Questions tagged [cleaning]

For questions about cleaning agents and methods used to remove dirt, stains, residues, and bad smells, including proper waste disposal. For particular questions about surfactants, use the [surfactants] tag.

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2
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1answer
98 views

Why do cookies prevent toothpaste from foaming?

If I eat cookies and subsequently brush my teeth such that there is still small amounts of cookie material stuck to my teeth, the toothpaste will not foam as well as usually, making the process less ...
22
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1answer
2k views

How can I safely handle a concentrated (fuming) nitric acid spill?

I will shortly be using $90~\%$ or higher concentration nitric acid in a home environment for the purpose of decapping ICs. I understand the corrosive dangers of nitric acid, and most of the important ...
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3answers
18k views

Why hot water is more effective than cold water in cleaning

Today while washing curtains, my mother dipped them in hot water(containing detergent) for an hour and then washed them.When i asked her that why she done that,her answer was simple(it will make the ...
-1
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2answers
438 views

What happens to potassium bitartrate (cream of tartar) at temperatures exceeding 1000°F?

What happens to potassium bitartrate (cream of tartar) at temperatures in excess of $\pu{1000\!^\circ F}$? For example, if it is placed on an oven bottom and then run through a self clean cycle.
3
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1answer
238 views

Solvents for tartrates / tannins that won't attack glass

At the bottom of my wine decanter (which due to its shape is fantastically hard to clean mechanically) a layer of reddish brown precipitate forms. I believe this is probably potassium bitartrate ...
3
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1answer
5k views

Isopropyl alcohol to clean Nylon plastic

I have a hardwood wooden frame, possibly lacquered, containing some very dirty nylon plastic pieces, a bit like the teeth of a comb, where the frame goes along top and bottom. I know it's nylon ...
2
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1answer
123 views

How can I clean up from electrolysis?

So, I was doing a little experimental electrolysis in my basement. I used 2 (presumably) galvanized steel screws as my electrodes and ran 5A through tap water with a lot of NaCl dissolved in it (to ...
1
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0answers
921 views

Crusty white armpit stain that can't be removed by washing

Some of my t-shirts (the ones that are 100% cotton) started developing this strange armpit stain: it makes the fabric feel brittle and crusty around it; it can't be washed off with water and ...
0
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1answer
196 views

How does Drain opener decompose?

I used drain opener (sodium hydroxide and sodium hypochlorite) in an RV and accidentally caused it to drain out (mixed about 1:10 with water) onto concrete below. There is a fairly strong smell. ...
2
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0answers
765 views

What would be a safe/good surfactant for ultrasonic cleaning vinyl records + distilled water and isopropyl alcohol

Title pretty much says it all besides the type of records I believe are pvc (60s - current, someone correct me if there may be other materials but I absolutely don't have any shellac records) and I ...
14
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1answer
4k views

Would the mixture of vinegar and baking soda make a cleaning agent?

I've seen it suggested countless times that combining vinegar and baking soda is a great home cleaning solution, but this always seemed like nonsense to me. I recognize that baking soda, a base, can ...
4
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1answer
270 views

What are these stains on my stainless steel pans?

I've had enough of the homemaker advice of baking soda or barkeeper's friend products - their advice isn't working. I need a chemist! Please see the two photos below. This pan isn't quite as clean ...
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0answers
192 views

Is there a chemical that will etch antimony but not stainless steel?

I am working with ultra high vacuum equipment made out of stainless steel that has been contaminated with a number of metals, but in particular Antimony. We'd like to do some machining of the ...
-1
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1answer
5k views

What could happen when mixing bleach with other cleaning residue?

I have a wall covered in mold. I have used various cleaning wipes attempting to clean it, including a vinegar mixture. I now want to spray the wall with a bleach cleaner. I am concerned for fumes from ...
3
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1answer
623 views

Will washing child seat belt straps with baking soda and hydrogen peroxide make them unsafe to use?

My friend is afraid to use the child seat for her next child. She was told washing them with the solution weakened the fabric, The straps weren't submerged, but they did get throughly wet.
2
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1answer
388 views

Autoclaving certain plastics?

