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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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7 votes
2 answers
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Why don't oils use plastic droppers?

As shown in the picture, most cosmetic oils and serums make use of glass droppers. However in the chemistry lab, scientists often also use reusable plastic droppers as well. My question was that, ...
Ronith's user avatar
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0 votes
0 answers
65 views

How can I make sure my oil do not contain salt

Vacuuming slightly wet wood with my vacuum pump resulted in making a mayonnaise with my pump oil - which turned out surprisingly stable. I mixed salt saturated water with it in order to break the ...
Camion's user avatar
  • 187
-1 votes
1 answer
22 views

what off the shelf chemicals break the factory adhesive bonding paper gaskets to a steel plate in an automatic transmission? [closed]

The adhesive chemical is unknown. This part is constantly exposed to temperatures from -20F to 300F, and is submerged is transmission fluid. The exact steel that the gaskets are bonded to is unkown, ...
MIKE's user avatar
  • 11
4 votes
2 answers
568 views

I left scented candles in a polypropylene container. How do I remove the smell?

I left scented candles in a polypropylene container, for many weeks. How do I remove the smell? I've tried: Hand wash with Dish Soap (a few times) Hand wipe with Isopropyl Alcohol (a few times) ...
JJ123's user avatar
  • 73
3 votes
3 answers
1k views

Could an airborne swarm of small insects explode? [closed]

I know that fine-grained organic matter such as flour or pollen can be quite explosive if ignited. It also seems logical to me that the explosiveness of such an organic powder is determined by many ...
paulina's user avatar
  • 159
3 votes
1 answer
78 views

Is there not a strict definition of what naphtha vs petrol represent?

If you search for information about fractional distillation of petroleum, many sources place petrol above naphtha, while others do the reverse. Is there not a strict definition of what these compounds ...
Martín Montoto Fernández's user avatar
3 votes
6 answers
353 views

Removing carbon matter from molten beeswax

In my candle manufacturing process, I melt down used candle stubs, filter the molten wax (heated to ~ $\pu{75^\circ C}$) and use this to create new candles (in addition to fresh beeswax). I'm ...
Peter's user avatar
  • 47
0 votes
1 answer
59 views

About whitish layer that formed on chocolate bar

I noticed a whitish layer on the surface of a chocolate bar that I ate yesterday. I looked at the pack where it was mentioned that, "Temperature and humidity changes may cause product to develop ...
Anjankumar's user avatar
1 vote
2 answers
100 views

How did Sinclair Oil put "liquid nickel" into gasoline, and what were the chemical mechanism(s) by which it was supposed to reduce engine wear?

The April 22, 2022 Veritasium video The Man Who Accidentally Killed The Most People In History is worth a watch, and was the basis for the question Why would tellurium + sodium hydroxide have worked ...
uhoh's user avatar
  • 5,812
3 votes
1 answer
757 views

Why doesn't sodium bicarbonate dissolved in water spontaneously effervesce when carbonic acid does?

It's well known that if you put carbonic acid $\ce{H2CO3}$ into water it will dehydrate into carbon dioxide $\ce{CO2}$ and water $\ce{H2O}$. Indeed this is how modern fizzy drinks generate their fizz. ...
Hadi Khan's user avatar
  • 307
2 votes
3 answers
66 views

Oxygen bleach discolored white tablecloth

My white polyester tablecloth got stained with red wine. Stains were about the size of a quarter.I proceeded to launder it several hours later. I used Chlorx2 ColorSafe Bleach and as per ...
Amy C's user avatar
  • 31
2 votes
1 answer
133 views

Purpose of sulphuric acid in archaic matchboxes

The first attempts at instantaneous matchboxes usually included some sort of oxidizer, usually potassium chlorate and an initiating fuel (first sugar was used then they moved on to $\ce{Sb2S3}$ etc.) ...
Gaurav Sai Maddipati's user avatar
2 votes
1 answer
100 views

Developing aluminum mirrors, similar to tollens reagent but with Al instead of Ag

Is there a chemical process to deposit an aluminum mirror onto a surface similar to the tollens reagent process for silver? I should add that any liquid process would satisfy my curiosity, it does not ...
David Dawkins's user avatar
0 votes
0 answers
47 views

Making Sodium Citrate

I've been trying to make Sodium Citrate and I've seen online people saying just react sodium bicarbonate with citric acid in water (with correct ratios) and boil off/remove water once the reaction has ...
James Hamp's user avatar
2 votes
2 answers
127 views

What liquid mixture has largest negative excess volume?

