All Questions
Tagged with everyday-chemistry safety
88 questions
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Permeability of plastics to alcohol vapour
I was just wondering which plastics have the lowest permeability to alcohol vapour?
I am thinking about purchasing 70% isopropyl wipes for infrequent use around the home and worry that they may dry up ...
- 11
2
votes
0
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207
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I have tried to remove oxidation from a metal scraper using vinegar, now the metal looks and smells burnt, what went wrong?
I have recently tried to remove some oxidation from a metal scraper spatula by using vinegar. After leaving it there for a couple of hours I was left with a burnt smell (with a hint of burnt candle ...
- 31
8
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1
answer
1k
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Is powdered acid dangerous? [closed]
I was told that an acid is only dangerous because it releases $\ce{H+}$ ions when in contact with water.
Therefore, powdered acid should be completely safe on skin provided that your skin is not ...
- 91
1
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0
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91
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Solvent + Photopolymer Waste Disposal
I have a 3L jug of SLA printer-related waste that's been sitting under my desk for a while now and I'd really like to finally figure out how to get rid of it. It contains:
Ethanol (primarily) and ...
- 1,162
1
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29
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How do I understand exactly how hazardous a material is based on SDS?
I work with a lab occasionally and get asked often if a chemical is safe to breathe, how hazardous is it if it lands on skin, etc. For the most part, I'll try to go to an SDS and look it up. The ...
- 36
3
votes
1
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849
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Are there safe inks that allow one to eat a fish after painting it?
Just came across a specific type of art called Gyotaku where specific types of ink are used to paint over one side of a fish and then a paper (rice paper, shoji paper, ...) is placed on top in order ...
- 281
2
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0
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35
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General Question about transferring Solution from containers (Workplace Related)
At my workplace we will soon begin diluting a solution to specific concentrations, this is done within a specific container.
The solution to be diluted is provided by a manufacturer in the following ...
- 129
3
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100
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Formic acid and carbon monoxide outgassing from latex mattress
Formic acid is used as a coagulant to turn rubber tree sap into latex, formic acid also decomposes to carbon monoxide. Does this mean things like latex mattresses have the potential to off-gas carbon ...
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1
answer
537
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Formaldehyde safety levels
I've obtained a simple air quality analyzer which measures several items, formaldehyde concentration among them. While I cannot vouch for its correctness, I found the values measured during the last ...
1
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3
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6k
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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. ...
- 251
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1
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2k
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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 capabilities ...
- 1,566
2
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1
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3k
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Do I really need to wear protective clothing while using isopropyl alcohol? [closed]
I recently purchased a 500ml bottle of 99% isopropyl alcohol (aka isopropanol aka rubbing alcohol) for everyday use at home. The label for the bottle worryingly states:
Wear protective gloves/...
- 179
0
votes
1
answer
108
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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 ...
28
votes
2
answers
5k
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How to properly store acids at home?
I bought different kinds of acid for experiments and home usage that I stored in secured containers into an IKEA cabinet.
I just realized that despite the fact that all the containers are properly ...
- 613
2
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2
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8k
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Is sulfuric acid still hazardous after it dries?
One of our housemates decided to pour battery electrolyte (which is 30-40% sulfuric acid) into a motorcycle battery on our back porch next to our laundry washer and dryer. He did so extremely ...
- 29
4
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2
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4k
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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(...
- 1,566
8
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1
answer
495
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I (might) have accidentally combined these mold-killers at home: Any adverse reactions?
A trailer is a small enclosed space. About 2 months ago we had some mold and I applied some mold killer to a few spots that I could not remediate. Below I've listed 2 products I used. (I definitely ...
- 99
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1
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17k
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What is the liquid coming out of these Duracell batteries? [duplicate]
I picked up a remote control to a DVD player that I had not used in a couple months. The remote control was stored in a clean plastic bag.
The bottom of the remote control is covered with a liquid. ...