My professor is letting me use the autoclave in the future, but I am a novice. I asked him what materials were safe to autoclave for my notes, materials meaning glass or plastic-ware. He stated, "It ...
1
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1answer
1k views

How to dissolve the build-up from a paraffin based oil?

I have a CNC lathes that use "oil" for cutting fluid during the machining of mostly metal materials. Typically a heavy paraffinic based cutting oil (petroleum distillate) is used during machining. ...
0
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1answer
1k views

How to determine the products of a redox reaction

I'm doing a paper on water treatment methods, and in one section, I'm describing how a nearby water treatment plant is removing Trichloroethylene ($\ce{C2HCl3}$) from water by oxidizing it using Ozone ...
3
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3answers
3k views

Can baking soda or citric acid help clean a pot with burned-in milk rice?

The other day I was cooking milk rice and forgot about it so it burned a little on the bottom. This lower layer was very hard to clean. A lot of websites recommend boiling water in the pot with baking ...
1
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1answer
2k views

Isopropyl alcohol to clean germs on countertops

My wife recently found some website recommending mixing 91% isopropyl alcohol, white vinegar, water, and corn starch and using it to wipe down countertops. This would be where we put our raw chicken ...
2
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2answers
1k views

Dichloromethane cleaning

Is it safe to drink out of a bottle that use to contain Dichloromethane? What should I use to clean a bottle of Dichloromethane? Is there any chemicals that I could use to dissolve the ...
5
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4answers
35k views

Sulfuric acid fumes from cleaning shower drain

This morning a workman came by to my newly rented property to fix a few things, among which a slightly blocked bathtub drain. He let some mild water run continuously and he poured down a chemical, ...
3
votes
1answer
406 views

Urea-Formaldehyde cleanup

I work a lot with Urea-Formaldehyde resin/plastic, both in carpentry and textiles. Cleanup while still uncured is simple enough. Cleanup before even mixed is easy enough. What I don't know, is how to ...
3
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1answer
15k views

Yellow stains after cleaning silver

I've recently moved to a old house and found some stuff in the attic, along that I found some really beautiful silverware(??) that unfortunately was VERY tarnished, one of the pieces was totally black ...
3
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1answer
2k views

Cleaning stains with hydrogen peroxide and bleach

A while back, I discovered that if you have a stain on a white shirt, you can remove it by putting hydrogen peroxide on the stain, then adding some bleach to it. I have used this for getting out wine,...
2
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1answer
28k views

How to reverse damage done by nail polish remover without acetone to a laptop keyboard?

Today I was trying to clean my laptop with a nail polish remover (ingredients: ethyl acetate, peg-40, hydrogenated castor oil, panthenol, parfum, d-limonene, geraniol, ci 26100, ci 60725). Not only it ...
18
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1answer
3k views

How many times can we recycle one sheet of paper?

Its really interesting to see the process of recycling of paper (as shown in picture below) but at the same time I was thinking like for how many times can one sheet of paper can be recycled ?
4
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1answer
195 views

How to clean glassware containing pesticide solutions

I have pesticide (dimethoate) dissolved in methanol in volumetric flasks and graduated cylinders. How do I clean this glassware properly before moving on to the next dilution of a different pesticide.
2
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1answer
187 views

Water in the ultrasonication bath

Why something jelly forms in the water if it is kept in in a ultrasonication bath for long periods? When water is exposed to ultrasonication for say a month, some jelly substances form in the ...
2
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0answers
781 views

Why does the black powder that comes off aluminum pans behave the way it does?

When I wet an aluminum pot or cookie sheet and then dry it with a towel, it creates dark gray marks on the towel. This happens more if the aluminum is a little rough. It seems that there's a fine ...
2
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1answer
121 views

Is triclosan harmful?

I keep hearing about this product known as triclosan, and that it is used in sanitizing soap. And I also heard that it is harmful, and causes some sort of muscle problems. However some people aren't ...
6
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1answer
137 views

Definitive Guide To Removing Stains From Baby Clothes

I'd like someone to explain, scientifically, what makes some baby clothes' stains so hard to remove, and what the right way to treat the stains is, chemistry-wise. A lot of internet sites have ...
8
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3answers
7k views

What are the best chemical liquids to clean metallic surfaces?