Math teacher here. I’m trying to teach about types of sets that when you add them together, their sizes don’t add (called non-measurable sets). I came across the chemistry experiment where you mix 50 ...
Prof. Strangeloop's user avatar
0 votes
0 answers
37 views

How to remove color from bromostyrene/dibromostyrene

Distillation under low heat can remove color (excess bromine) but this is time consuming and there is a danger of bromostyrene polymerization even with added TBC. In aqueous, sodium thiosulphate can ...
Don Volk's user avatar
2 votes
1 answer
146 views

Mechanism of adhesion of particles on solid surfaces [closed]

What is the mechanism of adhesion of particles on solid surfaces? How does anything stick to anything, for that matter? Why does cigarette smoke stay so stubbornly on our bodies? Why does perfume also ...
damacc's user avatar
  • 37
2 votes
2 answers
124 views

Point group of trimethyl borate $\ce{B(OCH_3)3}$

What's the point group of trimethyl borate $\ce{B(OCH_3)3}$. The answer that my teacher gave is $D_{3h}$ but I'm struggling to see the n perpendicular $C_2$ axes and the horizontal plane of reflection....
Joe's user avatar
  • 21
-2 votes
1 answer
128 views

What are these plates in LixC6?

I'm completely new to chemistry. I can’t personally figure out the basic issues myself, so I’m asking for your help. I became interested in how lithium-ion batteries generally work. As a result, I ...
Fedor Pasynkov's user avatar
-1 votes
1 answer
92 views

What chemical makes the ‘smoky’ flavour in smoked paprika?

I really detest ‘smoky’ flavours eg smoked paprika. It tastes like fumes to me. What chemical/ substance do these contain that causes this please
Jane's user avatar
  • 7
-3 votes
2 answers
84 views

Sodium hypochlorite bleach and chromium mop handle [closed]

I have been using sodium hypochlorite bleach as a cleaning method in my house. During a two week period when I was at home I left the mop handle in the bucket with bleach in it. I did not know it was ...
Kain's user avatar
  • 9
-2 votes
1 answer
61 views

Is a realistic chemistry system viable for video game design (restrictions apply)? [closed]

I assume this might be an unusual question, and I'd like to first make a note as to why I'm asking here, on Chemistry Stack Exchange and not somewhere more relevant to video games. This is because we'...
Eso Dev's user avatar
-2 votes
1 answer
122 views

Non-toxic alternative to borax for use in slime chemistry?

I understand that sodium tetraborate decahydrate ($\ce{Na2B4O7•10H2O}$) and water is the primary binder for PVA glue based slimes. We have learned borax is not good for the ground water, or marine ...
Shannon Strong's user avatar
-5 votes
1 answer
40 views

How's the formula mass of a molecule calculated? Is it the mass in it's empricial formula or molecular formula? [closed]

Like glucose, butane and benzene. How would you calculate their formula mass? Would you calculate it as the mass of their empricial formula or their molecular formula (basically same as molecular mass)...
Chemistry Boi's user avatar
1 vote
0 answers
132 views

How to clean naphtha of non-saponifiable fats

My dad has been using naphtha to degrease some animal bones, which based on the MSDS is probably some random jumble of hydrocarbons, mostly heptanes. He's trying to be environmentally friendly so he ...
ProfWalrus's user avatar
-1 votes
1 answer
71 views

What is that substance coming from tractor tire?

I have old tractor with Bridgestone tires. When I press a clean white tissue against the tire, a black spot show on the tissue. Is that substance carbon black and it’s harmful to soil?
MasterMind's user avatar
-2 votes
1 answer
270 views

Integration of Artificial Intelligence in Chemistry [closed]

How is Artificial Intelligence impacting the design and discovery of new compounds and medications? Given the rapid advancements in artificial intelligence and machine learning methodologies over the ...
user avatar
0 votes
0 answers
1k views

Chemistry behind cleaning with vinegar vs citric acid; do they work differently? Should I prepare the same pH solutions to compare them?

I noticed a pack of "Mysterious Citric Acid" while out shopping so I picked it up to see what the big deal was. Several palates of the stuff had just arrived at a local outlet store. I ...
uhoh's user avatar
  • 5,812
0 votes
0 answers
29 views

How does the heat-activated blowing agent in foaming plastic filament survive the manufacturing process?

Special 3D printer filaments are available with blowing agents mixed in. These blowing agents cause the filament to foam as it is extruded, causing the resulting structure to have a much lower density....
Kenn Sebesta's user avatar
-2 votes
1 answer
87 views

Creating Chloramines

I'm currently conducting some testing related to indoor pool environments. Here I believe, airborne chloramines are responsible for stress corrosion cracking in austenitic stainless steels. ...
Kuhrta's user avatar
  • 65
0 votes
1 answer
280 views

Why does brandy have a higher methanol-to-ethanol ratio than beer, despite the distillation?

From my googling, beer tends to contain around 16mg/L of methanol. While for brandy, typical methanol content is around 1000mg/L (give or take a factor of 3, depending) The distillation that brandy ...
MWB's user avatar
  • 519
-2 votes
3 answers
257 views

Which part of a soap molecule is the hydrophilic part? [closed]

Is the hydrophilic part of the soap both the cation ($\ce{Na+/K+}$), just the $\ce{COO-}$, or both of those sections together like the picture shown below? Do the cation and the anion dissociate from ...
cabbagesss's user avatar
2 votes
0 answers
65 views

Is it possible to electroplate iron onto nickel in a sodium chloride solution?

