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Tricky Vacuum Trouble
No I don't have a digital gauge, but I have used dial mechanical gauges.
The problem would just b ... |
17-4-2023 at 14:46
by: Cathoderay |
Tricky Vacuum Trouble
Chemist1357, another way of explain it is that you are measuring the temperature at one spot (boilin ... |
17-4-2023 at 08:04
by: Cathoderay |
Mel-Temp Replacement Bulb
It would be vitally important that you read the voltage rating on the bulb base.
It isn't quite cle ... |
14-4-2023 at 15:38
by: Cathoderay |
Tricky Vacuum Trouble
It is probably a good thing to add that you are not running the distillation normally.
Normally you ... |
13-4-2023 at 06:59
by: Cathoderay |
Tricky Vacuum Trouble
I think what Rainwater is saying is that you have a high flow rate of gas (steam) flowing into the p ... |
12-4-2023 at 12:30
by: Cathoderay |
Did I ruin my digital vacuum gauge?
I found an online manual for the VG200.
It doesn't seem to be all that accurate. It is common for p ... |
11-4-2023 at 19:18
by: Cathoderay |
Did I ruin my digital vacuum gauge?
Did you try replacing the battery?
Can you see any damage when looking around the battery?
The int ... |
11-4-2023 at 07:08
by: Cathoderay |
Stir bar get stuck in RBF
I'm supposing that there is.
You never know what a used stir bar has been exposed to.
Of course th ... |
10-4-2023 at 07:52
by: Cathoderay |
EU illegal chemicals -> useful legal ones?
Part of it is that he's an Aussie. Some people don't mind it much.
https://www.youtube.com/watch?v= ... |
7-4-2023 at 07:08
by: Cathoderay |
Stir bar get stuck in RBF
Is that "fish" one that you bought or is it a used one?
Some magnetic materials handle heat bette ... |
7-4-2023 at 06:48
by: Cathoderay |
Sodium sulphide
[rquote=682944&tid=19201&author=B(a)P][rquote=682939&tid=19201&author=Admagistr][rqu ... |
4-4-2023 at 18:53
by: Cathoderay |
Sodium sulphide
Here is a link to Doug's Lab making iron sulfide.
https://www.youtube.com/watch?v=CLBdVM9_FWg
Fo ... |
4-4-2023 at 10:25
by: Cathoderay |
Brand new hotplate won't boil water?
I don't have one of those Chinese hot plates, however from various sources of info I think there is ... |
24-3-2023 at 07:48
by: Cathoderay |
Selling Off Chemical Lab
Could you provide a bit more help finding your stuff?
|
24-3-2023 at 07:21
by: Cathoderay |
Knick ph-meter Type 35
Actually I was leaning toward '60s to '70s judging from the tubes.
I'm not an expert on chemistry ... |
23-3-2023 at 20:27
by: Cathoderay |
Brand new hotplate won't boil water?
Also I think that many people put too much stock in those infrared thermometers.
Among other things ... |
23-3-2023 at 07:59
by: Cathoderay |
Brand new hotplate won't boil water?
[rquote=682594&tid=159426&author=PirateDocBrown]I suspect these Chinese ones are made for an ... |
23-3-2023 at 07:33
by: Cathoderay |
Knick ph-meter Type 35
My background is in electronics. I also restore vintage electronics.
Tubes do wear out of course, b ... |
22-3-2023 at 09:23
by: Cathoderay |
Has anyone safety coated their own glassware?
Are the vials for display or do you remove material from time to time?
If for display only you mi ... |
21-3-2023 at 16:27
by: Cathoderay |
Manganese sulfate not crystallizing
RU_KLO, it is true that boiling down will not help purify the substance, but you can crystallize it. ... |
10-3-2023 at 18:11
by: Cathoderay |
Manganese sulfate not crystallizing
I think you are a bit unclear.
Sounds like you have two problems, purification and crystallization, ... |
10-3-2023 at 08:49
by: Cathoderay |
Gold or not Gold, thats the question
Do check around, from a brief search I made, the price can vary a lot.
A "Gold Broker" may charge a ... |
3-3-2023 at 10:46
by: Cathoderay |
Gold or not Gold, thats the question
I don't know were you are located, but you might be able to buy a small piece of gold (99.9% pure) a ... |
1-3-2023 at 10:00
by: Cathoderay |
Gold or not Gold, thats the question
I take it that your goal is to obtain a pure gold salt rather than gold metal.
You also are not int ... |
28-2-2023 at 18:54
by: Cathoderay |
Gold or not Gold, thats the question
NileRed has a series of two videos about recovering gold from electronic parts.
Note that PCB proba ... |
27-2-2023 at 16:55
by: Cathoderay |
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