The Vespiary

The Hive => Chemicals & Equipment => Topic started by: Murdoc on January 18, 2003, 03:24:00 AM

Title: Price of a Aldrich modified Davies condenser
Post by: Murdoc on January 18, 2003, 03:24:00 AM

wahat is a Aldrich modified Davies condenser worth?
swim thinks its also know as a DOUBLE DAVIES condenser

sorry swim dosen't know how to properly discribe it but total lenght is ~40cm inside jacket lenght is ~22cm  its like a Liebig but with a chamber isinde it which water flows through as well.  Swim wants to buy it of a friend buit dosen't know its $.

 a pic
(https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000399365-file_4g4w.gif)

Title: aldrich prices
Post by: badbody on January 18, 2003, 07:21:00 AM

Modified Davies Condensers
250mm  z21,448-5   155.75
400mm  z21,482-5   157.45

Men's silk necktie w/ periodic table z25,339-1 $23.10

Title: thanxs
Post by: Murdoc on January 19, 2003, 04:40:00 AM

swim ended up finding one in near new condition at his university at the chem departments free glassware table.  Guess swim won't have to pay his buddy.  But thanxs for the info, always nice to see what one saved by just looking around.

Title: good for reflux?
Post by: Murdoc on January 19, 2003, 05:34:00 AM

would there be a problem in using this condensor to do a reflux?

Title: Davies
Post by: Rhodium on January 19, 2003, 05:49:00 AM

Davies condensers are excellent for reflux.

Title: I always liked the coiled reflux condensors.
Post by: yellium on January 19, 2003, 05:59:00 AM

I always liked the coiled reflux condensors. Work perfectly, only disadvantage is that you better don't work with reactions that have a tendency to spew their contents out (Al/Hg being a fine example). Coiled reflux condensors are a bitch to clean up after such accidents.

Title: spewing reactions
Post by: Organikum on January 19, 2003, 05:55:00 PM

Yellium, perhaps you should use this:

(https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000399365-file_z7ew.jpg)

Also useful in hard bumping distillations
(SJ = Standard Joint  :-[ )

If there is something I overlook please tell, I don´t have to make all bad experiences by myself to learn  :)
ORG

Title: Yeah, but I always forget to put those in...
Post by: yellium on January 19, 2003, 11:32:00 PM

Yeah, but I always forget to put one of those in between.

Title: thanx
Post by: Murdoc on January 22, 2003, 12:10:00 AM

thanks for the replies, swim can't wait to go back and see what other goodies he can  aquire free of charge.  Can't believe they give this stuff away. 1st pic goes to the chem students (but anyone can somewhat help themselves) then they send the rest of teh left overs out to other colleges, i guess its a great perk for going to a well funded research university. 

i'd suggest bees here should try looking around there local collages and u's for similar situations