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Bulk (4L) Solvents Available - Pickup in SoCal US
It's a great place to visit, wouldn't want to live there.
But that is a great post to let peopl ... |
17-3-2024 at 14:07
by: Dr.Bob |
Science equipment looking for a home
I have some old Fisher drawer organizers left that I would like to sell, or take some offers on. Mo ... |
14-3-2024 at 12:31
by: Dr.Bob |
Suggestions on vacuum pump purchase
I have used aspirators, and they are fine for occasional use, but for long periods, the water use ca ... |
14-3-2024 at 07:00
by: Dr.Bob |
Synthesis of terephthalic acid from a PET water bottle
Yiu can also directly make dimethyl TPA by heating the polyester in NaOMe in methanol. That is one ... |
9-3-2024 at 17:25
by: Dr.Bob |
Preparation of biodiesel from waste cooking oil
That is a great experimental. I have made methanol based biodiesel before, and know that ethanol i ... |
2-3-2024 at 20:44
by: Dr.Bob |
Phenyl isonitrile: the worst stench ever.
I used a few alkyl ones, years ago, and made some other small to medium ones, and they were horrible ... |
28-2-2024 at 19:16
by: Dr.Bob |
Cleaning the cooling jacket of a condenser
I often clean condensers in HCl, sodium dithionate also is good to remove iron stains. Of course th ... |
27-2-2024 at 18:32
by: Dr.Bob |
Question about university
If you really want to do that work, try the Colorado School of Mines or Missouri University of Scien ... |
23-2-2024 at 11:28
by: Dr.Bob |
Multiple bad experiences with AliExpress
I have been able to buy Keck clips (for work) via ebay at $2 each a few times, and they were fine. ... |
18-2-2024 at 18:05
by: Dr.Bob |
Science equipment looking for a home
I am back from my trip, and was asked for my email by someone, it is craigslistinnc @ gmail.com, if ... |
9-2-2024 at 05:14
by: Dr.Bob |
Science equipment looking for a home
Just want to make a note that I will be away for a few days, but will answer all messages once I get ... |
25-1-2024 at 16:55
by: Dr.Bob |
Science equipment looking for a home
Some non-equilibrated addition funnels below. I have 2 x 125 ml ones that are PTFE stopcock. The ... |
12-1-2024 at 19:39
by: Dr.Bob |
Science equipment looking for a home
I have been asked for an updated list of available glassware, so I just finished editing the list to ... |
12-1-2024 at 06:21
by: Dr.Bob |
How strong is the effect of sodium ions really?
There are a lot of people in the energetics group that make KClO4, so that may be the place to ask. ... |
10-1-2024 at 13:56
by: Dr.Bob |
NaBH4 now on DEA Special Surveillance List
Doh, the email was covering a large order, and they listed two part numbers as issues. The actual D ... |
10-1-2024 at 06:23
by: Dr.Bob |
NaBH4 now on DEA Special Surveillance List
I just found out that 1,2-dichloroethane (DCE) is now a controlled reagent as well, they must have a ... |
9-1-2024 at 05:50
by: Dr.Bob |
Most efficient condensers for distillations
I have some very large and complex ones in 29/42 for inner coil and outer jacket, as well as some la ... |
8-1-2024 at 07:52
by: Dr.Bob |
2 vs 3 neck boiling flask?
I mnight be biased, as I use a Rotovap a lot, which is not common to home chemists. But they are g ... |
30-12-2023 at 13:29
by: Dr.Bob |
2 vs 3 neck boiling flask?
I rarely use 2 necked flasks. One necks have the advantage that you can use them for rotovaps, hig ... |
29-12-2023 at 11:52
by: Dr.Bob |
Are plastics really difficult to recycle ?
I have to agree that simply incinerating most garbage (after removing as much easily recycled materi ... |
26-12-2023 at 18:07
by: Dr.Bob |
Preparation of silica sulphuric acid
I think they mean a water aspirator, perhaps? So vacuum drying under a mild vacuum. Heating it w ... |
26-12-2023 at 17:48
by: Dr.Bob |
Science equipment looking for a home
A long time ago I spoke to someone who had a microscale setup with mostly 10/18 and 14/10 joints. ... |
26-12-2023 at 17:44
by: Dr.Bob |
2023 Science Madness Secret Santa – The fun begins!
Merry Christmas to all! I am sad as the package I sent a week ago (perhaps a bit too late for a ... |
25-12-2023 at 08:00
by: Dr.Bob |
Recovering palladium from triphenylphosphene palladium
Wow, I thought I had a lot of Pdterakis that had gone bad. But the dichloride should be stable as ... |
17-12-2023 at 10:17
by: Dr.Bob |
Selling Chemicals online
The challenge is that if you ship hazmat without proper training, licenses, and DOT paperwork, you c ... |
13-12-2023 at 11:28
by: Dr.Bob |
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