Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

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 [tag:surfactants].

-2
votes
0answers
12 views

What material is my pot and what is coating it please?

I have a large beaten metal pot I inherited from my parents. It was kept outside and entirely tarnished black, except for places in the inside which had a gold appearance (it's obviously not a gold ...
0
votes
0answers
13 views

Computational method to model the interactions between a liquid, a solid surface and particles on it?

I’m looking for a way to model the interactions between a liquid, a surface and various particles over the surface, in order to simulate the cleaning of said surface with different substances. My ...
0
votes
1answer
17 views

Suitable safe cleaning solution for aliphatic urethane

I am looking for a suitable cleaning solution for a sprayed on coating that is an acrylic aliphatic urethane. My end goal would ideally be something that can neutralize rust, whiten and brighten the ...
3
votes
1answer
69 views

Which component in my tap water “scale” does not react with acid?

Where I live we have pretty hard tap water and so I'm used to scale build-up in kettles and on bathroom tiles, easily removed with acids (it's mostly calcium carbonate I guess). However it seems a ...
-1
votes
0answers
12 views

What can be done to the residuals from an electrolytic solution or more precisely how to make the solution reusable again?

In any electrolytic reaction anode goes for oxidation and cathode goes for reduction. The aftermath of this natural behaviour of the solution leads to an unclean(mother) solution which has to be ...
2
votes
3answers
65 views

Aluminium foil on windows: what is the residue, and how to remove it?

I put aluminium foil on some windows' glass pane wetted with plain tap water, as a typical trick to stop sunlight. After 5 days, I removed the foil to find some kind of whitish pattern on the glass. ...
1
vote
1answer
34 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/...
0
votes
1answer
69 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 ...
5
votes
1answer
122 views

How to safely clean tantalum jewelry

I have some tantalum jewelry that I would like to clean. I've tried just soap and water to no success, so I wanted to try one of the standard at-home cleaning methods, like this one that uses foil, ...
-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
1answer
75 views

Safely lowering bleach pH without chlorine gas?

According to Eurekalert, by lowering the pH of household bleach (e.g., by adding vinegar or citric acid), we can increase $\text{[HOCl]}$ and consequently greatly improve the disinfecting capabilites ...
2
votes
1answer
43 views

What are the best cleaning agents for carbon residues on glassware?

Introduction Recenly I wanted to isolate some ascorbic acid (Vitamin C or chemically - $\ce{C6H8O6}$). I've put the filtered solution (I had to filter it because of the binder) in a flask and heated ...
2
votes
1answer
561 views

Why is caustic soda (NaOH) used to clean beer bottles?

I see in many blogs in the internet that cleaning bottles with $\ce{NaOH}$ is very effective. I also realize that industries use caustic soda to clean bottles. Why is caustic soda very effective at ...
4
votes
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 ...
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
votes
1answer
115 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 ...
2
votes
1answer
41 views

Washing stainless steel separator from organic residue

In my lab we have a stainless steel separator for liquid products of one of our hi-pressure catalytic testing assembly. It is a steel cylinder with two short pipes and one another short pipe with a ...
2
votes
1answer
173 views

What is the correct way to clean spectrophotometry cuvettes?

The lab I started working in has a spectrophotometer with cuvettes. The cuvettes need to be inspected and cleaned regularly. The senior people in the lab are in disagreement as to the correct ...
6
votes
2answers
115 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 ...
2
votes
2answers
305 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(...
1
vote
1answer
218 views

When we add soap in low concentrations to water it reduces the surface tension. Why? What is the purpose of this?

I understand how soaps lower the surface tension of water but I don't know what the purpose of this is. How does this help with cleaning, removing stains etc?
2
votes
0answers
355 views

Ammonia for cleaning - what is the interaction between ammonia and oils?

Household ammonia is recognized as being an excellent cleaner for grease and oil. My question is, how does this work? Does ammonia merely put the oils into a suspension, like a detergent does? Or is ...
1
vote
1answer
72 views

What is the grey film/black sludge from mercury? How to remove it?

