Questions regarding chemical and lab safety. This includes questions about proper lab procedure, safe chemical handling, and such.

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61 views

Methanol skin exposure serious or not? [closed]

I have just minutes ago been splashed with industrial grade methanol. It seemed like a small amount (1-3mL) on my skin. I already washed the affected area thoroughly with soap and water. Online I've ...
2
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2answers
50 views

What kind of fire extinguisher for chemistry at home?

The are various types of fire extinguishers. They can be based on water foam dry powder carbon dioxide wet chemicals halon etc. Suppose one is learning chemistry at home. What type of fire ...
7
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1answer
59 views

Organizing my “chemical” cabinet

I'm reorganizing my garage (I do metalworking and some machining), and now I have an empty white cabinet that I'd like to dedicate to chemical stuff. I'm not a chemist, and I don't have the typical ...
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1answer
37 views

Would nicotine @ 27g per 1.5ml be lethal? [closed]

Before giving up smoking I looked at ecigs and found that spillage on skin or ingestion could be fatal. Would a cartridge that holds 1.5-2ml of liquid at 27mg (1.8 v/v) be 27mg per drop or for the ...
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2answers
35 views

Soil organic carbon digestion methods - safety

I have several ground up soil samples that I need to get fractions from. The fractions are based on the Century Soil Model. Briefly, the fractions relate to the approximate time frame it takes for an ...
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1answer
39 views

How is the process of creating PVC fabrics harmful for the environment?

I often hear that the production process for PVC fabrics (such as those used in Gucci and Versace handbags) is very harmful to the environment. What part of the process is harmful and can this be ...
8
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2answers
66 views

Practical safety of storing potassium

Potassium ($\ce{K}$) seems to be the transitional alkali metal in terms of safety. Lighter than $\ce{K}$ and we can store under oil with no worries. Heavier than $\ce{K}$ and only ampules will work. ...
2
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1answer
55 views

what would happen if you got a full package of wet silica gel on your hand after it tore open? [closed]

I accidently opened a bag of silica gel and got it on my hand what will happen to my hand because now it kinda feels weird.
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1answer
34 views

How effective is a level A hazmat suit for immersion in deadly substances?

I know that level A type hazmat suits can protect against minor splashes, but could somebody in one survive without harm after complete immersion for a few minutes in deadly chemicals such as Sodium ...
5
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1answer
64 views

Why did the salt on the skin of my turkey react with the tin foil it was touching?

I sprinkled salt on my turkey skin and left it to dry out over night. It was covered with aluminum foil. The next morning the aluminum foil had holes 'burnt' in it and the turkey skin turned silver ...
3
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1answer
48 views

Is 1000ml of 'hot-ice' solution dangerous?

So I was trying out the sodium acetate trihydrate 'hot ice' experiment, and my 300ml test worked great. So, naturally, more is better right? (cringe) Now I have a 1000ml in a pyrex beaker cooling ...
4
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1answer
282 views

Do chemicals have an expiry date?

A bonus question would be, if so, why? Is it because it decomposes and hence the expiry date is calculated out?
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0answers
30 views

Cleaning up equipment contaminated with ethidium bromide?

I want to clean up some old equipment that was used to visualize nucleic acids with ethidium bromide. It's a UV table, built from glass and metal (stainless steel, I assume). Ethidium bromide is ...
4
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2answers
76 views

How ‘lively’ would this ‘health’ potion be?

I’ve stumbled across a rather peculiar recipe for a allegedly ‘health’ potion in a computer game, composed of an unspecified amount of each of the following: rust (iron oxide) saltpetre (potassium ...
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6answers
7k views

Do all salts taste salty?

Recently, I am learning the production of soluble and insoluble salts. My friend and I have done this experiment at the school lab. However, we want to taste them to see whether they are salty are ...
3
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1answer
43 views

Is there a way to contain fluorine gas for long term so that it can be visually observed?

Bromine, chlorine and iodine can all be sealed in a glass container for display without the elements reacting with the glass. But if you try to seal fluorine in glass I believe it will react and fog ...
2
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3answers
76 views

What are the dangers of handling 0.12N sulfuric acid?

