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sasan
Hazard to Self
Posts: 92
Registered: 22-2-2014
Location: TEHRAN / IRAN
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Mood: Radiative
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As unionised mentioned it depends how do you guys define dangerous,for example potassium cyanide is very toxic and deadly but it is not dangerous(it
is not explosive,flamable and...) or sulfuric acid is not toxic but very corrosive and dangerous or trinitrotoluene is toxic and dangerous and
explosive
My most dangerous product was acetone peroxide although it's not toxic but very dangerous and high explosive
I have zinc phosphide inhand too!!!!very toxic. See below-
[Edited on 8-4-2014 by Bert]
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sasan
Hazard to Self
Posts: 92
Registered: 22-2-2014
Location: TEHRAN / IRAN
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Mood: Radiative
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There is a mistake on my last reply,zinc phosphide is very toxic and releases toxic phosphine gas in contact with water and acids
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DrSchnufflez
Hazard to Others
Posts: 114
Registered: 22-1-2013
Location: Australia
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Mood: No Mood
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Disulphur dichloride, hydrazine sulphate, lead acetate and nitrate, red fuming nitric acid and nitrobenzene are the ones which I consider the most
dangerous of the chemicals that I have synthesized.
‘I’m free and easy-I’ll see you there!’
- Our Sunshine, Paul Kelly
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Rogeryermaw
National Hazard
Posts: 656
Registered: 18-8-2010
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Mood: No Mood
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elemental phosphorus, phosphorus trichloride, bromoethane, ethylamine, diethylamine, triethylamine, nitrogen triiodide (for giggles), RFNA. there are
others but PCl3 was the worst. i was in the hospital for 5 days after accidental skin contact with a mixture of this and a tiny amount of P4(l) with
liver damage. fortunately, the liver has an incredible ability to repair itself when it's not being abused heavily(according to the sawbones). use
care kiddies!
[Edited on 14-5-2014 by Rogeryermaw]
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Mailinmypocket
International Hazard
Posts: 1351
Registered: 12-5-2011
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Mood: No Mood
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Wow that sounds horrible, must have been very scary!
I suppose besides the usual things like bromine the most dangerous for myself was experimenting with silicon tetrafluoride (toxic gas) and preparing
sodium monothioarsenate (requires handling arsenic trioxide and refluxing arsenic compounds).
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Magpie
lab constructor
Posts: 5939
Registered: 1-11-2003
Location: USA
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Mood: Chemistry: the subtle science.
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KCN, H2S, P, chlorosulfonic acid, oleum, S2Br2, Cl2, Br2, HgCl2.
I recently decided I didn't want to store my white P anymore due to its fire hazard, so tried to make PCl3 out of it. This did not go well, so was
aborted. I was able to recover most of my P, cleaning it up with H2SO4/K2CrO7. I'm thinking I may try this again, or perhaps try PBr3 instead. I
suspect the major problem was that my P was just too dirty.
Quote: Originally posted by Rogeryermaw  | ...there are others but PCl3 was the worst. i was in the hospital for 5 days after accidental skin contact with a mixture of this and a tiny amount of
P4(l) with liver damage.
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Roger, could you tell us some details of how this accident occurred, how much PCl3 was spilled on your skin, and where. I can understand how this
could cause a painful and deep burn, but how it affected your liver has me a little puzzled.
[Edited on 14-5-2014 by Magpie]
[Edited on 14-5-2014 by Magpie]
The single most important condition for a successful synthesis is good mixing - Nicodem
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Rogeryermaw
National Hazard
Posts: 656
Registered: 18-8-2010
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Mood: No Mood
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Well I'm no doctor... I'm really not certain of the connection. I was performing a test tube scale experiment with about 2gm P4. I had it outside
clamped in a stand with a glass wool plug and a gas generator with tcca and a HCl drip. Naturally the reaction is quite exothermic. What I hadn't
expected was for the mass in the test tube to grow in volume as much as it did. The glass tubing leading the chlorine into the tube became submerged
and a bubble of Cl2 caused a tiny splash. Some of the unreacted P4 was exposed, immediately ignited, melted the glass tubing and then all hell broke
loose.