Over the years I have salvaged many laptop and power tool batteries and collected a lot of metal strips, but I don't know if they are made of nickel or nickel-plated steel. I have a piece that I know ...
Karabin's user avatar
  • 21
-4 votes
1 answer
116 views

Question about percentage purity and percentage yield [closed]

While doing questions on percentage yield, this one took my attention As a result of the reaction of 20 grams of hematite with a purity of 60% with a sufficient amount of pure aluminum, how much ...
Shadow sparkle 's user avatar
-1 votes
1 answer
112 views

Is a Sodium Chlorite Product Safe for Car Odor-Removal? [closed]

I would like to ask the science community's opinion about the safety of sodium chlorite for use as an odor-eliminator in an automobile's interior. While the ingredient in the product is sodium ...
Jeff's user avatar
  • 1
-5 votes
1 answer
90 views

betamechaptoethanol smell [closed]

I am doing my masters in science and today one of our neighbors from the other lab came to heat his samples on a heating pad. the samples were in small tubes which contained Betamechaptoethanol, when ...
HHSS's user avatar
  • 1
4 votes
6 answers
2k views

Does an ionic bond have a dipole?

Is an ionic compound like NaCl considered a dipole? It has a positive side (Na+) and a negative side (Cl-). Or is it true that an ionic bond does not have a dipole because a dipole is, by definition, ...
Chemistry Boi's user avatar
6 votes
1 answer
143 views

Why Does Milk Seal Sidewalk Chalk?

I work at a public library and we recently had a sidewalk chalk hour for families. Someone gave us a tip that if we brush milk with a paintbrush over the finished chalk drawings, it helps seal them ...
Rachel's user avatar
  • 61
-5 votes
1 answer
179 views

Can H2CO3 and NaHCO3 be in the same solution at the same time?

In my opinion they can't. Because the product of reaction will have $\ce{H2CO3}$, and end up with $\ce{H2O}$ and $\ce{CO2(g)}$. And gas can not be part of a solution. $$\ce{H2CO3 +2NaHCO3 -> Na2CO3 ...
Usama Khedr's user avatar
4 votes
2 answers
455 views

Why does color of substances not disappear after some time?

Some compounds are colored due to HOMO-LUMO transition. We see the complimentary color to the frequency which the electron absorbs to get the high molecular orbital. But after some the electron should ...
Garv Chaudha's user avatar
-3 votes
1 answer
223 views

If Qc> Kc how can forward reaction can take place

If Qc>Kc then there will be a net backward reaction but still forward reaction will take place. My problem is if Qc>Kc forward reaction will become non spontaneous right. So how can that happen, ...
Zayden's user avatar
  • 13
-3 votes
1 answer
124 views

What if kc=1 will reactants concentration equals to product concentration [closed]

I read a book, it says if kc=1 it mean reactant concentration equals to product concentration at equilibrium. But I'm wondering that in kc expression we dont just use concentration of an element we ...
Zayden's user avatar
  • 13
-2 votes
1 answer
279 views

Small amount of sulfuric acid down drain - questions [closed]

Bought some drain cleaner from my local hardware store, the guy at the counter said its powerful stuff that barbers use to clear hair from drains. Said to not put my head above the drain while using ...
sadhunk's user avatar
1 vote
1 answer
150 views

Is breaking something an irreversible change? [closed]

The science textbooks say that, unlike change of state, not all physical changes are reversible. For this, the example provided is grinding wood into sawdust or tearing off paper. They say that we ...
G23's user avatar
  • 21
0 votes
0 answers
106 views

For radical polymerization reactions, azobis(isobutyronitrile) (AIBN) can also be used as a radical initiator

Draw the mechanism of radical formation if you know that N2 is formed as a by-product. The solution they give us is I know what radical polymerization is. The free electron of a molecule binds with ...
wengen's user avatar
  • 385
3 votes
1 answer
125 views

Why did it take so long to figure out what made Roman concrete so durable?

I'm no chemist, but it feels like there should have been more than enough motivation to discover the recipe for strong concrete and it should have been discovered ages ago. Why were the details only ...
David Hobs's user avatar
1 vote
1 answer
82 views

What household objects are made of metals with a high degree of purity?

I've looked into this briefly and from what I've understood, the kind of copper that's used to make electric copper wire is generally of a high purity (well above 99%). What are some other household ...
SpotXSpot's user avatar
  • 113
3 votes
0 answers
80 views

Ethylene Glycol in Wall Primer [closed]

No scientific background here! Due to a chemical sensitivity, and general concern for healthier indoor air quality in a home I am renovating, I opted to choose "greener" alternatives in ...
Violetta Sur's user avatar
2 votes
0 answers
86 views

Is cleaning silverware with tinfoil and salt dangerous?

Premise: I'm not a chemist and I've already had a look at this and this but they don't fully answer my question. I have read that you can clean silverware using tinfoil, salt and water, though from ...
user avatar
2 votes
0 answers
28 views

How are gravimetric analyses of particulate matter performed, in order to determine particulate matter concentration in air?

I've been surfing Google Scholar a bit and learned that a common and comparatively less expensive method of measuring particulate matter concentration in air was analysis through gravimetric methods. ...
shintuku's user avatar
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