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Hotplates!
I need to do distillations (mostly sub 100C boiling solvents in ntp) and then vacuuming with reagent ... |
1-11-2014 at 12:23
by: Dr.Arz |
Preferred heating and stirring methods..
Anyone used digital hot air guns to heat? The more expensive models have very accurate temp adjustme ... |
1-11-2014 at 10:49
by: Dr.Arz |
Hotplates!
Am I getting pissed off again, or am I just expecting too much from my hotplate? I heated up at full ... |
1-11-2014 at 08:16
by: Dr.Arz |
Hotplates!
Im thinking now what bath material I will use. Paraffin wax is cheap and it has good thermal capacit ... |
1-11-2014 at 07:24
by: Dr.Arz |
Slow high torque electric motors for stirrer?
Where can I get high torque low RPM electric motors, with or without rpm adjuster? I know brushless ... |
27-10-2014 at 13:39
by: Dr.Arz |
Recommendations for a hotplate?
Is the hotplate strong enough? I have found that weaker, less than 500 watt plates are pretty toyish ... |
27-10-2014 at 01:46
by: Dr.Arz |
Large glass wine flasks?
Thanks for your advices, but I have full set of Schott glassware up to 5000ml flask size. I also hav ... |
27-10-2014 at 01:36
by: Dr.Arz |
Large glass wine flasks?
I visited brewery shop some time ago and I saw there huge flasks like round bottom ones which came w ... |
26-10-2014 at 12:16
by: Dr.Arz |
Vacuum distilling high MP substance?
How can one distill a compound that has high mp and high bp at ntp in a vacuum so that the substance ... |
24-10-2014 at 08:52
by: Dr.Arz |
What to do with TCCA (Trichloroisocyanuricacid)
Which one is worse chloroacetone or benzyl chloride? |
22-10-2014 at 07:50
by: Dr.Arz |
Preferred heating and stirring methods..
Anyone have experience on vacuum overhead stirrers?
http://www.thomassci.com/Equipment/Overhead-S ... |
22-10-2014 at 06:49
by: Dr.Arz |
What to do with TCCA (Trichloroisocyanuricacid)
Does anyone know if stainless steel 300 series can be used as reaction vessel in TCCA chlorination r ... |
20-10-2014 at 10:41
by: Dr.Arz |
Insulation on fractional distillation?
Is it efficient to pack multiple glass fraction columns top by top, like two or even three 400mm? Ca ... |
20-10-2014 at 10:02
by: Dr.Arz |
High temp liquids in heating mantle and how to circulate
If there becomes a need to control temperature of a tube, lets say utilized from ordinary distilling ... |
20-10-2014 at 08:23
by: Dr.Arz |
Preferred heating and stirring methods..
Has anyone think of using hot air gun to aid heating? Idk if one can adjust the power by attaching d ... |
20-10-2014 at 06:22
by: Dr.Arz |
Preferred heating and stirring methods..
I think i will make insulated nichrome loop for low voltage high amp heater and place it into steel ... |
19-10-2014 at 20:55
by: Dr.Arz |
Aluminum BBs Vs. Lab Armor
[rquote=244119&tid=19580&author=Bot0nist]
"I don't know if they are copper (probably plated ... |
19-10-2014 at 02:18
by: Dr.Arz |
Preferred heating and stirring methods..
I have been troubling some syntheses recently. Some vacuum distillations will need substantial heati ... |
19-10-2014 at 00:29
by: Dr.Arz |
Preparation of cyanides
What kind of protective measures you use when you work with cyanides? I have read that some people h ... |
18-10-2014 at 21:48
by: Dr.Arz |
sodium nitrate from sodium hydroxide and CAN?
It will form some carbonate, but it should be very easy to filter out apart from calcium hydroxide w ... |
18-10-2014 at 18:22
by: Dr.Arz |
Mechanism of benzyl cyanide synthesis ?
Anyone have any confirmed data on toxicity of benzyl cyanide? Different sources cite that LD50 oral ... |
18-10-2014 at 18:13
by: Dr.Arz |
Extraction of sodium sulfate from powder detergent
Wow thanks! I thought some metathesis but didnt figure out any. Copper sulfate is very otc. |
18-10-2014 at 00:03
by: Dr.Arz |
Extraction of sodium sulfate from powder detergent
I cannot find Na2SO4 from anywhere but I realized powder detergents contain a lot of it. But it also ... |
17-10-2014 at 19:13
by: Dr.Arz |
Insulation on fractional distillation?
Can fractional distillation be improved by insulating the column, or does it do the opposite, I mean ... |
15-10-2014 at 15:58
by: Dr.Arz |
Quenching?
Oh, I actually found similar synthesis posted to this forum, see this topic about half-way:
http: ... |
14-10-2014 at 10:53
by: Dr.Arz |
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