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Good source of arsenic?
Rather you than I...
19-7-2018 at 12:42
by: DavidJR
Bad elements from ebay again
[rquote=522284&tid=82049&author=woelen]I found another bad one:
https://www.ebay.nl/itm/1 ...
19-7-2018 at 12:33
by: DavidJR
Heart medication recall.
[rquote=524469&tid=85005&author=morganbw]If you eat or even drink water you are probably exp ...
18-7-2018 at 13:15
by: DavidJR
Heart medication recall.
Quite concerning that their routine QA procedures didn't catch this.
18-7-2018 at 03:04
by: DavidJR
Chloroform from the electrolysis of brine and acetone
[rquote=524305&tid=84705&author=Hunterman2244]Could you add hydrogen peroxide to produce the ...
18-7-2018 at 02:09
by: DavidJR
Toluene to Aniline path
Sodium benzoate is already readily available and very cheap (it's used as a preservative in food).
17-7-2018 at 07:01
by: DavidJR
Sciencemadness comment box!
A forum section for Analytical Chemistry might be nice
17-7-2018 at 02:45
by: DavidJR
HP (Agilent) 1050 - HPLC
Some updates:
I fixed the degasser. Essentially it's just some gas-permeable tubing (not sure wha ...
17-7-2018 at 00:00
by: DavidJR
Scored some serious lab safety gear!
[rquote=523254&tid=84476&author=unionised]Always good to trust your life to fifty bucks wort ...
7-7-2018 at 05:25
by: DavidJR
HP (Agilent) 1050 - HPLC
So, I scored an [url=https://www.ebay.co.uk/itm/202330088655]eBay bargain[/url]: an old HP 1050 HPLC ...
20-6-2018 at 12:54
by: DavidJR
Cleaning sintered glass filter from super tiny graphite mess.
[rquote=521850&tid=84123&author=Texium (zts16)][rquote=521843&tid=84123&author=SWIM] ...
16-6-2018 at 00:56
by: DavidJR
Polar solvents
[rquote=521340&tid=83923&author=Hunterman2244][rquote=521338&tid=83923&author=DavidJ ...
11-6-2018 at 12:38
by: DavidJR
Polar solvents
Diethyl ether (and other ethers).
11-6-2018 at 12:21
by: DavidJR
Separate Isopropyl Alcohol and Xylene
[rquote=521334&tid=83916&author=nimgoldman]I have less than a liter of it, so it's not a big ...
11-6-2018 at 12:07
by: DavidJR
Separate Isopropyl Alcohol and Xylene
The conditions for sulphonation of xylenes (hot sulphuric acid) would lead to the formation of diiso ...
11-6-2018 at 11:26
by: DavidJR
EPP 15% Sulphuric acid !
Also, a couple of drops on the hand is a lot easier to clean off quickly than a whole face full...
...
7-6-2018 at 13:26
by: DavidJR
Accurate Volumetric Measurement
Precision and accuracy are two very different things!
4-6-2018 at 09:24
by: DavidJR
Methanol to gasoline catalyst
[rquote=520354&tid=83535&author=Fulmen]Sorry, I misread the OP. He's after alkanes, not alke ...
3-6-2018 at 16:15
by: DavidJR
Does washing ether with a hydroxide solution make it safe enough to distill to dryness?
I'm not sure, but you could always just test it for peroxides?
3-6-2018 at 15:28
by: DavidJR
Methanol to gasoline catalyst
Who on earth makes alkanes from methanol? That's definitely not how it's done industrially. Quite th ...
2-6-2018 at 18:00
by: DavidJR
EPP 15% Sulphuric acid !
[rquote=520191&tid=83377&author=NEMO-Chemistry]
Most UK lead acid batteries are becoming se ...
1-6-2018 at 18:50
by: DavidJR
Is there a solvent I can use to wash my vacuum pump oil reservoir?
[rquote=520183&tid=83470&author=alking]Wouldn't you save 50/yr that way, where do you get 20 ...
1-6-2018 at 13:55
by: DavidJR
how much of a history does glassware keep?
[rquote=520097&tid=83053&author=LearnedAmateur]I mean I’d buy some if I’d use it for mul ...
31-5-2018 at 10:46
by: DavidJR
how much of a history does glassware keep?
[rquote=520086&tid=83053&author=LearnedAmateur]Especially handy since I don’t have access ...
31-5-2018 at 08:59
by: DavidJR
Latest chemical order?
[rquote=520085&tid=9890&author=G-Coupled][rquote=520083&tid=9890&author=DavidJR]
...
31-5-2018 at 08:54
by: DavidJR
[Next Page]
Sciencemadness Discussion Board
» Search
Select A Forum
Fundamentals
» Chemistry in General
» Organic Chemistry
» Beginnings
» Responsible Practices
» Miscellaneous
Engineering and Equipment
» Reagents and Apparatus Acquisition
» Electronics
» Process Engineering
» Materials and Metallurgy
Special Topics
» Analytical Chemistry
» Electrochemistry
» Energetic Materials
» Biochemistry
» Radiochemistry
» Computational Models and Techniques
Literature and Documentation
» Sciencemadness Wiki
» Prepublication
Non-science
» Forum Matters
» Legal and Societal Issues