Questions on the harmful effects of various substances on the human body, or biological organisms in general.

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0answers
16 views

possible reactions between Propylene glycol and ethanol when heated

Could you think of any toxic reactions from heating up and vaporizing Propylene glycol and ethanol together? Conditions would be standard Temprature/pressure with presence of atmospheric gases and ...
2
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1answer
36 views

Liquifying metal and toxic fume exposure

I just read a very entertaining Youtube comment thread on a video where TheBackyardScientist melts tin on the stove in his (enclosed) kitchen, the proceeds to cook a steak on it. According to the ...
3
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1answer
49 views

What happens when deodorants or perfumes expire

I know that deodorants and perfumes have alcohol as their main ingredient so I was thinking what happens when their expiry date passes? I tried to search on google but got mixed results. Some say ...
2
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0answers
19 views

question about food toxicity in burnt 18/10 stainless steel pot

I was cooking Christmas tamales in an 18/10 stainless steel pot and I accidentally let the water evaporate and the pot started burning. I think it was probably burning for around 5 minutes or less. ...
3
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0answers
38 views

What are the dangers of melting HDPE and silicone? Is it even possible?

I've searched the internet and couldn't find a specific answer. There doesn't seem to be a single recycling company that takes empty silicone tubes (also know as mastic tubes) and recycles them. As a ...
4
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0answers
36 views

Cat litter crystals causing toxic smell upon rubbing and pouring out of the package, safe?

I am under-educated in terms of chemistry hence the question and assumptions. Basically, for our cats, we are using what seems to be the latest scientific achievement in litter sand - the litter ...
0
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1answer
57 views

Heavy Metal Toxicity [closed]

Ok, so I am working on a project where I have to make a tax for manufacturers using non recyclable materials. So for this tax you multiply the weight (in kg) by how toxic the material is, this gives ...
15
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3answers
313 views

Why is the cyanide ion toxic?

As the title implies, what is the molecular basis of cyanide toxicity? I did some searching around at the CDC and it only states that it prevents cells from using oxygen. I also read how it could take ...
3
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1answer
66 views

Why does no antitoxin for botulinum type H exist yet?

Antitoxins against the botulinum toxins type A–G produced by Clostridium botulinum are known. Why does none exist against the type H botulinum toxin yet?
3
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1answer
102 views

Nicotine from tobacco?

I'm reading a couple of methods of extracting nicotine from tobacco. I have read that many people trying to commit suicide with nicotine. The method is simple: Boil some tobacco with water Leave it ...
0
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1answer
70 views

Is it harmful to mix Hydrogen Peroxide with oven cleaning spray?

My mother recently stumbled upon this mix when she was trying to remove stains from some laundry. When just the peroxide didn't work, she sprayed on some Easy Off, and the stain disappeared. Now she ...
9
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3answers
760 views

Does Benzene's resonance structure allow it to enter DNA?

According to this link, benzene is able to insert itself into the human DNA. It isn't an authoritative source and appears to be quite biased, so I'm wondering if there's any truth to this. The ...
0
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0answers
39 views

CN- toxicity to plants

Would HCN be toxic to plants as it inhibits cytochrome c oxidase? After all all organisms do cellular respiration, and plants do aerobic respiration. If so, then how can cyanide be used as a pesticide ...
4
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1answer
463 views

Does drinking milk helps long-term chemical poisoning?

I have hared some rumors that drinking milk helps chemical poisoning. I have done a bit research and some sources confirm that. Corrosive Poisons The best first aid is to dilute the poison ...
3
votes
1answer
101 views

How to test for heavy metal in water?

Is there a way to test if water has toxic heavy metals. Samples to both the water and people who drink it are available. Preferably, it should be done with at hold materials. I could also borrow ...
9
votes
1answer
93 views

Are the tars in cannabis considerably more dangerous than those in tobacco?

