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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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2answers
865 views

Sodium Chlorite vs. Chlorine Dioxide

I ordered Sodium Chlorite in the mail and received Chlorine Dioxide. Can they be used interchangeably, or are they different? My background in chemistry is limited so laymen's terms would be ...
1
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0answers
41 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? ...
1
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0answers
74 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 ...
34
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4answers
8k views

How are poisons discovered? Does someone have to die/be poisoned from it first?

How are poisons discovered? Does someone have to die/be poisoned from it first? Or are there other ways of discovering the harmfulness of a substance? Perhaps everything is tested on other animals ...
4
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1answer
1k views

For what reasons, is isopropyl alcohol widely used as a cleaning solvent?

I have worked in electronics and aeronautics industry 30 years ago, and I have always wondered, what were the specific properties of isopropyl alcohol, which make it used instead of other alcohols ...
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1answer
22 views

Silk Amino Acids and Fruit [closed]

Can I mix silk amino acids, bamboo extracts and keratin extracts with fresh organic fruits for a hair treatment?
5
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1answer
119 views

What happened to this 10 year old unopened plastic bottle?

A colleague of mine found this unopened Aquarius bottle (non-carbonated drink) that was 10 years past its expiration date. The bottle was collapsed inward which would suggest that the pressure in ...
12
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2answers
541 views

Le Chatelier's principle: Are there any exceptions?

The way Le Chatelier's principle is presented in most introductory chemistry books (high-school) is as though it's an indisputable law of the physical world (in the sense that we're never shown an ...
0
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1answer
55 views

Residual catalyst leaching from PETE

I am trying to look for healthy options for 5 gallon water jugs. The problem is all the plastic 5 gallon water jugs on the market are either made of #1 PETE (BPA free) or #7 (which contains BPA). It ...
3
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0answers
111 views

Coffee and argon/nitrogen [closed]

I’ve recently been experimenting blanketing coffee with argon and nitrogen. I’m finding that argon has a more positive result. I can’t find any data or information that would confirm this other then ...
1
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0answers
29 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....
2
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1answer
265 views

Why is nitric acid often used to digest any solid sample?

Why is $\ce{HNO3}$ often used to digest any solid sample? I heard many solid samples often digested with $\ce{HNO3}$ solution because nitrate compound always dissolve in water. Is the concept ...
11
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2answers
2k views

Why do most drugs (eg: oxycodone) have seemingly arbitrary names?

How do some medicines derive their names? For instance, is the name oxycodone somewhat arbitrary? I am not well-versed in Chemistry (1st semester student) but does the prefix oxy- imply some ...
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1answer
522 views

Is it possible to neutralize acids with vinegar (e.g. when experiencing heartburn)?

I would like to know if it is possible to neutralize heartburn with a shot of vinegar, or if one should only use basics (like edible soda). What I know from high school, is that you can neutralize ...
5
votes
2answers
1k views

Does calcium hydroxide react with citric acid in orange juice?

I noticed that calcium-fortified orange juice on the shelf at my local grocery store contains calcium in the form of calcium hydroxide. And I also noticed a couple other ingredients that ordinary ...
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votes
1answer
65 views

Chemistry toilet paper [closed]

This is a stupid question, but I can’t find one of the compounds on this toilet paper: I have in order: Salicylic acid Aceton Caffeine ? Urea
3
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2answers
68 views

How does % purity on household products work?

For example, toilet bowl cleaner is 9.5% HCl. Does this mean that for every 90.5 moles of H2O (or other stuff) there is 9.5 moles of HCl? Does it mean that for every 90.5 g of H2O there are 9.5 g of ...
4
votes
2answers
1k views

Any side effects to using calcium chloride as a desiccant?

Based on cost, availability, and moisture absorption capacity, calcium chloride seems to be too good to be true. Are there any side effects to using calcium chloride as a desiccant? I'm interested in ...
5
votes
1answer
338 views

Chemistry of toilet bowl mineral stains on porcelain

I live in Massachusetts, my house has 3 bathrooms and I live alone. If I don't scrub my toilet bowls once a week they build up brownish-yellow mineral stains. These seem independent of whether I've ...
2
votes
1answer
499 views

Why dont we use potassium hypochlorite for bleach

I have been reading wikipedia and according to the article on potassium hypochlorite it can be used as a disinfectant. But it is not listed anywhere in the bleach article. I know we typically use ...
4
votes
0answers
42 views

