| Search |
| [Next Page] |
Making ice in winter to cool the house in summer
This used to be all the rage back in the 1800s, landed gentry used to have an ice house in the groun ... |
28-7-2019 at 11:26
by: RedDwarf |
Concentrating H2SO4 without distillation (with flask ans some PTFE )
Without the fume cupboard I'm trying a less corrosive solvent mix (2017 Plum wine), ethanol is a sma ... |
27-7-2019 at 12:57
by: RedDwarf |
Free Oertling R20 Balance (200g x 0.1mg) Aylesbury UK
I'd be interested but unfortunately Aylesbury is just too far. Could you try and ensure that in futu ... |
27-7-2019 at 10:48
by: RedDwarf |
Concentrating H2SO4 without distillation (with flask ans some PTFE )
Here in the UK there are 3 types of ptfe tape :
yellow for gas ( heavier weight, not sure if it's t ... |
27-7-2019 at 07:12
by: RedDwarf |
Concentrating H2SO4 without distillation (with flask ans some PTFE )
I can believe this might work - membrane separation due to greater permeability of the much smaller ... |
26-7-2019 at 08:53
by: RedDwarf |
cyanide usage for gold leaching
What's your rationale for going with a cyanide route rather than a non-cyanide route. How much do yo ... |
24-7-2019 at 13:44
by: RedDwarf |
Useful reference books in the lab
Mine's the fifth edition (and has managed to survive more than 35 years of lack of care) and while t ... |
24-7-2019 at 13:41
by: RedDwarf |
The most useful three things in my lab
@SWIM
Do you have different lab assistants for different poisons or are they (/was he) multi-tale ... |
24-7-2019 at 12:12
by: RedDwarf |
Making Benzene by Decarboxylation Video
Good video, liked the pace and clarity and I'm also a fan of the economics being included. Do you ha ... |
24-7-2019 at 09:57
by: RedDwarf |
Why is my zinc powder not powder???
What are you trying/planning to do with the zinc? For some uses you really don't want powder and tur ... |
24-7-2019 at 09:53
by: RedDwarf |
The most useful three things in my lab
I'd have to agree with Teodor as books are probably what inspire me most.
In terms of what I run o ... |
23-7-2019 at 14:19
by: RedDwarf |
Useful reference books in the lab
All time favorites would be Perry (Chemical Engineers' Handbook by Robert H. Perry (Author), Cecil H ... |
23-7-2019 at 14:13
by: RedDwarf |
Mystery Glassware Identification Thread
I can't believe the 3 volume flask was ever part of a practical process - can you imagine the diffic ... |
10-7-2019 at 08:30
by: RedDwarf |
How to make liquid spheres coalesce faster?
One or more of :
Heating
Electrostatic field
Centrifuge
Addition/removal of surfactant to reduce ... |
8-7-2019 at 11:27
by: RedDwarf |
What size filter paper for 10cm buchner?
As someone who who built up his chemistry kit randomly/opportunistically (sometimes even oblivious e ... |
29-6-2019 at 16:11
by: RedDwarf |
Cobalt sulfate toxicity for environment
From wikipedia:
"Cobalt(II) sulfate is used in storage batteries and electroplating baths, sympat ... |
27-6-2019 at 11:58
by: RedDwarf |
With TiO2 Nitrate directly from the Atmosphere
I can't work out if the surface area in the nitrate production figures given (mg/sq metre/hr) is par ... |
27-6-2019 at 08:35
by: RedDwarf |
Vacuum aspirator using DMSO
Ignoring all the hassle of using DMSO, just assuming you'd need a minimum of a couple of liters of d ... |
25-6-2019 at 14:32
by: RedDwarf |
Recycled plastic - what happens to plastic that was degraded by UV?
We have a tendency to think of a particular plastic (eg polyethylene) as a particular compound with ... |
9-6-2019 at 10:35
by: RedDwarf |
Prescription drug degradation over time
Prescription drugs have a use by date, presumably because there is a risk of auto reaction (despite ... |
30-5-2019 at 13:50
by: RedDwarf |
Equilibrium of chromate and dichromate
Do you know what the mechanism is that pushes the equilibrium to the right at higher temperatures? |
26-5-2019 at 11:33
by: RedDwarf |
H2O2 as O2 source for propane/acetylene torch?
Fine control of pressure and flow from a peroxide oxygen generator would be much harder than just us ... |
25-5-2019 at 17:17
by: RedDwarf |
Mystery Glassware Identification Thread
Second one looks like a dean stark trap, but i think the first one has a gas liquid separation (or m ... |
20-5-2019 at 10:28
by: RedDwarf |
Waterproofing heating mantle?
Multiple sodium silicate coats might work, but even after drying and heating it can become soluble a ... |
16-5-2019 at 07:39
by: RedDwarf |
Gas pressure/flow regulator
I suspect it would be difficult at that low flow rate to get a repeatable flow just using a standard ... |
15-5-2019 at 10:29
by: RedDwarf |
| [Next Page] |
