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why you shouldn't touch homemade salts
I think I saw that discussion and it clearly stated that chemists show no elevated risk of getting t ... |
7-11-2020 at 01:08
by: Fyndium |
Latest chemical order?
Finally restocked some 98% sulfuric acid. |
7-11-2020 at 01:03
by: Fyndium |
Why is Chemsavers comfortable with shipping chemicals to residential addresses, but sigma/fisher/TCI/etc are not?
Funny thing that every single package that has been opened by the customs for me has contained elect ... |
6-11-2020 at 17:42
by: Fyndium |
Eye-opening lab seizure
If you are conceptualizing something that might be off the book, leave it off the book. You can read ... |
6-11-2020 at 17:33
by: Fyndium |
why you shouldn't touch homemade salts
What is the LD50 for beryllium and it's compounds? It's easier to picture how toxic it is, can it be ... |
6-11-2020 at 17:09
by: Fyndium |
Eye-opening lab seizure
Being open and having trail of documents of your hobby makes things quite a lot easier. Usually the ... |
6-11-2020 at 12:08
by: Fyndium |
Preparation of ionic nitrites
Calcium hydroxide is sold in hardware store 50c a kg, so the base is the least of the issues.
I'm ... |
6-11-2020 at 12:04
by: Fyndium |
Why is Chemsavers comfortable with shipping chemicals to residential addresses, but sigma/fisher/TCI/etc are not?
Money and liability. Private sales have returning rights and other stuff, and common order is like 3 ... |
6-11-2020 at 09:43
by: Fyndium |
Heavy metals and the non chemist- What could go wrong here...
How much lead leaches from the landmass, in numbers, and what are the normal and tolerable limits? D ... |
6-11-2020 at 09:28
by: Fyndium |
Vacuum glass implosion?
Are glass frit filters designed to handle ordinary vacuum pump pressure differential? Does size matt ... |
6-11-2020 at 06:53
by: Fyndium |
Eye-opening lab seizure
I like to state that chemistry is much like a puzzle where you have to figure a way to assemble diff ... |
6-11-2020 at 01:48
by: Fyndium |
What to do with 1,4-dioxane tar
Bin it.
Soak it in paper or just scrape it off. Nowadays everything will be burned for energy any ... |
6-11-2020 at 01:15
by: Fyndium |
Happy half million posts to sciencemadness
Practical discussion is not comparable to scientific studies.
That's because chemistry is not jus ... |
5-11-2020 at 15:38
by: Fyndium |
Heavy metals and the non chemist- What could go wrong here...
There's no politically correct way to state an insignificant environmental impact factor. The chemic ... |
5-11-2020 at 15:10
by: Fyndium |
Preparation of ionic nitrites
Could it be beneficial to actually use less nitrate compared to base and carbon, or does this kill t ... |
5-11-2020 at 15:00
by: Fyndium |
Sodium Metal Production Idea
Use a tall reaction vessel with exhaust chimney vent on top, and place your condenser coldfinger/coi ... |
5-11-2020 at 14:48
by: Fyndium |
DIY condenser
Ah, my bad. I always forget to check the date.
On the other hand I'm the archeologist who digs up ... |
5-11-2020 at 14:34
by: Fyndium |
Eye-opening lab seizure
Funny thing though, I tried to ask my gov't chem office about restrictions on storing and handling c ... |
5-11-2020 at 12:54
by: Fyndium |
Eye-opening lab seizure
When you can show actual property damage that is caused by unlawful action on a lawful matter, suing ... |
5-11-2020 at 10:17
by: Fyndium |
DIY condenser
[rquote=275098&tid=23388&author=learningChem]
I don't think small condensers are readily av ... |
5-11-2020 at 10:02
by: Fyndium |
Preparation of ionic nitrites
Ah, thanks for the input. I thought you were long gone, as this is a few years old topic.
Is the ... |
5-11-2020 at 08:37
by: Fyndium |
Preparation of ionic nitrites
I performed a test with this. I ground up 100g of KNO3, 48g of NaOH and 20g of potato starch and pla ... |
5-11-2020 at 05:08
by: Fyndium |
90 - 99% nitric acid using dichloromethane
Would it be possible to dehydrate and distill HNO3 by adding large amount of desiccant? |
5-11-2020 at 00:54
by: Fyndium |
Nitric acid
HNO3 azeotrope distills at 120C, H2SO4 either does not bring water with it or keeps it, but not 15%. ... |
4-11-2020 at 15:18
by: Fyndium |
Nitric acid
This 3% and 15% limit applies to whole EU. Silly, if oleum and dinitrogen pentoxide are still free t ... |
4-11-2020 at 13:09
by: Fyndium |
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