Why does the CO2 gas quantity in Sodastream cartridges differ in different nations? [closed]

Just was looking at the $\ce{CO2}$ cartridge for the Sodastream soda / seltzer maker I was planning on buying and this bit of info caught my eye: Any idea why they may want to pack $\pu{25 g}$ less $\...
2
votes
1answer
303 views

Home test for magnesium carbonate

People that do rock climbing and weightlifting usually use magnesium carbonate on their hands to decrease slippery hands. I would like to know how can someone that buys MgCO3 can really be sure it's ...
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votes
1answer
40 views

Chemical reaction to produce 5 liter of gas [closed]

I'm looking for a chemical reaction in order produce about 5 liter of harmless gas. The goal is to start with something that takes as little volume as possible to start with, and reacts to fill up a ...
4
votes
2answers
7k views

Is dissolving salt a chemical reaction or a physical change?

Physical changes are limited to changes that result in a difference in display without changing the composition. (source) e.g. melting water or dissolving sugar in water Chemical reactions are ...
4
votes
2answers
535 views

Melting ice with salt - how does it start?

I know that salt reduces the melting point of ice. I can see how a little bit of salty water can melt ice to water which can dissolve even more salt. But how does it even start? There is ice, which is ...
1
vote
1answer
5k views

How to remove formaldehyde (smell) from clothes/jeans?

Bought several jeans, then to discover they have a really nauseating smell, that is not removed by washing. Reckon it's formaldehyde, from what I can read. Anyway, assuming you have jeans with ...
2
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1answer
46 views

Marker dissipates on White board paint [duplicate]

What causes white board markers to dissipate when writing on dry erase painted surfaces. It almost immediately start to pull together and seems as if it disappears
0
votes
0answers
69 views

Modifying the chemical composition of sea water

I prepared 1 liter of artificial sea water by mixing 1 liter of pure water and 35 grams of "Instant Ocean" salt (recipe attached below). According to the recipe, Magnesium (Mg) = 1320 ppm and Calcium (...
4
votes
0answers
910 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. ...
7
votes
1answer
2k views

The coldest (the most endothermic) reaction [closed]

What chemicals can you mix that causes the coldest (the most endothermic) reaction?
2
votes
1answer
150 views

Rust removal ended with black oxide on the metal?

I have tried to remove common red iron rust from a small piece of metal that looks like steel. I submerged it into hot water with a bit of citric acid, and let it sit overnight. In the morning I ...
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votes
0answers
53 views

Plastic contaminant in the kitchen (from a heated PP bag) - toxicity, cleaning up

In short, a pot of hot soup traveled in a PP bag and landed onto the kitchen table with a vivid unpleasant smell of plastic contamination. Based on the specifics provided below, I seek to identify ...
0
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0answers
213 views

Do mixtures have a boiling point?

Let's assume a mixture which can be heated without decomposing. This site explains that while pure substances have a sharply defined melting point and boiling point, mixtures tend to have a melting ...
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0answers
89 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, ...
3
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0answers
62 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 ...
9
votes
1answer
199 views

Why does hot oil fry things, but hot water does not?

When a slice of potato is dropped into hot oil, it gets fried but the same in hot water, gets ‘cooked’. What is it about oil that gives the slice of potato the crispy feature while water only makes it ...
3
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0answers
43 views

Continuous series of inorganic hydrates (from mono- to deca-)

I'm doing some research for university and it has to do with crystals. I'm currently experimenting with $\ce{CuSO4 * 5 H2O}$. I know we refer to the formula as copper sulfate pentahydrate. And also, I'...
5
votes
1answer
89 views

How much yeast is necessary to produce the same amount of carbon dioxide that I exhale?

I think I might have bed bugs. I read that bed bugs are attracted to $\ce{CO2}$ and heat, I also know that yeast produces $\ce{CO2}$ as a waste product. Knowing that, I did some research and found ...
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 ...
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1answer
33 views

What structure is this? [closed]

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

Do the Noble gases really have their outermost shell filled? [duplicate]

If you google "noble gases", you will run into the same definition from most sources. That being: noble gases are inert because their outermost electron shell is full. That does not seem to be true, ...
4
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0answers
85 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,...
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1answer
123 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 ...
7
votes
2answers
634 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
197 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
45 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
164 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
106 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 ...