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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What chemical measurements are related to the degree of flavor extracted by alcohol?

A recent project of mine includes making infusions of various ingredients to make liqueurs and bitters. Infusions, I've learned, vary widely in the amount of flavor extracted from an ingredient. ...
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123 views

It is easier to iron cotton clothes when slightly wet, why?

As the title says, why is it easier to iron cotton clothes when slightly damp ? Has this got something to do with the hydrogen bonding in cotton ?
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301 views

Coffee and orange juice concentrations with a twist

This question dates back to a time where I used to watch something called The Curiosity Show... Kinda like Bill Nye the Science Guy's show. I just can't recall the answer to this so I'm hoping that ...
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131 views

Is passivation of stainless steel feasible in the field?

Does anyone have input or experience on passivation of stainless steel, particularly in outdoor environments where submersion of components is not practical due to location or size? Nitric acid (and ...
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719 views

Why does the black powder that comes off aluminum pans behave the way it does?

When I wet an aluminum pot or cookie sheet and then dry it with a towel, it creates dark gray marks on the towel. This happens more if the aluminum is a little rough. It seems that there's a fine ...
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240 views

Interaction between soy milk and coffee producing bubbles

I noticed when I poured my soy milk (which I shook as per the directions on the carton) into my coffee, a large number of very fine bubbles rose to the surface. What causes this? Is there a chemical ...
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47 views

Do chemicals undergo granular convection?

Do chemicals of an average weight, such as Polyethylene Glycols, undergo granular convection (the Brazil nut effect)?
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80 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 ...
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1answer
3k views

Laser cutting polyurethane

I have a laser cutting machine and have always read that PVC (or types of vinyl in general) are very dangerous to cut because it releases chlorine gas. Chlorine gas = toxic (plus the $\ce{HCl}$ thing),...
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1answer
3k views

What is the transparent film that covers water-soluble dishwasher tablets?

These dishwasher tablets (Finish Powerball Shine) seem to be covered in plastic! But that can't possibly be true since there's no unwrapping, and they're completely soluble in water. What is the ...
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40 views

Propylene Glycol to clean vinyl records

I clean vinyl records with an ultrasonic record cleaning machine. Would propylene glycol be good to use as a surfactant in a 1 - 2 % concentration with distilled water? Would it harm the vinyl record?...
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44 views

Is propanol 1-2 diol 178 the same as propylene glycol?

I clean vinyl records in an ultrasonic vinyl record cleaning machine the manual states it uses propanol 1-2 diol 178 as a surfactant. I think this is the same chemical as propylene glycol. Is it? ...
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Smoky lights at events - Piped in or a chemistry reaction of some kind?

Was at Dreamhack MTL this weekend and realised that in the whole venue there seems to be just a little bit of smoke in the spotlights and other light sources. You also see that kind of smoke in shows ...
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21 views

Non-chlorine bleach vs. hydrogen peroxide 3% soln from pharmacy: Disinfecting gravity water filter system

I'm seeking to disinfect a Platypus gravity water filter made with hollow fibers. My main concern is to address any mold / mildew that may have developed inside the hollow fiber filter due to long ...
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28 views

natural staining on wood from human skin

I have a question about the dark staining that occurs on my wooden spectacle frames where they rub constantly with my skin around the ears and nose. Can anyone tell me what is causing this? And could ...
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1answer
57 views

Why is the pH level of carbonation loss decreasing then increases afterwards?

We have done an experiment of the titration of unsealed sprite soda to find the amount of carbonic acid being loss on various duration (0 to 1 hour), due to decrease pressure. The calculation was to ...
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41 views

Definition of ionisation energy

My lecturer has defined ionization energy or ionization potential of a species A as the molar internal energy change, ΔU, for the reaction: $\ce{A (g) -> A+ (g) + e-}$ at $\pu{0 K}$, with reactants ...
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41 views

Why does coconut oil spoil much faster than groundnut oil?

I have observed that various foods cooked using coconut oil spoil much faster than foods cooked using groundnut oil. One good example is Asian coconut milk curry. Even with proper refrigeration, this ...
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60 views

How to make rheoscopic fluid using glycol stearate flakes

Rheoscopic fluid can be made by adding mica powder to water. I read that mica powder can settle and condense after sitting around for a long time. So I want to use glycol stearate flakes instead. ...
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12 views

Another salt-dough question

In January 2017, someone asked how salt dough worked. How does salt dough work?. In the answer it was said that the salt gives toughness. My question is would the size of the salt crystals matter. ...
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57 views

What governs the amount of smoke produced by an extinguished match?

First Chemistry question, so apologies if this isn't quite in the spirit of this SE. I have noticed that when extinguishing a lit match by blowing it out, the amount of smoke produced can vary widely....
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68 views

Bio dishwashing liquid affecting kitchen pipes?

I have a query regarding bio washing-up liquid. We've recently experienced slow flow in our kitchen drain pipes, and the plumber whom we asked to have a look at them showed us there was some non-...
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1k views

Citric acid rust removal and neutralization

I'm currently removing rust from steel with citric acid dissolved in water. I generally use a wire brush as the final treatment to remove any surface rust that the acid loosened up. The pieces under ...
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29 views

I mixed Miracle Gro fertilizer and Soil Mender Liquid Fish in my hose-end sprayer to save time. The mixture became very cold. Why?

Miracle Gro = Ammonium Sulfate, Potassium Phosphate, Potassium Chloride, Urea, Urea Phosphate, Boric Acid, Copper Sulfate, Iron EDTA, Manganese EDTA, Sodium Molybdate, Zinc Sulfate. Soil Mender ...
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212 views

What occurs when stannous fluoride is combined with baking soda in the oral cavity?

