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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
38 views

Every liquid is water [on hold]

Is it that every liquid we see is water, with more or less of x substance? Example: urine is water with salt and minerals
4
votes
1answer
54 views

What component(s) of instant coffee make it deliquescent?

If I put small, separate piles of instant black coffee powder, sugar, powdered creamer, and even something very ionic like table salt out in humid air and come back in a few days, only the instant ...
-1
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0answers
29 views

What compounds are released from aluminium foil when heated? [on hold]

Looking to find the different compounds that are released from common aluminium foil, and the specific temperatures at which this happens.
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0answers
16 views

What is the cause of effervescence in fizzy drinks? [on hold]

We all have seen bubbles called effervescence in fizzy drinks. How it is caused?
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0answers
23 views

Is Propylene Glycol appropriate to winterize a washing machine?

I have a washing machine, which I store outside the house. It is covered so no rain or snow will get to it, but the temperature will get under zero degrees Celsius in the winter, so if there is water ...
15
votes
3answers
3k views

Is there such a thing as a “minimal soap” molecule?

Wikipedia's Soap gives sodium stearate as an example of soap, and apparently I've been eating it: Sodium stearate is the sodium salt of stearic acid. This white solid is the most common soap. It is ...
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votes
0answers
18 views

Separation of organic monoprotic acid [closed]

0.100 mol of an organic monoprotic acid is partitioned between 50.0cm3 of benzene and 50.0 cm3 of water in a separating funnel. A 10cm3 aliquot of the aqueous layer is pipetted into a conical flask ...
0
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0answers
38 views

Element M reacts with oxygen to form an oxide with the formula MO. When MO is dissolved in water, the resulting solution is basic. Element M could be [closed]

Element M reacts with oxygen to form an oxide with the formula MO. When MO is dissolved in water, the resulting solution is basic. Element M could be A) Silicon B) Magnesium C) Sulfur D) Fluorine E) ...
2
votes
2answers
57 views

nickel-copper fabric: shielding viability after being subjected to weathering

I know the solution can be as simple as a well-sealed garbage can, but I am contemplating making a more malleable fabric based faraday-cage-esque contraption. The plan is to use nickle-copper fabric ...
1
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0answers
12 views

How to align povidone-iodine molecules in order to look for optical polarization?

In this answer I mention how early polarizing filters (e.g. sunglasses) were made by doping a polymer with iodine atoms and then stretching the film to orient the polymer molecules. Electrons donated ...
-2
votes
1answer
42 views

Celsius to Kelvin [closed]

A temperature conversion question asks the following: "The temperature of a sample of a substance changes from 10°C to 20°C. How many Kelvin degrees does the temperature change?" The correct answer ...
0
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0answers
12 views

Bleach neatralising/disposal

One hears so much about the damaging effects of Chlorine bleach on the enviroment... it's however a very cheap solution with which to solve many household cleaning issues... Could a helpful chemist ...
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votes
2answers
48 views

Why does a balloon filled with helium float if there is so much more air on top of it than below it? [closed]

Also what about Newton's third law? Wouldn't buoyancy be flawed because a balloon also displaces the air that is on top of it thus a downward force?
1
vote
1answer
27 views

Diluting topical cream (10%)

I need to dilute a face cream with 10 % active ingredient to 2.5 % and 5 % but I am confused as to how. I looked into the $$c_1V_1=c_2V_2$$ and $$\text{concentration of a solution}=(\text{amount of ...
3
votes
1answer
47 views

Why was lime used by the Nazi's?