9
votes
1
answer
4k
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Phenol smell from hands
It is a question which I faced when I was in Senior year in high school, I used my hands to handle phenol which has turned pink due to oxidation, I washed my hands with all kind of soaps but smell in ...
- 305
2
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1
answer
424
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What is the correct way to transfer large volumes of chemicals?
I am an engineer starting a film developing and processing lab in my house for personal use. I am currently using a bathroom, and am concerned about contaminating my chemical process and the bathroom ...
4
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1
answer
183
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Pesticide Edolan U
I have recently become aware that old woolen blankets from the 1940:s to the 1970:s often contain the pesticide "eulan U 33" or "Edolan U" and wonder what is the best way to dispose of these. Ordinary ...
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32
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9
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10k
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Realistic chemical spill accident in high school chemistry class
In a story I'm writing, a teenager spills chemicals on herself in a high school chemistry class, causing her to be put under the safety shower. The spill destroys her clothes and causes minor burns. I ...
- 337
2
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0
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1k
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Baby bottles accidentally steamed with soft plastic teether - melted - Bottles still safe? [closed]
I'm not sure who to ask so have been googling around -- My husband accidentally steamed our new teether for our infant son with the bottles. What he didn't remember/realize is that you're not supposed ...
- 21
3
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1
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25k
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What happens when you mix Pine Sol with Clorox
I have read all these rumors online that mixing these two solutions will produce the chloride gas. I accidentally mixed these two while doing berthing cleaners in the communal restroom and felt very ...
- 703
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2
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1k
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How does a mercury detector work?
I am new to chemistry and saw a "portable mercury vapor monitor." How do these machines work?
- 93
3
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1
answer
2k
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Can solvents like 99.9% isopropyl alcohol and/or n-hexane be "carbonated" with CO2?
I'm working on a prototype for a new machine, and I'm trying to get solvents like $99.9\%$ isopropyl alcohol or n-hexane to be carbonated like a soda pop at cold temperatures. I have the machines and ...
- 31
1
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0
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152
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Are there art supplies that create a new color by mixing through a chemical reaction?
When two elements or compounds react together, they form new compounds, which more often than not assume new colors. If the two elements or compounds don't react, they form uniform or non-uniform ...
- 123
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2
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2k
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Is it safe to store muriatic acid, hydrogen peroxide and acetone?
I am recently getting into PCB etching. So I use 10 M HCL solution, 3% hydrogen peroxide mixed in 1:1 ratio for my etchent. Currently, I am storing my HCL and hydrogen peroxide in my shed which can ...
- 29
1
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1
answer
281
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Shouldn't MSDS data on products be publicly disclosed?
I am wondering whether companies are required to disclose MSDS data on their products: toxicity, $\mathrm{LD_{50}}$, etc. Not only that, but I am wondering whether they are required to disclose the ...
- 4,314
4
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2
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2k
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Metal rod and NMR machine [closed]
I have a metal rod in my leg from previous surgery. I believe it is titanium. Would this significantly affect/be affected by an nmr machine? I noticed that a sign by it said not to bring metal objects ...
- 611
7
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1
answer
1k
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What makes formaldehyde 'safe' or 'dangerous'?
I know that formaldehyde naturally occurs as a metabolite and can be found in our own and other animals' bodies, plants, and unprocessed food.
But formaldehyde is also registered as a carcinogenic ...
- 71
1
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0
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135
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What are APG and AEO7 and should I be concerned?
I'm considering importing some granite cleaner for my stone business to save some money and the following is the list of ingredients:
APG, AEO7, silicone oil, water, White Mineral Oil
My question ...
- 11
4
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3
answers
9k
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Reaction between lye and water?
I am planning on making some homemade soap soon and have read online that breathing in the fume generated from the reaction between lye and water is not recommended because it is "hazardous."
I am a ...
- 1,782
15
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4
answers
32k
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Are modern newspaper inks a health risk?