The claim that "the tars in cannabis are considerably more dangerous than those in tobacco" is made in Patricks An Introduction to Medicinal Chemistry (4th edition, p. 169). It's just a simple one ...
3
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1answer
39 views

Is pigment grade titanium dioxide likely to contain any impurities that are toxic?

I have a bag of titanium dioxide of pigment quality, unknown source. I am curious to know if the manufacturing process of titanium dioxide makes it likely that it contains any toxic by products / ...
0
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0answers
21 views

Dioxine in lignified materials?

I read that hemp is bacteria resistant. And also that lignified materials, like hemp, can release dioxin when fungi attack the material. How is that possible when hemp is bacteria resistant?
6
votes
1answer
489 views

Do hard drive platters contain toxic chemicals?

So, I'm considering an Artsy Fartsy project with hard drive platters. Bring mildly aware of the world around me, I've come to the conclusion that I probably shouldn't grind up modern (or any) ...
2
votes
1answer
61 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 ...
10
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4answers
480 views

How much ozone is produced by ionization of air and how turn ozone into oxygen

I want to make a plasma speaker. I'm worried about the amount of ozone being produced by the ionization of the air and it possibly not being a safe amount. Even if it doesn't produce a dangerous ...
4
votes
2answers
59 views

NaClO Concentration

In my previous occupation the usage of bleach--$NaClO$--I found was quite staggering, and based off of the health issues that I and other coworkers were having, I wanted to see how close we were ...
1
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0answers
99 views

At what scenario will a LCD monitor that used mercury inside their lamp be harmful

Small amount of mercury and/or mercury vapors is harmful to human as it can cause damage to vital organs such as brain, heart and so on. However, there are many electronic devices such as LCD monitor ...
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1answer
126 views

Effect of tear gas and laughing gas together

What will happen if someone uses tear gas, such as CS $(\ce{C10H5ClN2})$ and laughing gas, $\ce{N2O}$, in auditorium? Means will people start laughing and crying together? Or there will be other ...
0
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1answer
67 views

Could PNP (Silicon) transistor be toxic when exposed to air\light?

The story goes as follow: While I was in the electronic room I got bored and crushed a PNP transistor (Model CDIL 2N2907) using a rotating pipe jaws just like in the picture bellow. Now, it took me ...
2
votes
1answer
86 views

Can someone induce cancer in another person

Is it possible to poison someone's food on a daily basis in order to give them cancer? The thing here is that i'm worried someone at my workplace might be poisoning other people's water (each ...
15
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2answers
28k views

How do I extract cyanide from apple seeds?

I'm working on a crime story about cyanide poisoning from apple seeds. I just would like to have an idea of what processes and extraction techniques might be involved in getting cyanide from the ...
11
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7answers
2k views

Are there any good examples of commonly ingested molecules that contain particular toxic individual elements?

In the house on my own and an article popped up on my feed with the following statement: While the Government has insisted the chemical is safe, cadmium is recognised as a cause of lung cancer ...
7
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1answer
134 views

Is Acrylamide carcinogenic? Why?

Recently concerned with health effects by common chemicals existent in food I've been rather busy reading article after article; and just an interesting one came around: Acrylamide (or acrylic ...
0
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1answer
60 views

Aspartame poisoning: Can it modify aminoacids?

I just accidentally closed a webpage (and did not find it later) which described that somehow, Aspartame poisoning victims had faults in the vital proteins of their body due to the reaction of ...
19
votes
3answers
4k views

Why is methanol toxic?

There are two points of view for the answer of this question: The biological view, the only one that I faced during my research, states that since it can trigger perilous conditions like metabolic ...
7
votes
1answer
89 views

Is Sweetwater, Missouri, named due to water contamination with lead compounds?

The town of Sweetwater, Missouri is known for its mineral resources, particularly rich lead sulfide (galena) deposits. I am curious to find the origin of the name "Sweetwater" and if it has any ...
6
votes
1answer
79 views

Cyanide from seeds breaking down in a pond

I have a large loquat tree that overhangs a pond. The loquat seeds apparently contain cyanide of some sort, so I'm trying to find the effect the seeds have when they fall in the pond. Over time I ...
5
votes
2answers
138 views

Why is mercury much more toxic when inhaled than injected?