I am reading a book (Into That Darkness) about the Nazis, where there is the following passage: causing unimaginable suffering to the deportees who were either left waiting, naked and without food ...
0
votes
0answers
12 views

Alkyd-Urea Aldehyde vs. Oil Modified Alkyd Paint

I was comparing the TDSs for Rustoleum Protective Enamel and 2x Painters Touch spray paints and it listed these two resins (oil for Protective Enamel and urea aldehyde for Painters Touch). I wasn't ...
0
votes
1answer
30 views

Aluminum and aluminum oxide

I have a new grain mill that I am hesitant to use because the rollers are anodized aluminum. As I understand it the anodized aluminum is actually aluminum oxide and supposedly non-toxic. I realize ...
1
vote
1answer
30 views

Function of 'organic' vs regular pipe cleaner

Recently, I needed to buy some pipe cleaner, as sometimes even with care hair and other detritus gets lodged so deep down the shower drain that it is not possible to get it out. I always try to avoid/...
1
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0answers
14 views

Mixing dilute hydrochloric acid and battery acid

I was doing an experiment on gold recovery. When I added some gold platted pins to battery acid nothing seemed to happen.I impatiently added some duluted hydrochloric acid labeled 20%, immediately ...
1
vote
2answers
27 views

Materials used in cooktop heating element, and reason for black appearance

I have been interested in the structure of heating elements/coils used in cooktops. I am referring to something such as in the following picture: I have a cooktop at home with such elements, and at ...
4
votes
1answer
87 views

Is flour or baking soda really suitable for extinguishing grease fires?

I think most have heard the advise that you should put flour (or baking soda) on a grease fire to absorb the oil before. While this is certainly better than using water, I'm skeptical. For starters ...
-1
votes
0answers
22 views

Ions concentration of mixed salts

I’m an amateur in chemistry, so I apologize if this is a too basic question. Background: I want to understand a study of sugarcane growth into solutions containing different nutrients. I’m creating a ...
0
votes
1answer
53 views

What is a “tri-salt polymer” as described by this product that eliminates and prevents mold?

This answer mentions an anti-mold product called Concrobium Mold Control. The FAQ linked on their website says: Q: I see Sodium Carbonate listed on the label. Is Concrobium Mold Control just Sodium ...
2
votes
1answer
49 views

Can superglue (cyanoacrylite) be thinned with acetone and still harden?

I'm looking for something with an extremely low viscosity to use as a binder for cold casting iron oxide with very fine detail (it's to make a slotted winding core for an electric motor with $\pu{1mm}$...
5
votes
2answers
1k views

Why does lavender oil dissolve plastic?

A few weeks ago I decided to harvest the lavender in my garden and put it through a still to extract the essential oils. The still in question is essentially just an air cooled condenser. I collected ...
3
votes
1answer
650 views

Full equation when using vinegar, hydrogen peroxide, and salt to etch copper

What is the full chemical equation when you use the following reactants to etch copper: vinegar / acetic acid (5%) $\ce{CH3COOH (aq)}$ hydrogen peroxide (3%) $\ce{H2O2 (aq)}$ salt $\ce{NaCl (s)}$ ...
0
votes
1answer
48 views

Is sodium “also known to turn purple and combust (like lithium),” when exposed to water?

I understand that indicator solutions can change color depending on pH, but the following statements in the Phys.org article Super cheap earth element to advance new battery tech to the industry has ...
2
votes
1answer
47 views

What chemicals are often confused for different chemicals? [closed]

Recently I asked a similar question on Chinese SE: Why would Antimony (Sb) and Aluminum (Al) be confused? It seems, though, that this is by no means a Chinese phenomenon. The Wiki page for Tin ...
0
votes
1answer
27 views

Compensating for hardness in aqueous NaOH solution?

I'm trying to strip the seasoning (polymerized oil) off a carbon steel skillet. Following online instructions, I've prepared a lye solution, using tap water, 2.5% concentration by weight, which ought ...
1
vote
3answers
114 views

Can 32% hydrochloric acid be stored in a milk jug (HDPE)?