My hand was on fire. I reacted much unlike a chemist and tried to pat out the flame but of course only spread it to my pants. Much in pain, I ran
inside and dropped my burning pants, wrapped a towel around my hand and doused in the sink. With that under control, I waited for it to cool so I
could inspect to see if I would have to dig P4 out of my skin. It was a small burn but DAMN it hurt! Dressed the burn, cleaned up my equipment and
forgot about it. Within a couple days I started throwing up and had abdominal pain and swelling. Went to the e.r. and the doc said my liver enzymes
were off the chart. Naturally I didn't disclose too much. Over the five days the numbers started returning to normal and they discharged my without an
official diagnosis. Laid up in the bed with five days of morphine injections...
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woelen
Super Administrator
Posts: 7976
Registered: 20-8-2005
Location: Netherlands
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Mood: interested
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This sounds really nasty, but good to read that there is no permanent damage. It is not the PCl3 which caused the trouble but the white P. White P is
VERY toxic (LD50 is appr. 1 mg per kg of body weight).
PCl3 (and PCl5 as well) also is very nasty stuff, but this is more because of its extremely corrosive nature and the dense fumes of HCl given off by
these compounds
and less because of its systemic toxicity.
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confused
Hazard to Others
Posts: 244
Registered: 17-3-2013
Location: Singapore
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Mood: tired
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From what i know, the absorption of WP can cause hyperphosphatemia which leads to hypocalcemia, and ECG abnormalities(bradycardia .etc).
and can result in multiple organ failure, mostly of the liver and kidneys as it tries to excrete the substance.
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Rogeryermaw
National Hazard
Posts: 656
Registered: 18-8-2010
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Mood: No Mood
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after all that, i have no fear of phosphorus. just a deep, profound respect. next synthesis is going to be styphnic acid. that one has it's own risks.
still waiting on the resourcinol from elemental.
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Burner
Hazard to Others
Posts: 100
Registered: 28-3-2014
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^^^ I have seen this description of the synthesis (http://www.powerlabs.org/chemlabs/styphnic.htm). Are you using something similar?
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Rogeryermaw
National Hazard
Posts: 656
Registered: 18-8-2010
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Yes sir. This is basically the method I am planning to attempt. Now that all of the materials have arrived, I'll start this weekend with distilling
some HNO3.
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plante1999
International Hazard
Posts: 1936
Registered: 27-12-2010
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Mood: Mad as a hatter
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I'm glad to ear back from you Roger, had been a while since you were last active. Keep us (me) updated on your projects.
I never asked for this.
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Rogeryermaw
National Hazard
Posts: 656
Registered: 18-8-2010
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Mood: No Mood
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hey plante. nice to see you around! i will definitely keep a record of my work and share it here. the fun begins saturday.
while i couldn't find any detailed data on the skin absorption toxicity of PCl3, it is mentioned...but of course, when you read msds they will tell
you to freak out if you got table salt on your skin...that said, the scary is that things got so hot, any PCl3 produced would have vaporized and the
permissible limits of inhalation exposure are ridiculously small. no telling if that played in at all...thanking my lucky stars i had the presence of
mind to do that particular work outdoors.
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aga
Forum Drunkard
Posts: 7030
Registered: 25-3-2014
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So far, Pirahna Solution.
Apart from Chemicals, the most Dangerous thing i ever made was an Assumption ...
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The Volatile Chemist
International Hazard
Posts: 1981
Registered: 22-3-2014
Location: 'Stil' in the lab...
Member Is Offline
Mood: Copious
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| Quote: Originally posted by aga | So far, Pirahna Solution.
Apart from Chemicals, the most Dangerous thing i ever made was an Assumption ... |
Indeed!
As a teenager, some of the most dangerous things are the fumes. The car fumes and the per-fumes...
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aga
Forum Drunkard
Posts: 7030
Registered: 25-3-2014
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Perfumes just make the time memorable.
It's the hormones and pheromones that make young people all crazy.
I wonder. If an AI ever gets built, would it generate EM pheromones without even knowing ?
It probably would if it was recently built.
