I have recently purchased a larger centrifuge for my work and
want to donate my Hamilton-Bell Jr. Angle Model 1600 centrifuge to a
member. It has a fixed-angle rotor and holds 4 15 ml tubes. It occupies
less than 1 cubic foot of space, runs on 115 volt AC, maximum 3400
RPM. The only requirements I have is that the member live in the
continental U.S. and the member have a higher post count than me.
This means no KEWLS, LAMERS, and members who are brand new.
I'll pay to ship. First member meeting my criteria to post gets it !Dodoman - 4-8-2004 at 14:10
your donating that........?Eliteforum - 4-8-2004 at 14:11
I vote for Polverone to recieve such a gift!Blind Angel - 4-8-2004 at 14:16
i would vote for me, but i'm canadian. So i'll go for Polverone or another great admin (that's mean no vulture )Saerynide - 4-8-2004 at 14:38
Thats cold Cyrus - 4-8-2004 at 17:57
Great attitude, Madhatter!
To receive this gift, I vote for ME!
Just kidding. I don't need one at all, although I'm sure I could
find SOME use for a centrifuge, like trying to filter molten sodium.
Oh wait, I'm disqualified! I live in ancient Persia.
This centrifuge ought to be given to a member who has been wanting one for an experiment badly.
I'm not against Polverone getting it though. He deserves it.
And it had BETTER NOT go to anyone who already has a centrifuge! Magpie - 4-8-2004 at 18:16
That's a very generous offer! I agree that one of our hardworking admins (including vulture) should receive this. A centrifuge is a valuable
component of any well equipped lab. If I had only one vote it would be for Polverone.
Centrifuge
MadHatter - 4-8-2004 at 18:52
I've already communicated with Polverone and he wanted someone else
to have a crack at it. He says he'll take it if no one else does. As for shipping
to Vulture, I have no I idea how customs officials in Belgium would view
this.
As for my own work, I use a centrifuge to separate sub-micron aluminum.
This is the persistent material that refuses to settle out.
It is sub-micron and highly reactive.
[Edited on 5-8-2004 by MadHatter]
[Edited on 5-8-2004 by MadHatter]vulture - 5-8-2004 at 04:05
I don't have any space for a centrifuge nor an experiment that demands it...
And I'm extremely paranoid about customs these days. The word centrifuge correlates to uranium enrichment (thank you very much Mr. Powell) these
days, so better not take the risk.
I say Bromicacid gets it, as he's one of the best contributors around here.chemoleo - 5-8-2004 at 08:44
yepp i agree. plus he's in Michigan... and is likely to use it!
Separations work sooo well with centrifuges!
Lol vulture, a benchtop centrifuge like that can most certainly NOT be used for U-enrichment. Did you look at the rpm? 3400! It's not that much,
particularly for a fixed angle one.
Still it's more than useful for separating any unfilterable precipitates from a suspension.vulture - 5-8-2004 at 10:15
Quote:
Lol vulture, a benchtop centrifuge like that can most certainly NOT be used for U-enrichment.
I answer with a rhetorical question:
When was the last time you heard to public being informed correctly on such matters or on science in general? Hm? HMMM? SHOW ME YOUR PAPERS CITIZEN!Blind Angel - 5-8-2004 at 14:46
Yeah, i'll go for Bromic too. Chemeleo too maybe since a centrifuge can be use to separate cells constituant and he's working mostly in
biochemistry.
Centrifuge
MadHatter - 5-8-2004 at 17:09
As I recall, the Bush administration became suspicious of Iraq for
wanting aluminum tubes. They claimed that such tubes would be
used in a CENTRIFUGE for the purpose of uranium enrichment.
Vulture, your point is well taken because we can expect the
non-science types to immediately suspect the worst.budullewraagh - 5-8-2004 at 17:54
har har. bush attempting to justify the war again...tsk tsk.
I respectfully decline your offer.
BromicAcid - 5-8-2004 at 17:58
Sorry to say, that despits its small size I really have no room for it. My shed is packed with chemicals and they are starting to spill over into my
room. I sleep with my hot plate under my bed, right where my head lays.
It's just that my use to space consumption ratio on it would be too low. I don't think I would use it as much as many people here think.
But, wow, so many people think I deserve this and that I would make good use of it. That alone is an honor.
Regardless, there has to be someone around here that will use it, therefore, the hunt continues.
BromicAcid
MadHatter - 5-8-2004 at 19:30
BromicAcid, you suffer from the same space problem that I do.
This is the reason I want to give this centrifuge away. There is no room
left under my bed for my gear. I've filled all of my closets and have
labglass all over the room. I even have a set of chest w/drawers that
have my condenser and retort collection in it. I don't need a house.
I need a mansion to store all of this stuff !
BTW, I got outbid on eBay for another centrifuge. I wanted it for the
swinging bucket rotor that's in it. These rotors do a much better job
than the fixed-angle rotors. I would have happily ponied up for the
whole centrifuge just to get that rotor. What comes around goes
around I guess. A bidding sniper got me in the last 2 minutes of
the auction. That's OK because I'm a prominent eBay bidding sniper.
I'll keep looking.
