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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.

2
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0answers
53 views

Pulling Calcium Phosphate from Animal Bones

I am looking to pull Calcium Phosphate out of animal bones (chicken, fish, etc) without destroying the collagen. If I soak animal bones in brown rice vinegar will the vinegar pull out Calcium ...
0
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0answers
198 views

Changing the color of bismuth crystals

Could someone please help me with a project? I can quite confidently grow bismuth crystals with the usual violet, purple, and blue colours (and in the very centre green), but how can I obtain just ...
1
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0answers
54 views

Given advancements of computational power an machine learning, how is it still not possible to predict products from chemical reactions?

Given that it seems every answer to this question is that it is "impossible to predict the outcome of a chemical reaction." Is chemistry just trial and error? Given how fundamental and revolutionary a ...
1
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1answer
40 views

Difference between Phase, heterogenous and state of matter and solution

My question has already been answered in parts at Difference between state of matter and phase But for deep and real understanding I have to ask for the difference between phase and a heterogenous ...
2
votes
1answer
35 views

Keeping an open, partially empty soda bottle bubbly longer

I remember as a kid being able to get a little pump which you could screw onto a half empty soda bottle (I believe the bottles were glass at the time) to pump air into it to keep it fizzy for longer. ...
1
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0answers
22 views

Cationic Detergent with no odor [closed]

I am looking for a cationic detergent for a project. Unfortunately most ( or all?) cationic detergents are quaternary ammonium that smell like rotten fish or even worse The product I am working on ...
1
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0answers
111 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 ...
3
votes
1answer
126 views

How to measure ratio of Na to K in table salt?

Some people state, that the salt which we buy at the supermarket contains too much potassium chloride. For me it seems to be a hoax, but I want to have a proof. Is there any way to measure the ...
6
votes
1answer
158 views

Could muscarine be an antidote to atropine poisoning?

According to Wikipedia, "Muscarine poisoning is characterized by miosis, blurred vision, increased salivation, excessive sweating, lacrimation, bronchial secretions, bronchoconstriction, ...
-3
votes
1answer
262 views

Would a button cell battery contain mercury? If so, why?

I was wondering if an alkaline button-cell battery that says $0~\%\ \ce{Hg}$ is actually completely mercury free or if it is still considered to have traces of mercury. Why do some batteries say no ...
2
votes
1answer
828 views

Does graphite burn?

I just want to know is it possible to make graphite oxidize in the presence of oxygen as it is possible to make other forms of carbon oxidize and even burn with the production of residual heat in the ...
3
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0answers
39 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 ...
5
votes
1answer
108 views

How does a combustion process produce carbon monoxide?

My question is in the context of combustion heater safety- I want to identify the mechanism by which CO is produced, and hopefully have additional understanding, and clues to the warning signs, to ...
-2
votes
1answer
218 views

Solving displacement of volume in water after a object is dropped inside the water container? [closed]

A $\pu{53.7 g}$ object having a density of $\pu{5.39 g mL-1}$ is added to a graduated cylinder containing water and sinks to the bottom. The water level is now at the $\pu{82.2 mL}$ mark. What is the ...
3
votes
0answers
72 views

Can a chemical reaction cause a cigarette to taste bad? [closed]

I'm currently researching an idea where I'd like to find out if there is any chemical we can put in toothpaste that would react badly with tobacco smoke? The idea is that smokers can just brush their ...
0
votes
1answer
1k views

Mixing isopropyl alcohol and propylene glycol [closed]

What would happen if I mixed isopropyl alcohol and propylene glycol? I need to winterize the water base of my basketball hoop, and already added some isopropyl alcohol, but I discovered that propylene ...
0
votes
2answers
87 views

Using quantiative analysis to find empirical and molecular formula

A compound of Ca, C, N and S was subjected to quantitative analysis and formula mass determination, and the following data were recorded. A $\pu{0.250 g}$ sample was mixed with $\ce{Na2CO3}$ to ...
-3
votes
3answers
50 views

Converting plastic back to bio-degradable substances [closed]

I have read that every plastic ever made still exists. Plastic must be made of some substances that are biodegradable. Even if they aren't, why can't we change their form? Why can't we change plastic ...
24
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2answers
2k views

How to properly store acids at home?

I bought different kinds of acid for experiments and home usage that I stored in secured containers into an IKEA cabinet. I just realized that despite the fact that all the containers are properly ...
-1
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0answers
13 views

How many times can you dilute a liquid before it is no more? [duplicate]

if I drink half a glass of juice and refill with water (now half water half juice), then repeat (3/4 water 1/4 juice), and so on...Will the glass ever just be water (100% water, no juice)?
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1answer
168 views

Can I safely use gelatin to mix with 25%-35% peroxide to make a gel? [closed]

Can I safely use gelatin to mix with 25% - 35% peroxide to make a gel or should I use glycerin?
0
votes
2answers
47 views

How to replicate compositions of discontinued paints?

I am a house painter, over the last 20 years I've noticed that discontinued lines of paint are much better. These paints were vinyl acrylic. Now the vinyl has been removed. I'm wondering if adding 1&...
4
votes
0answers
87 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 ...
23
votes
1answer
1k views

What is K2O-nSiO2-xH2O?