Following wikipedia: Cases of systemic toxicity from accidental swallowing are rare, and attempted suicide via intravenous injection does not appear to result in systemic toxicity,[1] though it is ...
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1answer
83 views

is there a lead compound that crosses the blood-brain barrier when ingested?

for example mercury oxide has neurotoxic properties but isn't organic so, it isn't soluble in lipids and so doesn't cross the blood brain barrier when ingested, however, methylmercury chloride is ...
2
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1answer
2k views

Why does my coffee creamer have titanium dioxide in it and is it safe?

From the manufacturers website of a coconut french vanilla coffee creamer: Ingredients: ORGANIC COCONUT MILK (WATER, ORGANIC COCONUT CREAM), DRIED CANE SYRUP, NATURAL FLAVORS, COLORED WITH ...
2
votes
1answer
121 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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0answers
50 views

Is it dangerous to live near lead? [duplicate]

Several month ago, I soundproofed the door of my room with two sheets of lead. Can it be dangerous to live with them for many years? Can lead "decay" in some way and be inhaled? (and what happen when ...
2
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3answers
181 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 ...
3
votes
1answer
75 views

Does hydroxytyrosol have the same neurotoxicity potential as dopamine?

It has the catechol group, and it's the oxidation of the catechol group that makes dopamine produce reactive oxygen species (ROS). Hydroxytyrosol isn't that different from dopamine (the distal N ...
4
votes
4answers
229 views

What is the molecular mechanism of ammonia's toxicity?

How does it damage proteins/lipids/DNA? There seems to be surprisingly little literature on its toxicity.
5
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1answer
548 views

Toxicity of a sheet of lead?

I just went camping and someone brought a game from Australia. There was a wooden box with the top made of a thin, soft sheet of lead with a whole in it. The participants then throw coins at the box, ...
4
votes
1answer
149 views

Reduce chlorine gas

I have a simple electrolysis setup which uses aqueous sodium chloride as electrolyte. The problem is that, the setup makes tons of chlorine gas along with hydrogen (I only want hydrogen). I didn't ...
2
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0answers
39 views

What sort of lab can determine PAH concentration in a soil or charcoal sample? How difficult is it to do?

Non-chemist here. I'm curious how difficult it is to determine concentration of PAH in a sample of soil or powdered charcoal, or a sample of the two mixed together. What would be involved in doing ...
3
votes
0answers
289 views

How to test for presence of Tobacco/nicotine in a product?

I found this paper that says nicotine was found in major toothpaste brands in India. Rather than playing blame game, wouldn't it be easier to test ourselves ? How to test for presence of ...
4
votes
1answer
119 views

Why do different alcohols have different effects on the brain?

I've been trying to understand why different alcohols have different effects on the brain. Methanol is obviously poisonous, apparently because it's converted to formic acid. Because the body seems ...
2
votes
1answer
70 views

Instructions for handling toxic liquids

I would like to know what precautions should be taken when handling liquids like trichloroethylene, tetrachloroethylene, dichlormethane, and mercury. Of these, which is most toxic? I have seen ...
8
votes
1answer
197 views

How long burned tobacco smoke remain toxic?

It's hard to evaluate Environmental Tobacco Smoke lifecycle, it can certainly react, be absorbed by organisms, or be diluted in rain, and be emitted again from the ground. But in the end, I'm ...
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2answers
133 views

what is a clear liquid that attacks cellular respiration

I'm doing a biology assignment and need to find out a clear liquid that attacks cellular respiration. It needs to be toxic and either absorbed through the skin or inhaled.
4
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1answer
103 views

Chemical Spill in Charleston, West Virginia

I live in Charleston, WV. On 1/9/2014 we were told not to use our tap water for anything other than flushing the toilet after a storage facility leaked over 7,400 gallons of 4-methylcyclohexane ...