I have googled this question in many forms over many months repeatedly. For some background, when stannous fluoride is combined with water, it forms precipitates and/or oxidizes, rendering it less ...
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471 views

Why do gnocchi float when they are cooked?

Gnocchi is a kind of pasta made with flour, potatoes and eggs. They are cooked in boiling water and when they are ready to be eaten they float. Why do they float when they are cooked? I found two ...
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233 views

Gluing bakelite together

I have an older stainless steel saucepan with what I've always called a Bakelite handle. The pan fell, the handle broke. If possible, I'd like to glue it. The break is near where the handle ...
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121 views

Why is fluoride good for your teeth?

The main component of tooth enamel is calcium hydroxyapatite. I know fluoride ions can replace hydroxide ions in the enamel matrix, slowing the rate of enamel demineralization. Why does hydrofluoric ...
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48 views

Looking for Desiccants

I am an engineer and not the best at chemistry, I am horrible at it, but I was wondering if it is safe to mix sodium hydroxide and calcium oxide to make a desiccant that also captures carbon monoxide? ...
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111 views

Does alum react with zinc?

I want to remove a hardened steel bolt in a block of zinc (there is a through-hole, so I have two sides to work with). I have done this previously with aluminum and steel before, using a solution of ...
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33 views

Scent neutralizer

I'm an avid outdoorsman and outdoors photographer. I use a lot of scent neutralizers to help me stay hidden. Buying the store brands get expensive so I found a recipe to make your own. the recipe is 1....
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94 views

Why is paper sometimes yellow?

Where I'm from, most paper you find/get at stores has this yellowish tinge. Why is it yellow and not white? In my chemistry book it's mentioned that paper manufacturers "refine" paper from wood pulp, ...
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167 views

Windex and Red wine

The other day I was cleaning my counter tops with windex. There was a couple red wine (cabernet sauvignon if it makes a difference) stains from the night before and the stains turned an gray/blue ...
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413 views

Series of dilution without a constant dilution factor?

I have to make a series of dilutions though the dilution factor is not constant. I'm trying to understand how to carry out this dilution in the most efficient way as not to waste much solution. ...
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3k views

Isolation of codeine phosphate from Tylenol 2

So here is my question. This may be controversial for some, but I would like to tell you it is purely speculative and has no bearing on anything I would actually do. If one has in their hands a ...
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50 views

What makes wrinkle-free cotton, wrinkle-free?

Disclaimer: No, I don't own any "wrinkle-free" articles of clothing. So I haven't been able to observe first-hand if "wrinkle-free" clothing is totally "wrinkle- free" (if it isn't, then perhaps "...
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55 views

Krazy Glue Color Change

A type of Krazy Glue changes from purple to clear when it dries. What is the chemistry behind the color change? Is it due to a particular compound only found in this particular Glue? A description of ...
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77 views

Which of the following represents the steps needed to produce crystals from a solution?

From a solution of zinc sulfate, we have excess zinc in a solution and need to form pure crystals. Possible methods: A- Filter, concentrate the solution, evaporate to crystallization point. B- ...
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336 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 ...
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96 views

Is Jell-O flavored plastic?

Per this article, "Gelatin is a thermoreversible, cold-setting polymer." Further, Jell-O is flavored gelatin. Is the phrase "thermoreversible, cold-setting polymer" equivalent to the term "plastic?" ...
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85 views

Sunlight degradation of butyric and propionic acid

As I understand from Wikipedia article sweat is metabolized by skin flora primarily to butyric and propionic acid. What will sunlight do to these acids? Will my cloth smell less if dried in sunlight? ...
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265 views

Why are copper, iron and lead so common in everyday use?

Copper, iron and lead are commonly used around the world in construction, for pipes and in electrical wiring. Why are these used instead of zinc and magnesium?
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69 views

Why are heavy metal ions such as those of Hg and Cd toxic to animals?

Why are heavy metal ions such as those of Hg and Cd toxic to animals? While studying green chemistry I came to know about the Minamata disease caused by Hg and other disorders due to the accumulation ...
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30 views

What happens if I increase the amount of water on water based epoxies?

I am using a water based epoxy coating that is composed of a resin and a hardener. There is a specific amount of proportion to use to obtain the optimum cured coating. But I am trying to introduce ...
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5k views

What exactly is going on in this reaction: sodium bicarbonate (supersaturated aqueous), isopropyl alcohol, and acetic acid (vinegar)?

I had observed this reaction by playing around with vinegar and baking soda and do not completely understand it. Everyone knows that baking soda and vinegar goes crazy and starts creating carbonic ...
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258 views

How do I sterilize an obsidian blade without damaging it?

I recently came across this article on the use of obsidian scalpels in surgery: How Stone Age blades are still cutting it in modern surgery Now these scalpels are pretty fragile, with some of them ...
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310 views

Water condensation above dew point

Anyone who stores rust-prone instruments knows that even in temperature-controlled air spaces rust can form on uncoated steel. Since rust requires water, this suggests that water will condense out of ...
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104 views

Are there art supplies that create a new color by mixing through a chemical reaction?

When two elements or compounds react together, they form new compounds, which more often than not assume new colors. If the two elements or compounds don't react, they form uniform or non-uniform ...
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91 views

Why adding salt to kneading make it wetter?

Last week I tried a new recipe of pizza dough: 65mL of Water; 140g of Wheat Flour (typo 3); 7g of Yeast; 1 big spoon of Olive Oil; 25g of cooked potatoes; 1g of common salt; I think the recipe uses ...
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39 views

How are Kleenex Tissues Infused

Kleenex tissues are infused with long lasting scents - their scent is released when crushed. How does this work? I's like to know how to reproduce similar effect for another purpose. Who would be the ...