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What kind of adhesive can I use to heal a crack in glasswear?
Thanks for the help guys. The crack is right on the frit. It breaks off into three, once more or les ... |
31-12-2016 at 12:02
by: alking |
What kind of adhesive can I use to heal a crack in glasswear?
I have a 1 liter sintered funnel which has had a slow crack forming. Not even sure how it got there, ... |
29-12-2016 at 22:50
by: alking |
What's going on with my H2SO4 draincleaner? Will not clarify with H2O2.
I have a common brand of sulphuric acid based drain cleaner. It's generally pretty clean, just a lig ... |
29-12-2016 at 19:32
by: alking |
Proper Use of Thermocouple
I use a probe like that pictured and do not jacket it or anything, but then I only use it where meta ... |
17-12-2016 at 09:55
by: alking |
What do you guys use for a vacuum gauge?
I use an npt gauge like [url=https://www.amazon.com/HFS-Filled-Vacuum-Pressure-Gauge/dp/B00VQSP1BS/r ... |
22-11-2016 at 14:24
by: alking |
Powdered Zinc is stuck inside my sep funnel, how do I clean this out?
Awesome, thanks. I will try the hcl and if that fails get some copper. I did notice that it looked c ... |
17-11-2016 at 14:40
by: alking |
Powdered Zinc is stuck inside my sep funnel, how do I clean this out?
I don't even know what I did to get this mess in there, I think I forgot to filter something and pou ... |
17-11-2016 at 13:39
by: alking |
New chemicals for sale !
Second order received here too (or is it the third now?). Either way mario is great to deal with as ... |
17-11-2016 at 13:23
by: alking |
Layer Seperation between Acetone and Isopropanol!
My guess is you pulled some water and salt over so you have a partially miscible solution of the 4 l ... |
8-11-2016 at 17:35
by: alking |
Any way to dissolve bits of carbon/activated charcoal?
I've got a bunch of tiny grains of activated charcoal stuck in a fritted filter which severely hinde ... |
18-5-2016 at 13:58
by: alking |
Washing Alcohols from Dichloromethane, is it feasible?
I posted here months ago now asking how I could clean up my DCM and I have read of others doing so b ... |
7-5-2016 at 06:42
by: alking |
Dried my DCM and now I have some tiny bubbles on the bottom, are these peroxides?
[rquote=447818&tid=66148&author=solitanze]DCM slowly decomposes to HCl and phosgene (bad!) i ... |
4-5-2016 at 13:25
by: alking |
Dried my DCM and now I have some tiny bubbles on the bottom, are these peroxides?
Oh, that is good news then. What do the stabilizers protect against? I could swear I've read otherwi ... |
4-5-2016 at 05:41
by: alking |
Dried my DCM and now I have some tiny bubbles on the bottom, are these peroxides?
It was just some MgSO4 that formed spherical clear clumps giving the appearance of bubbles; I did no ... |
3-5-2016 at 18:49
by: alking |
Boilling flask method
Not all oils go appreciably rancid, you can use mineral oil or even motor oil would even be good, I ... |
3-5-2016 at 18:27
by: alking |
Dried my DCM and now I have some tiny bubbles on the bottom, are these peroxides?
I have some DCM, which has recently been distilled btw so there has not been any real time to form p ... |
3-5-2016 at 18:16
by: alking |
Would this be a good vacuum pump? Would I need to purchase anything else to make it work?
What exactly wears down over time that causes the vacuum to decrease? Is it anything serviceable tha ... |
30-4-2016 at 19:39
by: alking |
Would this be a good vacuum pump? Would I need to purchase anything else to make it work?
After doing more research it seems that I'll need a decent diaphragm pump to pull much under -25in/ ... |
30-4-2016 at 16:46
by: alking |
Would this be a good vacuum pump? Would I need to purchase anything else to make it work?
As I expected to happen sooner or later I have killed my rotary vane vacuum pump so I need a replace ... |
30-4-2016 at 12:17
by: alking |
New chemicals for sale !
Received my shipment today, the box looked awful and was literally falling apart when I received it ... |
7-4-2016 at 19:19
by: alking |
My teflon stopcock is leaking, is there anyway to fix this?
Yeah, I'm thinking it might just be defective and could use a replacement. I did not know it was bad ... |
31-3-2016 at 08:58
by: alking |
My teflon stopcock is leaking, is there anyway to fix this?
So I just noticed today there is a small leak on my sep funnel's stopcock. I thought I noticed it be ... |
30-3-2016 at 07:00
by: alking |
Are there any practical methods to break an ethanol:heptane azeotrope in the home lab?
Ok, now I have a follow up question; what if I want to recover both, is there a way that would not r ... |
28-3-2016 at 19:25
by: alking |
Are there any practical methods to break an ethanol:heptane azeotrope in the home lab?
That's a great idea, and much easier than distilling, thanks! |
25-3-2016 at 19:43
by: alking |
Are there any practical methods to break an ethanol:heptane azeotrope in the home lab?
The title pretty much explains it all. I've got a solution of heptane and ethanol which I assume is ... |
25-3-2016 at 15:47
by: alking |
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