In need of $\ce{K2SiO3}$ for my cucumber plants, I purchased a bag of potassium silicate. The molecular formula is $\ce{K2O-nSiO2-xH2O}$. Normally, my bags of fertilizer are easy to figure out. For ...
1
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0answers
27 views

Does heat loosen “corrosive bonds” in iron compounds… permanently?

One [obvious] way to remove a seized nut is to heat it [thus enlarge it]... more than the bolt. But that's not the only way to use heat in this application. Apparently you can also let the stuff cool ...
1
vote
2answers
76 views

chemical possibility in oil - 8th graders have questions for a project

I have a team of kids (8th graders) that are doing the First Lego League competition this year. As part of that they have to come up with a possible solution to a problem that relates to the human ...
1
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1answer
889 views

Is sulfuric acid still hazardous after it dries?

One of our housemates decided to pour battery electrolyte (which is 30-40% sulfuric acid) into a motorcycle battery on our back porch next to our laundry washer and dryer. He did so extremely ...
2
votes
2answers
198 views

Spontaneous combustion of sulfur in a steel barrel

Got some free sulfur. Went to the site, and they put a pallet with 3 barrels on it. One of the barrels was badly corroded, but looked like I could get it home. I had plastic barrels at home that I ...
6
votes
2answers
117 views

How can I make a better whiteboard cleaning solution?

I just started work as a lab assistant in a chem lab. The whiteboard the instructor uses for classes gets very dirty very quickly. The woman who started at the same time as I did spent over 3 hours ...
3
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0answers
26 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 ...
5
votes
1answer
92 views

Is there a simple assay to determine the elemental carbon content of biochar?

A little bit of background. I make charcoal for use as biochar: putting carbon into the ground where it retains water and soluble nutrients. It also provides a good habitat for the friendly soil ...
1
vote
0answers
245 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. ...
2
votes
0answers
451 views

Which cup of tea cools down more quickly?

There are 2 cups (both cups are identical) of tea which are served at the same temperature. Assume that the walls of the cup to be non-heat conducting. Which cup of tea cools down faster, a full-...
2
votes
2answers
349 views

Dangers of expired bleach?

I have some unopened Clorox bleach bought over a year ago (at $8.25~\%\ \ce{NaOCl}$) and read on Wikipedia that bleach naturally decomposes according to $$\ce{3 NaOCl (aq) -> NaClO3 (aq) + 2 NaCl(...
3
votes
0answers
28 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 ...
1
vote
1answer
268 views

How do Invert Sugars deter crystallization in Sucrose solutions?

Invert Sugars, by themselves, are notorious for their reputation to crystallize fast (think honey), but their addition to solutions of Sucrose (think simple syrup) deters the crystallization process. ...
2
votes
0answers
155 views

Heat and Sugar Syrup Consistency

I make my own sugar syrups and have been observing how heating the syrup to different degrees results in syrups of radically different consistencies, I wonder why. Heating up syrups (4:3 Sugar:Water) ...
3
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0answers
102 views

What gives saliva its adhesive properties?

The act of sealing off an envelope by licking the flap and "gluing" it down so that the envelope becomes closed rather tightly is probably rare nowadays, but remains well known to many people. I was ...
1
vote
1answer
193 views

House-hold chemistry experiments for a high-school student [closed]

I want to experiment the things which we learn in chemistry as a twelfth grader.I want to do them at my home but I'm not supplied with enough reactants.What can I do by using such reactants. I tried ...
2
votes
1answer
102 views

Can insect repellents kill insects?

One day, there was a fly in my house. I really hate insects flying around me, but I don't want to catch it with my hands, so I sprayed some insect repellent directly onto the fly to try to get rid of ...
1
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1answer
69 views

Cool air on sweat

When my face is full of sweat, I go near the A.C. and when the cool air touches my sweat it feels colder than dry parts? Why does the sweat feel colder than dry parts?
2
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0answers
50 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 ...
0
votes
1answer
532 views

Ethanol discolored yellow when stored with a rubber stopper. Forming fine white precipitate when added to water

I stored some Klean-Strip denatured alcohol in a test tube and capped it with a rubber stopper. I did this in preparation for a chemistry demonstration. When I opened my kit a few days later at the ...
4
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1answer
714 views

Why are regular plastic bags not smell-proof?

Due to the wide use of plastic bags as containers for almost everything in everyday life, I naturally use them to wrap and hold dirty diapers as a temporary stop before getting to throw them in the ...
2
votes
1answer
1k views

Is a 50/50 mix of Acetone and Water inert?

We are cleaning a gel out of a fuel tank that is dissolved by Acetone. We want to neutralize the acetone by adding water to achieve a mix of 50/50 so that (PERHAPS) the acetone will not damage rubber ...
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2answers
2k views

Can cat urine corrode stainless steel?

My cat has a habit of urinating in the bathroom sink. It is unsanitary, but can it corrode the stainless steel plumbing hardware? My friend believes it will, but I disagree. I could believe that if ...
1
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1answer
70 views

Silicone water repellent help [closed]

Is there a chemical or solution that can penetrate silicone water repellents in fabric? Need to break down or penetrate the silicone water repellent in selected areas.
0
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2answers
185 views

Rotten meat odor in plastic

I've been struggling for a few days with the cleaning of a fridge that was left off for a few weeks with raw chiken meat in the freezer compartment. When I found it, the meat had turned liquid with ...
5
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0answers
78 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 ...
3
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0answers
57 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 ...