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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.

3
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0answers
28 views

What's a good way to find out how much lead is in parts being used in toys? [closed]

We are using parts from China in small-scale manufacturing of toys. We used an abotec "lead inspector" test kit on the same part from 3 sources, using abotec's leach test, in which we soaked each ...
-5
votes
1answer
35 views

What structure is this? [closed]

What is the name of this structure? It's close to Leucine but I'm not sure.... Thanks!
4
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0answers
92 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 ...
3
votes
0answers
30 views

Translucifying chemical? [closed]

I was recently shown an object and asked if it was a chestnut. It looked like a regular horse chestnut except instead of an opaque brown surface, the entire nut was slightly translucent, in similarity ...
3
votes
0answers
81 views

Is this model to explain children about oxidation and fire correct? [closed]

I am teaching two young boys (elementary school) some basics about chemistry, but I have to learn as I go myself. Is this a viable model to explain oxidation and fire? When we light up the fireplace,...
-5
votes
1answer
130 views

Identification of an aromatic compound for a quiz [closed]

I need help identifying this structure for a puzzle. Original text was blurry, so a white overlay was added for readability, though some fragments might be different. Any help or suggestions are ...
8
votes
2answers
719 views

How to tell between carbon powder or graphite powder?

I have a black powder that I cannot reliably tell just by looking or touching whether it is graphite powder or charcoal powder. Are there any simple tests that I can perform to tell whether it is one ...
0
votes
1answer
246 views

Will squeezing lemon juice on top of foods with ferrocyanide additive release hydrogen cyanide gas?

For example, will squeezing lemon juice on top of table salt with sodium ferrocyanide ($\ce{Na4[Fe(CN)6]}$) additive (E 535) release hydrogen cyanide gas? Examples of ferrocyanide additives: sodium ...
0
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0answers
49 views

Formulation solubility?

Creatine is a popular sports/fitness supplement, generally sold as a powder to be mixed with water (usually like 5-10g creatine per serving). However, it is not very "soluble" in water -- barely 13.3g/...
5
votes
1answer
176 views

Is there a paper glue that is NOT dissolved by acetone?

Short version of the question: I need a spray-on glue that will stick paper to wood that isn't dissolved by acetone. Long version: I am trying to glue paper on wood. It's a big sheet of paper and I ...
4
votes
0answers
127 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 ...
2
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0answers
60 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 ...
1
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0answers
56 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
vote
1answer
42 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
36 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
vote
0answers
29 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
127 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
135 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
177 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
318 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
921 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
votes
0answers
40 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
181 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
269 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
78 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
2k 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
92 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
55 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
votes
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
votes
1answer
189 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
48 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
94 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 ...
2
votes
1answer
41 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
77 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
vote
1answer
1k 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
228 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
126 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
301 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
476 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
454 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 ...
2
votes
1answer
376 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
164 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
votes
0answers
126 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
201 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
104 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
vote
1answer
70 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?