Can $32\%$ ($20$-degree Baume) hydrochloric acid (typically found as 'muriatic acid' in hardware stores) be stored in a milk jug? I have read that acids can be safely stored in polyethylene bottles. ...
1
vote
2answers
37 views

How to purify sodium chloride table salt that contains sodium ferrocyanide

I wish to obtain pure sodium chloride crystals from ordinary table salt. But all proprietary table salts seem to contain the anti-caking agent sodium ferrocyanide which I should like to remove.
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0answers
19 views

Boudouard Equation

I have a doubt: I'm working with the Boudouard Equation (2CO=CO2+C) and I know that the equation is exothermic when Carbon is produced so that it is favored by Low Temperatures. The question is: when ...
5
votes
2answers
100 views

Why is cooking not potentially lethal? [closed]

Even the simplest ingredients used in cooking, such as a banana, contain hundreds of chemical compounds. When we cook we mix several of these ingredients and apply heat, which makes a perfect ...
6
votes
1answer
346 views

Rules of naming ionic compounds

While brushing up on my Chemistry basics, I came across a topic about naming ionic compounds. It is a question regarding Roman numerals. It says "Roman numerals should not be included in the name ...
2
votes
1answer
150 views

Classification of the Inside of a Grapefruit

In the text Chemistry: The Central Science, the inside of a grapefruit is classified as a homogeneous mixture. Unless I’m missing something, to me it would be a heterogenous mixture owing to pulp, ...
0
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1answer
64 views

Is *rinsing* (after washing) with cold water is as efficient as rinsing with hot water?

Let say I have, a dishwashing soap, plenty of cold water (5 °C) and only have 2 L of hot water (60 °C) to clean a t-shirt with oil stains. Should I use the 2 L to wash the t-shirt and then the cold ...
0
votes
1answer
28 views

Effervescent in mineral spirits?

I'm shooting video of paint moving in mineral spirits. To make for a little more action, is there a household granular/solid I could add to the mineral spirits that would gently effervesce ala alka-...
2
votes
1answer
85 views

Why does the liquid in an Oralmedic stick flow uphill after I turn it upside-down?

I was experimenting with an Oralmedic stick, which is basically a cotton swab with a hollow stick that has liquid medicine inside, and observed something very unexpected. I followed the usage ...
36
votes
2answers
4k views

What causes the “rotting fish smell”?

Rotting fish seem to give off the same (very pungent) kind of smell, regardless of the kind (salmon, seabreen, tuna, etc). What exactly is it that's responsible for this unique smell? (Though I've ...
1
vote
0answers
36 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-...
-3
votes
1answer
62 views

Stoicheometry questions: I've been having a bad time not understanding the questions and how the steps are to achieve the answer. please help [closed]

Cetyl palmitate (C32H64O2) is a waxy solid and is the main component of spermaceti, the once prized wax found in the skull of sperm wales. The heads of sperm whales can contain up to 1900 L of ...
2
votes
0answers
109 views

After boiling water in an electric kettle, should I empty it?

(I'm reposting my question from Physics SE where it got closed for being off-topic, but chat tells me that it might be on topic here.) In the office I'm working in, there's an electric kettle for ...
1
vote
0answers
34 views

Disposal of methanol solution [closed]

Can I add a 4 L bottle of methanol solution with 0.1% formic acid into a drum containing non-halogenated waste?
-1
votes
1answer
44 views

Are detergents more efficient if poured into more water?

Let's say, I am washing my cloths "by hand". My steps would be: I take a basin of about 20L I pour into it some water I pour my detergent (the required amount, about a spoon) and a bit of bleach ...
1
vote
0answers
341 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 ...
1
vote
0answers
15 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 ...
0
votes
2answers
45 views

What is the chemical reaction between coins (copper and nickel) and polyvinyl chloride?

I often carry coins in a cheap plastic sandwich bag. A green solid soon appears. Is it copper oxide? How is the polyvinyl chloride greatly accelerating the reaction? Are there other chemicals being ...
0
votes
0answers
26 views

Is there anyway to creat a slab or block of salt?

Is there anyway of bonding salt into a solid block or slab? I haven’t tried yet, the most basic method I can think of would involve makin a saturated slush and compressing as much as possible, I have ...
3
votes
1answer
78 views

Maximum possible hypochlorite concentration from electrolysis?

For reference, "electrochlorination" is just the electrolysis of a simple solution of water and table salt (NaCl) followed by reintroducing the chlorine gas produced. But, the Wikipedia article on "...
0
votes
1answer
21 views

Can activated charcoal be used to filter bacteria out of air? [closed]

As the title says: Can activated charcoal be used to filter bacteria out of air and or gas?