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Thanksgiving
I'll be Thankful when this mess is over, but for now I am just happy to be well and still employed. |
26-11-2020 at 11:36
by: Dr.Bob |
Covid vaccine results
I just entered a vaccine study to test a vaccine in the clinic, so I may or may not have a vaccine s ... |
26-11-2020 at 11:29
by: Dr.Bob |
Mystery Glassware Identification Thread
I would guess that it is a way to hold down a gas inlet (often an inlet with a variable stopcock rel ... |
26-11-2020 at 11:18
by: Dr.Bob |
Glass syringe needles?
Luer fitting is the tapered part, Luer Lock is the metal twist version. They both have the same t ... |
24-11-2020 at 07:10
by: Dr.Bob |
Glass syringe needles?
I'm very confused, I have never seen a glass syringe without a luer fitting, some are just friction ... |
23-11-2020 at 16:02
by: Dr.Bob |
External heating for bath to allow use of magstir?
You can buy oil baths with a heater built in, Ace Glass sells them, I would guess others do also. T ... |
21-11-2020 at 05:32
by: Dr.Bob |
Otc oxalyl chloride success?
I agree that DMSO is not a good cosolvent due to reactions with oxalyl chloride. As long as some o ... |
21-11-2020 at 05:22
by: Dr.Bob |
Covid vaccine results
Pfizer has already releazed their final data for the EUA request, it is stellar. 95% effective, wo ... |
18-11-2020 at 11:01
by: Dr.Bob |
LAH reduction question(s)
When I say a trace of water is OK, I mean that it will destroy an equivalent amount of LAH, but the ... |
16-11-2020 at 17:33
by: Dr.Bob |
Removal of vapor duct Büchi R-114
The metal part holding the duct is integral to the rotovap.
The safest way to remove the steam ... |
16-11-2020 at 12:38
by: Dr.Bob |
LAH reduction question(s)
The LAH will remove any water still left in the THF, if you use a slight excess of LAH, it should de ... |
16-11-2020 at 12:31
by: Dr.Bob |
Free radical bromination on only the terminal ends of hexane
You could get adipic acid and reduce it to the hexane-1,6-diol, then convert that to the 1,6-dibromo ... |
14-11-2020 at 17:13
by: Dr.Bob |
Chloric Acid
Perchlorates can be powerful oxidants, including the acid, which is well known for causing explosion ... |
14-11-2020 at 17:05
by: Dr.Bob |
Science equipment looking for a home
People keep asking me for photos of items, so I have compiled a list of photos that are already post ... |
14-11-2020 at 14:03
by: Dr.Bob |
Covid vaccine results
Pfizer said right in the release (see below) that it would file for a EUA, they are saying it will b ... |
13-11-2020 at 11:31
by: Dr.Bob |
2,2'-Bis-imidazole
The mp of mp of 2-hydropyrazine 185-190 °C, according to Aldrich, so easy enough to test that idea. ... |
12-11-2020 at 05:47
by: Dr.Bob |
Covid vaccine results
Sadly, the whole thing has been mired in politics, media crap, and stupidity. Clearly, until we ha ... |
11-11-2020 at 14:35
by: Dr.Bob |
Getting the sulfur smell out of glassware and reagent bottles
Household bleach works well on most sulfur smells. You should be able to stir the toluene with it ... |
11-11-2020 at 12:55
by: Dr.Bob |
Covid vaccine results
The Pfizer vaccine is being made in at least three places, 2 in Europe, and one or more in the US, w ... |
11-11-2020 at 11:01
by: Dr.Bob |
Covid vaccine results
I agree that I am optimistic, but even Faucci said it should be available in the US before the end o ... |
10-11-2020 at 13:34
by: Dr.Bob |
Looking for recommendations for attorneys in DFW area
I would wait and see what happens, there is no telling if customs will open the package, what it mig ... |
10-11-2020 at 13:09
by: Dr.Bob |
Homemade Hydrometers
But if you are looking at the same mixtures (ethanol and water) over and over, you should be able to ... |
10-11-2020 at 10:19
by: Dr.Bob |
Covid vaccine results
From Pfizer's release:
Pfizer Inc. (NYSE: PFE) and BioNTech SE (BNTX) (Nasdaq: BNTX) today announ ... |
9-11-2020 at 12:59
by: Dr.Bob |
Covid vaccine results
The Pfizer vaccine will likely be available by Dec according to the medical people I know, and Moder ... |
9-11-2020 at 12:44
by: Dr.Bob |
Do you know chemicals by their smell?
I remember, many years back, being asked in a job interview "how to tell acetone from ethyl acetate? ... |
9-11-2020 at 12:33
by: Dr.Bob |
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