I'm handling 0.12N of sulfuric acid for a science experiment that I am carrying out for a school project. I hear about all these terrible effects if it's ingested, inhaled, or gets in contact in skin. ...
2
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1answer
29 views

How effective is sulfur in detecting mercury vapors

I've read that powdered elemental sulfur will react to the presence of mercury vapor in the air creating red mercury sulfide, and that an open container of sulfur can be used as a means to verify ...
0
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1answer
40 views

Will lye damage vinyl pool liners?

I have a nutty neighbor that said someone told them to put liquid lye into their above ground pool. I said it would eat away the lining, their answer was to only use a little bit.
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2answers
192 views

Precautions and tips for Qualitative Inorganic Analysis of Coins

I'm a highschool student and as part of an investigatory project, I have decided to analyse which metals are present in our everyday coins. I chose this because in my previous academic year, I had ...
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1answer
74 views

How to change color of urine safely? [closed]

I am trying to find a SAFE way to change the colour of my urine, from what I have read online, Methylene Blue is relatively safe, and will change urine to blue or green. Is it safe? Can I put this in ...
0
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5answers
102 views

Safe drying agents for drying machine

When I was milling NaOH for some purpose, I noticed that the powder is incredibly hygroscopic. Because I have problems with drying certain chemicals safely (without extensive heating), I thought this ...
1
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1answer
22 views

What would chemistry seniors like to hear about industrial hygiene?

I have a master degree in physical chemistry with close to 10 years experience as a chromatographer in pharma. About two years ago I made a career change into industrial hygiene. Right now I am ...
2
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3answers
108 views

Why did roasting of CuSO4*5H2O hurt my nose?

I want to use copper(II) sulfate as rocket propellant additive in hope that it will alter the flame colour. Because water is not welcome in rocket fuel, I decided to dehydrate the crystals. First I ...
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1answer
35 views

About electricity and liquid products

This may sound weird but could one 'zap' some liquid like milk with electricity of a certain voltage for a 'few' seconds hoping to kill any bacteria in it? I know some people suggested some type of ...
3
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1answer
162 views

What is the liquid in Mathmos lava lamps?

How can I identify the liquid in Mathmos lava lamps? I have two of them with broken caps, I need to get rid of them. Can I flush the stuff down the toilet? It smells funny.
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0answers
53 views

Can I use piranha solution to clean copper out of impurities?

I have some old pieces of wire. Since I want to use copper in homemade fireworks, I'm trying to gather it from the wires. I could buy it, however harvesting is much more fun. Sulphuric acid doesn't ...
2
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3answers
129 views

Harmless & pungent volatile liquid for use in a stage show

If for some stage play/trick we would like to create some surprising effect in which something with a pungent odor has been released, but at the same time need to ensure that thing be absolutely safe ...
5
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3answers
171 views

Are radioactive isotopes of silver dangerous?

I know we all think of things like uranium as being radioactive in the nasty radiation poisoning sort of way. But do elements like silver have similar effects in their radioactive isotopes? I'm an ...
2
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1answer
73 views

How does potassium nitrate work as an oxidiser?

Potassium nitrate is very popular compound in pyrotechnics, used as an oxidiser. It can be mixed with sugar to make a "rocket candy", with coal and sulphur to form black powder. You can stick it on ...
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0answers
52 views

Does potassium nitrate + sugar solution degrade?

I have created a solution of $\ce{KNO3}$ and table sugar in order to create fuse from hemp rope. I wet the rope in the solution and let it dry - I repeat this process several times. It works and ...
4
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2answers
178 views

How to interpret the MSDS warning?

Just a quick question; I was looking up the MSDS for o-Toluic Acid for an experiment when I came across this in the "Hazards Identification" section. ...
0
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0answers
58 views

Algorithm that calculates damage from adrafinil?

is there such a thing that calculated damage of adrafinil based on dosage? lets say i take a dosage of 100mg/ day for 100 days, what would the affect be? how much % of my liver will be damaged? Do ...
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3answers
115 views

Could neutralisation of safe chemicals produce dangerous ones?

