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Advice on best bottles for 98% HNO3
I kept fuming nitric in a sauce bottle for two years with no problem,
http://www.sciencemadness.org ...
22-5-2019 at 18:04
by: Sulaiman
Hydrochloric acid causing HDPE to bubble
Guesswork ... HCl is a small molecule and it is infamous for escaping and rusting iron/steel etc.
Y ...
21-5-2019 at 19:04
by: Sulaiman
Mystery Glassware Identification Thread
I agree that the second photo is of a separator.
Some have taps and some, like this one, have gradu ...
20-5-2019 at 19:16
by: Sulaiman
Making Aluminum (cuttings) for easier milling of Al powder
When starting with scrap cans etc it may be easier to melt the cans,
(plastic coatings, shrink-wrap ...
20-5-2019 at 17:02
by: Sulaiman
How to clean a separatory funnel?
If the flow control is ok and everything that you throw at it failed to remove the stain,
then it i ...
19-5-2019 at 20:13
by: Sulaiman
Help wanted ... calibrating a 2kg F1 calibration weight.
A rock would be a poor choice due to absorbtion, adsorbtion, porosity, roughness, surface contaminat ...
17-5-2019 at 19:57
by: Sulaiman
Correction of thermometer readings
https://www.google.com/search?q=stem+correction&oq=stem+correction&aqs=chrome..69i57.4768j0j ...
17-5-2019 at 18:24
by: Sulaiman
Help wanted ... calibrating a 2kg F1 calibration weight.
There are options but,
I have no scales that can measure 2 kg with 10 mg resolution,
and, I'm pus ...
16-5-2019 at 18:00
by: Sulaiman
Building an O2 concentrator & N2 & argon extractor
[rquote=612494&tid=150025&author=RogueRose]
I wonder which is more cost effective, cooling ...
15-5-2019 at 20:49
by: Sulaiman
Gas pressure/flow regulator
I guess that a 'normal' regulator followed by a peristaltic pump would control and meter flow ?
15-5-2019 at 18:00
by: Sulaiman
Help wanted ... calibrating a 2kg F1 calibration weight.
[rquote=612646&tid=150069&author=fusso][rquote=612644&tid=150069&author=Heptylene]Da ...
15-5-2019 at 16:52
by: Sulaiman
My bid just won the 2kg mass/weight.
Anyone able to weight it accurately for me ?

(M1 class accuracy of +/- 100 mg absolute error woul ...
15-5-2019 at 04:00
by: Sulaiman
Help wanted ... calibrating a 2kg F1 calibration weight.
I am bidding on a calibration weight, already at my maximum/only bid
https://www.ebay.co.uk/itm/Met ...
13-5-2019 at 20:08
by: Sulaiman
best alkali reistant material
Is a flask shape necessary ?
- if so then you may want to simultaneously consider whatever is after ...
13-5-2019 at 18:48
by: Sulaiman
Lithium extraction from used button batteries?
I don' know if it helps but lithium 123 cells have a nice piece of lithium foil;
http://www.science ...
12-5-2019 at 21:45
by: Sulaiman
@ Wrecking Bereserker
just in case ... lead iodide is a cumulative poison,
(by mechanisms unknown to me) the iodine helps ...
11-5-2019 at 12:46
by: Sulaiman
Posting exercises for everyone with rising difficulty?
I too would like to be part of a group learning together
- especially with SM members as mentors, ...
10-5-2019 at 14:13
by: Sulaiman
Identification of a mystery metal
Using the method that I pointed to it does not matter if the scales are neither accurate nor calibra ...
6-5-2019 at 16:04
by: Sulaiman
Welcome
always good to have new members with an interest in practical chemistry.
6-5-2019 at 14:45
by: Sulaiman
How to kill or at least repel or block ants?
I don't know what it is but this type of chalk sticks are popular
https://www.ebay.co.uk/itm/2PCS-M ...
5-5-2019 at 12:42
by: Sulaiman
How to kill or at least repel or block ants?
Boric acid sprinkled in dry places where arthropods may make a trail is fairly effective.

Ants .. ...
5-5-2019 at 10:43
by: Sulaiman
12 V vacuum pumps for filtration/distillation
For fairly low pressures I have tried peristaltic pumps - very low flow rate but
the needle on my c ...
5-5-2019 at 08:49
by: Sulaiman
just to clarify my statement
I only meant to warn against this particular model,
I have an even cheaper 300g x 0.01g scales (als ...
5-5-2019 at 07:23
by: Sulaiman
UK EPP OTC
Although I've just got rid of my liquids prior to migrating,
I could not resist buying this
[file ...
5-5-2019 at 07:15
by: Sulaiman
Need help finding old thread
http://www.sciencemadness.org/talk/viewthread.php?tid=29143 ?
5-5-2019 at 03:12
by: Sulaiman
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