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Hi-Valley Chemicals
Thanks for posting this, its great to know some other good suppliers of chemicals. |
11-2-2010 at 20:43
by: rrkss |
Acid Base Chemistry (H2SO4 + Na2OOCCH3)
Well did another synthesis of acetic acid using this method. This time I used anhydrous NaOAc that ... |
11-2-2010 at 12:02
by: rrkss |
Hydrazine
Good idea using ethanol to crash it out of solution. |
11-2-2010 at 10:51
by: rrkss |
Hydrazine
Take a glass rod and scratch the bottom of your flask, maybe that will cause the crystals to crash o ... |
11-2-2010 at 10:31
by: rrkss |
Cellulose Acetate w/o AcOAc
I'm going to attempt a synthesis of Cellulose Acetate over this weekend but don't have any Acetic An ... |
11-2-2010 at 10:07
by: rrkss |
Ethyl Acetate?
Another thing is to run your reflux a little bit longer. 30 minutes will give you some product but ... |
10-2-2010 at 11:23
by: rrkss |
Laboratory Tips and Tricks
[rquote=170456&tid=13156&author=Magpie]I often need a long stirring rod, something longer th ... |
10-2-2010 at 10:53
by: rrkss |
Ethyl Acetate?
[quote]100 ml of near saturated NaCl/tap water was prepared.
50 ml of this solution was added to th ... |
10-2-2010 at 10:43
by: rrkss |
Bad days in the lab or with glassware?
Got a new delivery of glassware. Everything was intact except for one multinecked 250 mL Roundbotto ... |
9-2-2010 at 11:03
by: rrkss |
Safely Storing H2SO4 (35%)
I've been storing the 30% H2SO4 in HDPE jugs so far without any incident. My concentrated stuff is ... |
31-1-2010 at 10:39
by: rrkss |
Diethyl Ether Disposal
No longer have the ether, but thanks for the tips. |
31-1-2010 at 09:00
by: rrkss |
Diethyl Ether Disposal
[rquote=170793&tid=13333&author=entropy51]Ethanol stabilizes chloroform against phosgene for ... |
30-1-2010 at 12:01
by: rrkss |
Diethyl Ether Disposal
Ether is also easy to synthesize just don't use any open flame heat sources. I use a heating mantle ... |
30-1-2010 at 09:31
by: rrkss |
Ethyl Acetate?
I did not put a thermometer in the simple distillation when I purified the compound after drying so ... |
30-1-2010 at 09:27
by: rrkss |
Ethyl Acetate?
In case you are interested and up for the challenge I'm gonna post my preparation of ethyl acetate. ... |
29-1-2010 at 21:44
by: rrkss |
Diethyl Ether Disposal
[quote author=entropy51][quote]It sounds as though you could probably use dichlormethane for that so ... |
29-1-2010 at 09:54
by: rrkss |
Diethyl Ether Disposal
[quote=170701&tid=13333&author=entropy51You can easily make FeSO4 by dissolving steel wool i ... |
29-1-2010 at 07:49
by: rrkss |
Lab Table Top?
At my university the organic chemistry labs had there bench tops made out of soap stone. The hood w ... |
28-1-2010 at 21:23
by: rrkss |
Diethyl Ether Disposal
What would be a safe easy way to dispose of some old unused diethyl ether (about 6 months old). Its ... |
28-1-2010 at 21:19
by: rrkss |
Ethyl Acetate?
Ethyl Acetate is easy to prepare but until you know a little about organic chemistry lab technique, ... |
28-1-2010 at 21:15
by: rrkss |
(Re)drying CaCl2?
I agree with entropy. I use silica gel for my dessicators and it is easy and simple to regenerate. ... |
27-1-2010 at 09:48
by: rrkss |
Acid Base Chemistry (H2SO4 + Na2OOCCH3)
Entropy sent me a wonderful method which he uses. I just recrystalize the product and wash it with ... |
13-1-2010 at 18:44
by: rrkss |
Acid Base Chemistry (H2SO4 + Na2OOCCH3)
Well saturating with salt will definately increase the polarity of the aqueous layer and thus reduce ... |
7-1-2010 at 23:44
by: rrkss |
Drying alcohols with Sodium Glycoxide
I just use a 3A molecular sieve. Its very cheap and can easily be regenerated in your oven. Leaves ... |
5-1-2010 at 11:47
by: rrkss |
Charred Glassware
Sodium Hydroxide in Ethanol seemed to work well in removing most of the charring but not all of it. |
4-1-2010 at 17:07
by: rrkss |
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