I'm just a simple man curious about things. I've no big understanding of chemistry. I had this question today in mind. What chemicals could I use to achieve the cleanest metallic surface? For example,...
1
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1answer
55 views

Eco Friendly Cleaning Solution [closed]

I would like to find a solution that can kill roof algae, fungus, mold, mildew effectively without using environmentally unfriendly products but don't know enough about chemistry to make a solution ...
1
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1answer
858 views

How to remove epoxy on clothes?

How to remove epoxy on clothes in the perspective of chemistry? More precisely in my case, how to remove the hardener of epoxy, which consists of two components: hardener and resin. The clothes is ...
2
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0answers
223 views

How paper-tag survive in the dry-cleaning process?

This prevent the clothes from being ruined by ink on the paper tag. To put the garments attached with this paper through the whole process of dry-cleaning, I have the questions listed below paper ...
4
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2answers
3k views

Reuse 20 litre plastic drums for drinking water?

Would you consider it safe to clean and reuse a 20 litre plastic drum that contained 36% Hydrochloric Acid for drinking water? If so how would you recommend cleaning it?
3
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1answer
161 views

Why isn't washing up liquid dry

Washing up liquid is wet and it is added to water. Why does it not come in a half size package and you add the water yourself? In the same way washing powder is?
6
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1answer
59k views

Chemicals to clean natural stones

I picked up some stones from a hiking trip. What can I use to thoroughly clean the mud and other hard deposits on the surface of the stones? I have only washed them with plain water.
5
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1answer
271 views

Simple and cheap anti-graffiti layer based non-paint solvent

I have this issue with a group of people intentionally damaging a bench. So far, they would paint curses over the bench with permanent marker. However after I removed the curses with ethanol, they ...
9
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3answers
2k views

How do we get rid of dangerous explosive acetone peroxide and nitroglycerine?

Imagine the police (or army or whoever's job is that) found out that some maniac placed a lot of primary explosives under a building. They have evacuated the building and deactivated the trigger. ...
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3answers
5k views

How can I clean solid sulfur and its oxides from test tube?

I was experimenting with sulfur few years ago. The test tube I used for that purpose has still sulfur stuck onto it. I was searching for a way to dissolve it. I found an idea to try warm acetone. ...
10
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1answer
3k views

Soap and rain water, why does it not rinse off?

I am in Papua New Guinea at the moment, where rain water harvesting is the most common way of getting water. When washing hands, the soap feels hard to rinse off, and my skin feels "greasy". I read ...
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3answers
784 views

Best way to clean a gold-plated yoyo bearing?

I have a gold-plated yoyo bearing which needs cleaning. Most people clean regular non-gold-plated bearings with mineral spirits (naphtha), lighter fluid (hexane/heptane), and acetone, but these gold ...
2
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1answer
2k views

What is formed when hydrogen peroxide reacts with titanium?

I just got night contact lenses, and you are supposed to use a "one-step" cleaning solution to clean it over a period of six hours. At the bottom of the lenses case, there is a "titanium plate ...
0
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2answers
1k views

How do I clean a silk tie at the knot?

I would like to know how I can clean a silk tie at the knot. I presume it got filthy, over time, due to "fatty" fingers. I am looking for answers either based on 1) good theory or 2) personal ...
6
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3answers
1k views

How to achieve clean dishes and glasses?

I heard that there is a standard about cleaned glass, namely Chemically clean glass supports a uniform film of water, with no hanging droplets visible. I tried to clean my dishes at home using ...
7
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4answers
6k views

Distilled water to clean greasy stains: Why does that work?

I noticed that distilled water works well to clean away fingerprints on touchscreens or oil stains on a ceramic field after frying an egg. But water and oil/fat are not supposed to mix, so why does ...
3
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1answer
3k views

Is hydrogen peroxide safe for cleaning porcelain?

From my understanding hydrogen peroxide only reacts with bacteria in a way that it should burn them more or less. If that is true, can I then safely use hydrogen peroxide to clean my bathroom sink ...
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2answers
6k views

Cheap and not messy solvent for motor oil

I have an old oil cooler of an old Volkswagen engine (the type where the oil itself is cooled, and uses no water) stained with decades of usage. If I pass water through it, it comes out clear, but if ...