I'm basically thinking whether I could potentionally poison myself while neutralising strong acid/base by some weak base/acid when I accidentally spill it, touch it or when I'm cleaning reaction ...
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0answers
45 views

how to calculate the amount of N2 gas needed to displace O2 to 19.5%?

I have 900L of liquid $\ce{N2}$ stored at 500 psi. Using the Gas port of the tank the pressure is dropped to 50 psi to send through a 3/8 inch tube into another regulator to drop the pressure to 10 ...
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2answers
173 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. ...
4
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1answer
4k views

Can you make napalm out of gasoline and orange juice concentrate?

According to the novel Fight Club by Chuck Palahniuk: The three ways to make napalm: One, you can mix equal parts of gasoline and frozen orange juice concentrate. Two, you can mix equal parts ...
4
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1answer
142 views

Is working in the chemistry lab hazardous to health in the long term?

I would like to know whether working in the Chemistry lab would be hazardous to health in the long term. Because as everyone who worked in the chemistry lab knows that they would be handling many ...
8
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2answers
81 views

How hazardous are peroxide-able ethers if stored properly?

This question is directed towards laboratory scientists and technicians who actually deal with ethers that can develop peroxides upon concentration (e.g. diethyl ether, THF, dioxane). I am already ...
4
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1answer
47 views

Disposing of Hazardous Waste: General

I'm doing a book for the African market and the syllabus asks for discussions on proper disposal of chemicals and waste products, particularly in the classroom setting. The authors said something ...
2
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1answer
92 views

Taiwan propylene explosions one week ago

Is it wrong way to use WATER to relieve the big disaster(propylene leak). What is a better way to relieve propylene leak in a street about large area? Any possible choice to prevent explosion?
4
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1answer
177 views

How dangerous is taking a bath in Coca Cola?

What can be the effects for the body to be immersed in Coca Cola for a while? A friend commented me that the coke is quite acidic (pH 2.5 if I recall properly), and we were guessing what could be the ...
3
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2answers
115 views

Mercury and 502 glue

I do some experiments with liquid mercury and I use a special bottle that was 3d printed (ABS plastic). To prevent leaking of mercury I use 502 glue layered around the bottle. I want to know, if it ...
2
votes
1answer
198 views

Can very dilute acids exposed to air become more concentrated as water evaporates?

If a very minute quantity spilled acid (e.g. $\ce{H2SO4}$, though the question would apply to other acids as well) is cleaned up with water (e.g. yielding a $0.0001~\mathrm{M}$ solution), and some of ...
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1answer
43 views

Are there any hazardous products that would come from mixing glass cleaner with lubricant?

Are there any known safety issues if you mix: Mr.Muscle glass cleaner GT85 spray lubricant
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3answers
124 views

Does vinegar neutralize the strongly basic compounds in cement?

I have heard that washing one's hands with vinegar is effective in neutralizing the strong bases in cement and is more effective than water. I want to know how cement burns and what bases are ...
4
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2answers
109 views

Safety when handling cyclohexylamine in non-industrial amounts

Today I was pipetting some cyclohexylamine into smaller bottles so that I don't have to use the liter flask every time I need a little bit of catalyst or plasticizer. I pipetted several 10-20 mL ...
2
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2answers
107 views

What dangerous gases could electrolysis with water and sodium carbonate produce?

My friend was very nervous when he noticed that I'm performing electrolysis in a room that we've just been residing. (it was under open window to let $\ce{H2}$ out) After a sharp argument, he made me ...
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1answer
131 views

Removing prenylated phenolics from clothing, shoes, and upholstery

I live in Southern California and sometimes hike in areas that can be overgrown with a plant called purple poodle-dog bush. As I found out the first time I went crashing through a stand of the stuff, ...
2
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1answer
80 views

what makes mercury vapours so harmful

I just read an experiment in which mercury has to be heated and in the same experiment there was a note saying do not inhale mercury vapours as they are very harmful I just can't get the point why ...