AOXs) in bleach residue

I have a question regarding using household bleach, and wonder if someone knowledgeable can help, please? I have used household bleach (sodium hypochlorite, sodium hydroxide, coco alkyldimethyl, ...
3
votes
0answers
39 views

Why does whey protein powder make porridge much less viscous?

When I mix whey protein powder into warm porridge (that I cooked in the microwave), the thick porridge becomes much less thick. I searched this, and I found several forum threads discussing this too ...
3
votes
0answers
81 views

How can I solubilize fragrance oil into polyvinyl acetate/clear glue?

I'm a high school student who makes slime for fun, using polyvinyl acetate (PVA) glue and borax as my main ingredients. Earlier, I had the idea of adding fragrance oils to clear glue. However, because ...
3
votes
0answers
148 views

Cleaning silicone molds

I am a musician who wears custom-molded in-ear monitors made of silicone. They are rather expensive so I need to constantly clean them and carefully. I was told not to use isopropyl alcohol (96%) ...
3
votes
0answers
47 views

Formic acid and carbon monoxide outgassing from latex mattress

Formic acid is used as a coagulant to turn rubber tree sap into latex, formic acid also decomposes to carbon monoxide. Does this mean things like latex mattresses have the potential to off-gas carbon ...
3
votes
0answers
689 views

What does it mean "polyester doesn't breathe"?

Often people say buy a cotton shirt because cotton "breathes" but polyester doesn't. (i.e. it makes you hot sweaty). What is the scientific meaning behind this? How does polyester trap the heat more ...
3
votes
0answers
734 views

Why does chewing gum get hardened after drinking water?

Why does chewing gum get hardened after drinking water? This is a basic question, but please don't say temperature change, because I've tried that, and it never gets back to same elasticity. There ...
3
votes
0answers
57 views

How to align povidone-iodine molecules in order to look for optical polarization

In this answer I mention how early polarizing filters (e.g. sunglasses) were made by doping a polymer with iodine atoms and then stretching the film to orient the polymer molecules. Electrons donated ...
3
votes
0answers
129 views

Why do certain mixtures foam and others don't? How to predict if a mixture will yield a foam?

I recently acquainted myself with the skill of whipping a mixture of sugar, fresh brewed/ hydrated instant coffee into a pale, fluffy, stiff and stable foam. This, as some might know, is known as Café ...
3
votes
0answers
53 views

"Non-stick" action on ceramic-coated pans

I understand how PTFE, or Teflon as it is commonly called, prevents anything from sticking to pans; apparently, anything coming into contact with the PTFE coating has ignorably tiny van der Waals ...
3
votes
0answers
701 views

Can fat make rubber gloves stiff?

Sometimes I use dishwashing gloves when carving cooked duck, which is very fatty. I have noticed that over time my dishwashing gloves seem to be shrinking a little bit and getting stiff. Could this be ...
3
votes
0answers
35 views

Carbon footprint rules of thumb

Could someone perhaps check the rules of thumb that I use for estimating the carbon footprint of hydrocarbon fossil fuels- I'm using schoolboy chemistry theory, and possibly falling into schoolboy ...
3
votes
0answers
35 views

Gel in water machine

I have a hot and cold water dispensing machine from my water company. I use 5 gallon water jugs delivered ever 3-4 weeks. The machine has a tank in it where water is kept cold until dispensed by ...
3
votes
0answers
96 views

What causes steel rubbing on wood to leave grey or black marks?

In my own experience, running or rubbing a high-carbon steel on wood leaves a pencil-like trail. Is this simply carbon rubbing off, or is it a more complex reaction involving tannins in the wood, like ...
3
votes
0answers
66 views

What is Hydroxy Methylbutyrate-Ca and what is it's relation to butyric acid

First of all, I am nowhere near familiar with chemistry. But I really need help with this question. A certain product contains "Hydroxy Methylbutyrate-Ca" and I need to translate this ingredient in ...
3
votes
0answers
38 views

Kitchen Counter Endothermy?

I am not a chemist. But I am curious... This evening I was making ingredients for a "lemonade bar", where people mix various flavors into a lemonade base to create custom flavors (mint + cucumber is ...
3
votes
0answers
231 views

How to make a placebo drink taste convincing?

I'm trying to make a placebo alcoholic drink - something strong (cognac, whiskey or vodka). Is it possible to make a drink containing absolutely no alcohol taste like it's got 30 or 40% alcohol? What ...
3
votes
0answers
81 views

Any way to guess what these crystals are?

Is there any way to guess from these crystals what minerals formed them? They came from ordinary tap water. I was cleaning out a room humidifier which hasn't been used since last year when I ...
3
votes
0answers
92 views

Sand Under Pool Turned Gold in Color

I'm removing an above-ground chlorine pool installed years ago by a previous owner of my house. Looking underneath the pool, I found that the sand on which it's resting is a gold/bronze color with a ...
3
votes
0answers
303 views

Can the properties in a tomato help make hair curl?

Is it possible for the active properties of a tomato to turn your hair from straight to curly? And what are the active ones that do this and why?
2
votes
0answers
69 views

I have tried to remove oxidation from a metal scraper using vinegar, now the metal looks and smells burnt, what went wrong?

I have recently tried to remove some oxidation from a metal scraper spatula by using vinegar. After leaving it there for a couple of hours I was left with a burnt smell (with a hint of burnt candle ...
2
votes
0answers
49 views

What is the rate constant k for the reaction between potassium manganate and oxalic acid?

For my school's chemistry classes, I am investigating the kinetics of the redox reaction between $\ce{K2MnO4}$ and $\ce{C2H2O4}$. I analyzed the data using a colorimeter set to $\pu{565nm}$. ...
2
votes
0answers
27 views

What are the common procedures for viewing suspensions of volatile organic compounds under an optical microscope?

I am looking to measure a mixture of triethylamine and water in a micro-Raman instrument. This involves placing the sample under an optical microscope. The "default" sample preparation is to ...
2
votes
0answers
23 views

Glycerin yield upon saponification of beeswax

I am making a custom grease (castor oil & sodium stearate) that will be suspended in beeswax. I have found that saponifying some beeswax for use in the grease results in higher operating ...
2
votes
0answers
65 views

Is Polyethylene Glycol always derived from Ethylene Glycol? If not, how does it differ?

I have heard Polyethylene Glycol is derived from Ethylene Glycol, so was doing some research to see how they differ and found this. Now this states that: Polyethylene glycol is produced from the ...
2
votes
0answers
43 views

How efficient is Zinc Acetate as an Oxygen absorber?

I used to work in a microbiology lab and they used zinc acetate as O2 absorber for the anaerobic chamber. Was this an efficient way to scrub O2 from the air? I am asking because I want to make an N2 ...
2
votes
0answers
132 views

Can I extract solid sugar from any fruit juice at home?

The goal here is to isolate the sugar from all other compounds in the juice. In this case, I'm using apple juice and grape juice. The sugar does not need to be edible, as it is being used to make r-...
2
votes
0answers
29 views

General Question about transferring Solution from containers (Workplace Related)

At my workplace we will soon begin diluting a solution to specific concentrations, this is done within a specific container. The solution to be diluted is provided by a manufacturer in the following ...
2
votes
0answers
4k views

Isopropyl Alcohol Vs Acetone for Dissolving Organic Contaminants on PCB

Acetone is widely used in the labs as a solvent to clean the vials and tubes as it is good solvent for organic materials. While Isopropyl alcohol is used as a rubbing alcohol for cleaning contaminants ...

1
2 3 4 5