How to remove it? Any other simple method apart from distillation. I have a small container of mercury that I’ve collected over the past decade. I opened the container after a few years now and I ...
0
votes
2answers
156 views

Rotten meat odor in plastic

I've been struggling for a few days with the cleaning of a fridge that was left off for a few weeks with raw chiken meat in the freezer compartment. When I found it, the meat had turned liquid with ...
2
votes
0answers
102 views

Difference between cleaning products [closed]

I have a few cleaning products and after I looked on the ingredients, they feel pretty redundant: Bath cleaner: Less than 5% anionic tensides, anionic tensides, scent. Shower cleaner: Less than 5% ...
3
votes
1answer
2k views

Bleach turned towel bright pink before fading to white

We have some relatively new white towels that were getting dirty, so we decided to clean them with bleach (standard Clorox). When we sprayed the diluted bleach on the towels they immediately turned ...
1
vote
0answers
31 views

Homemade Fabreze mystery substance

My wife made a cleaning solution of isopropyl alchohol (1200mL), baking soda (100 mL) and distilled water(2400 mL). She first mixes baking soda with warm water till it dissolves. Then adds the ...
1
vote
1answer
58 views

Ultrasonic bath operation time

I use an ultrasonic bath in my lab for some chemical treatment of samples. It usually takes several hours with short breaks or even without it. I have a timer at the bath with a limit 90 min. So I ...
0
votes
1answer
850 views

Methanol vs Ethanol Substrate cleaning

We have to clean substrates, often made of STO or MgO, before PLD for thin film growth. Previously we would use ethanol for sonication to clean the substrates. We recently ran out of ethanol but have ...
0
votes
2answers
474 views

How to clean a copper pan from black burned fat chemically?

I have several copper pans which I use daily. I don’t have the time to always clean them. Now they have a thick crust of black burned fat. When I wash it with dish soda, nothing changes. And I don’t ...
-3
votes
5answers
10k views

Repairing acetone damage and discoloration to plastic

I used acetone on the back of my monitor to get rid of old stickers from LED strips. However it severely damaged my monitor. Anyway to undo this or repair it?
-1
votes
1answer
79 views

Getting rid of the stench

I recently cleaned my dogs kennel. My girlfriend has been putting her puppy in with my older dog. The kennel was thoroughly dirty. Much urine and fecal matter on the concrete. I used a solution of ...
0
votes
1answer
108 views

Cleaning with sodium bicarbonate

I have a small metal, most likely silver, cross. It is an old object and has turned dark. In order to clean it, my mother told me to boil it for a few minutes in water containing sodium bicarbonate. ...
3
votes
1answer
161 views

Disrupting the chemistry of oobleck so that it behaves like a newtonian fluid

Oobleck (a mixture of cornstarch and water) is a non-newtonian fluid, so it acts like a solid when under pressure, and like a liquid otherwise. My question is this, is there anything you could mix in ...
3
votes
1answer
907 views

How to remove paraffin wax drop from cam lense glass?

When I put a my cellphone on a table for charging, some drops of paraffin wax were laying there which I couldn't see. After some time during charging, heat melted the paraffin wax and it stuck on the ...
1
vote
0answers
1k views

Removing Lysol from oven [closed]

My son put Lysol in the oven, how do I make it safe again? I really don't want to blow up my house over a chicken pot pie. I have new recipe that I really want to try out and it does not include ...
3
votes
2answers
8k views

Acetic(vinegar) and citric acid as the rust remover

I tested, separately, acetic and citric acids for cleaning steel parts. After 24 hours I have moderate results for acetic acid, and good results for citric acid. But in both cases, rust doesn't ...
0
votes
0answers
104 views

How can I clean CrO3 (chromium trioxide) from carpet?

Is it dangerous a if small amount of $\ce{CrO3}$ or chromium trioxide is on the carpet? I tried washing it with water but it wont dissolve in water how can I clean it?
0
votes
0answers
132 views

Formation of glyoxylic acid from hydrogen peroxide and glycolic acid

Will 3% hydrogen peroxide, when sprayed on 10% glycolic acid in open air, form glyoxylic acid as a product? Will steam mopping the area be a dangerous undertaking?
0
votes
0answers
60 views

How to kill/clean a strange Protein Bacteria

I forgot to throw out a packet of concentrated liquid protein (milk/eggs as drink - 100% Protein Drink) before going on vacation. Two weeks passed. At this point, I come across my drawer and floor ...
2
votes
1answer
74 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
votes
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 ...
1
vote
3answers
9k 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
votes
2answers
247 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
votes
1answer
191 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
votes
1answer
3k 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 ...
1
vote
1answer
82 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
vote
0answers
674 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
votes
0answers
65 views

Krown Rust Protection/RustCheck - Soluble in?

This is a very practical question in nature and not meant to need a tremendously technical explanation. As a little background, I work as a auto detailer and have yet to find something to easily ...
0
votes
1answer
165 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. ...