It's very common in India to see newspapers being used to absorb oils from oily snacks, or simply for temporary food packaging. Some articles say that covering food items in newspaper is a health risk....
- 247
2
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1
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542
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Supermarket HDPE plastic bags safety
Supermarket plastic bags are made of high density polyethylene, and I am interested in the decomposition products at high temperature: what type of compounds are released and how dangerous are they? I ...
- 123
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1
answer
1k
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Toxic levels of baking soda
What is the amount of baking soda that would be considered toxic for skin? I ask because there is a lot of misinformation online about using baking soda as a "natural" underarm deodorant, and how it ...
- 11
-1
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1
answer
2k
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What liquid other than water that is safe to put on your skin will provide the most evaporative cooling?
Suppose that you are in some extremely hot and humid place where your sweat just doesn't evaporate well enough to cool you down. You can then consider putting a liquid other than water on your skin, e....
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76
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5
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23k
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How do people know HCN smells like almonds?
I was told by my chemistry teacher that $\ce{HCN}$ smells like almonds. She then went on to tell a story about how some of her students tried to play a prank on her by pouring almond extract down the ...
- 857
1
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2
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7k
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Mixing bleach and ammonia?
I know that the two should not be mixed, but i want to know that if the two become mixed in a contained unit, does it build pressure? Or can you seal the container safely untill it can be disposed of ...
- 43
-1
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1
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8k
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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 ...
- 99
5
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3
answers
2k
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Controled burn colored fire and safety
I am a martial artist who uses fire weapons in my shows. I am wondering how I can get the flames to be different colors.
I've done some research about it, and have found that the salts of some ...
- 51
1
vote
2
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13k
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Is mixing ammonia and bleach spray in the same parcel of air considerably dangerous to health?
I've read a few articles advising not to mix bleach and ammonia in the same room because it makes chloramine gas. But my boyfriend and I are having an argument - he thinks that since those articles ...
- 111
4
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0
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601
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Brewing tea with deionized water
I am wondering what efect brewing tea (let us assume for the sake of simplicity it is green tea, brewed at about 80 °C) in deionized water might have on the product.
Will the lack of ions in the ...
- 465
3
votes
3
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2k
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Simple practical, non-toxic, non-flammable reaction for slow release of CO2
Someone I know (not me) has recently had problems with bed bugs. I have advised him his best bet is to (1) Buy a kick-ass steam cleaner and nuke the brutes from orbit, (2) get a professional pest ...
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12
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3
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52k
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Does milk drinking prevent long-term chemical poisoning?
I have heard some rumors that drinking milk prevents chemical poisoning. I have done a bit research and some sources confirm that.
Corrosive Poisons
The best first aid is to dilute the poison as ...
- 2,205
6
votes
1
answer
51k
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why does milk of magnesia have an expiration date?
I noticed an old bottle of milk of magnesia in my refrigerator and saw that it had an expiration date printed: January 2015. Checking the ingredients, I saw only three: magnesium hydroxide, purified ...
4
votes
3
answers
12k
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Is liquid oxygen non flammable?
Every one knows that liquid oxygen is flammable, but why this tank labeled like this:
so is it really liquid oxygen is non flammable?
3
votes
4
answers
3k
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Liquid nitrogen to cool liquid?
Is it possible and safe to use liquid nitrogen to quickly cool a 5 gallon tank of liquid from room teperature to say 34 °F? Or is there another way that can produce really fast results?
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2
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1
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165
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How to control and vanish termiticide/pesticide fumes from room
I had some wood work done in my room and termiticide (UNIBAN-20 (Chlorpyriphos-20% EC) was used so that there is no termites attack in future. The stupid carpenter was using this product for the first ...
- 71
2
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1
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85
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Is ingesting water during swimming harmful?
Sometimes I feel the water in the pool is heavily chlorinated. However it is impossible for me to swim without ingesting some water. I am only a learner but even advanced swimmers do concede that they ...
- 265