Older AI devices would most likely grumble about how annoying their offspring are.
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aga
Forum Drunkard
Posts: 7030
Registered: 25-3-2014
Member Is Offline
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Hahahahaaaaaaa
I missed that bit. Very funny.
Yes, Jennifer is a feminine name (One of my daughters is also called Jennifer).
Aga is a brand name for a wood-burning cooker.
plante1999 is, er, a name.
Gender doesn't really matter here - this is Virtual reality.
Don't get all confused and think it's a dating website.
If you DO get confused, then Google. Much safer.
[Edited on 20-5-2014 by aga]
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plante1999
International Hazard
Posts: 1936
Registered: 27-12-2010
Member Is Offline
Mood: Mad as a hatter
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Well, the point of an username is to be Gender neutral he he.
Plante is the french for plant, and 1999 is just because I could not have 2000 for the first username I used on the net (Yes I still run the same
username 10 year after ha ha).
I never asked for this.
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zirconiumiodide
Harmless
Posts: 11
Registered: 6-6-2014
Location: UK
Member Is Offline
Mood: No Mood
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Gases
Probably Nitrosyl Chloride and Nitrogen Dioxide. They are not the pleasantest of gases!
Nitrogen Dioxide when making Nitric Acid. Funnily enough throughout the whole procedure i didn't smell the gas once, as was making the acid outside
and it was a fairly windy day. The only time i did smell it was when i vented the acid a couple of hours later. Not expecting there to be much gas
evolved i was very suprised when it fizzed. I was inside at this point and quickly took the bottle outside, but not before i had got a whiff of the
stuff.
Nitrosyl Chloride has a similar smell and i produced some upon making Aluminium Nitrate. To remove the gas from the solution i had to boil it and
could see the yellow gas as it was evolved from the mixture. This i did outside, whilst i was inside controlling the heat at the plug! But a very
reactive gas. After reacting Nitric acid with the mixture (before boiling) i stored the mixture for a few days in a beaker, in a saucepan of cold
water and saw that the NC gas leaving the solution had already started eating the side of the saucepan and leaving brown marks that were quite hard to
remove!
These gases are ones i have the upmost respect for! 
Apart from gases i suppose Lead Nitrate is the most toxic solid compound i've ever made.
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The Volatile Chemist
International Hazard
Posts: 1981
Registered: 22-3-2014
Location: 'Stil' in the lab...
Member Is Offline
Mood: Copious
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Even ammonia gas hurts and sticks around. Gasses, mostly, are nasty...
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arkoma
Redneck Overlord
Posts: 1761
Registered: 3-2-2014
Location: On a Big Blue Marble hurtling through space
Member Is Offline
Mood: украї́нська
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Indeed. Ya never get immune to them.
Nickel Chloride. Didn't even realize I had it, why was so dangerous.
"We believe the knowledge and cultural heritage of mankind should be accessible to all people around the world, regardless of their wealth, social
status, nationality, citizenship, etc" z-lib
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Texium
Administrator
Posts: 4508
Registered: 11-1-2014
Location: Salt Lake City
Member Is Offline
Mood: PhD candidate!
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Yep, nickel chloride, or really any soluble nickel salt for that matter, can be very innocent and nice looking, yet also quite toxic.
Also, the worst gas I've produced is hydrogen sulfide. It's scary how it can kill your sense of smell, despite smelling awful at first, so that you
eventually just breathe it in and then die without knowing what hit you… Every time I got the slightest hint of it I'd promptly go to get some fresh
air before continuing to work.
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Fenir
Hazard to Self
Posts: 68
Registered: 7-5-2013
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The most dangerous chemical I have ever synthesized is nitrogen dioxide. It was the unintended by product of nitric acid production. The most
dangerous non-chemistry thing I have ever made was a mistake.
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APO
National Hazard
Posts: 627
Registered: 28-12-2012
Location: China Lake
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Mood: Refluxing
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Most dangerous (or nasty) I've made:
anhydrous ammonia
sulfur dioxide
nitrogen dioxide
iodoform
iodine
"Damn it George! I told you not to drop me!"
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