Back on topic - you said the hunt goes on. All somebody has to do is
claim it ! One thing's for sure - this centrifuge will not end up in the
trash. That would be a terrible waste !Blind Angel - 6-8-2004 at 08:06
If no one else will take it, i'll do. I still think that chemoleo disserve it more, but it could be a good aquisition to the lab i'm
currently building for myself, i'll find an utility.
I'm from Canada so if an american want it i'd grately let my place.chemoleo - 6-8-2004 at 12:36
Thanks, except I am in Europe... so no point sending it there. Besides... I got all the centrifuges I want... at least professionally
Madhatter - if noone wants it u can of course sell it on ebay. But I am sure Blindangel could make use of it.
Blind Angel
MadHatter - 6-8-2004 at 19:46
Would there be any hassle with customs in sending it to Canada ?
Initially, this is why I wanted to limit it to the continental U.S. - no issues
with customs.Blind Angel - 6-8-2004 at 21:38
I don't think there will be, i have ordered a lot of thing from the US with no problem. Canada/US don't have very strick custom.
Anyway, i'm ready to pay the overshipping if necessary. thunderfvck - 6-8-2004 at 22:33
Just wanted to back up BlindAngel's claim. I have ordered a bunch of stuff from the US and I've never had problems with customs (that is,
besides the fact that I had to pay customs fees, which are not a problem if it's sent as a gift...hint hint). Anyways, I say this because BA and
I live in the same province, so, no problems! Send it man!trinitrotoluene - 7-8-2004 at 22:33
I live in America. I may need it, if it's the offer.
Blind Angel
MadHatter - 8-8-2004 at 00:23
The centrifuge is on its way to Blind Angel. It cost me because
of the U.S. government's bullshit ! Thunderfvck your point is well taken !
1st, I must apologize to this entire forum for being a wanker. A year ago
I received an extremely nice set of heavy-walled beakers from an
eBay seller in Alberta, Canada. I should have realized then that
this transfer didn't have the problems I was worried about. I definitely
must apologize to the Canadian members of this board. The only thing
I can tell you is that sometimes I wake up with my head jammed up
my ass !
I must thank everybody, especially the admins and mods, and in particular
Polverone and Vulture for their honesty. It has also occurred to me that
the members of this forum are unselfish.
Anyway, I have 2 lab glass items I want to donate. Both came into my
possession as a result of buying "lots" of glass on eBay. Sometimes
I have to buy the "lot" even if it means getting the one piece that I want.
The "piece" is usually a condenser or a retort. I'm a connoisseur of
fine laboratory glass, especially condensers. Currently, I have 9
condensers and 4 retorts in my collection and I'm always looking for
additions.
Sorry for straying off topic. Both pieces are round bottom Florence
boiling flasks. No use to me because I have the larger 2 litre
model which I won't give up. Piece #1 is a 250ml with a #7 stopper.
Piece #2 is unusual - it's 500ml, made by LabGlass with a 45/50
opening. It takes a #10 stopper to plug this jug ! Both flasks are
frosted for distillation adapters.
I'll include the 1-hole rubber stoppers. Same requirements as the
centrifuge. Any takers ?
Centrifuge
MadHatter - 8-8-2004 at 01:29
Trinitrotoluene, I'm sorry but you're too late. If you had read the
beginning of this thread, I shipped to the 1st member meeting
my requirements. Actually, this took some time because
most people responding were nominating others to receive.
I do however, have 2 flasks up for whoever meets the
requirements. And this time, Canadians are definitely in.
Sorry about the 1st time guys - I thought there might be a Customs
problem. I still feel like a total wanker for this given the fact a
Canadian shipped to me - without problems !
I'll live with my guilt !thunderfvck - 8-8-2004 at 09:11
heh, don't feel so bad!
Man, you're really generous. Giving away all that stuff as you are, very kind of you!
I'll be sure to check this thread often for more deals to come nuke_2b - 8-8-2004 at 10:21
Madhatter: Are you sure that it is a 500mL flask? If I'm not mistaken, labglass is the same company as United Glass Tech and their site says they
only sell 5000mL and 12000mL flasks with 45/50 joints.Cyrus - 8-8-2004 at 13:01
What type of joint is it for the 250ml- 24/40?
I would really love and use the 250ml one , please (no matter what joint size it is).
I don't have any florence flasks currently, so it would be used a lot, but does anyone else really want/need this one?
I feel uneasy giving my address away, is there some way to ship to me without me losing my security? This isn't a gov't trick is it? No,
they already know where I live.
[Edited on 8-8-2004 by Cyrus]
[Edited on 8-8-2004 by Cyrus]
Flasks
MadHatter - 9-8-2004 at 15:33
I can't look at the equipment at the moment because I'm on a computer at work.
The 500ml flask definitely has the 45/50 joint on it. It's probably an older piece
that's no longer in production. I call it unusual because the neck is almost as
wide as the rest of the flask.
WOW!
Democritus of Abdera - 9-8-2004 at 15:41
Your last post about that flask sparked my imagination, although it might be considered a rare flask, such a flask would make the removal of solids
with a rubber policeman vastly easier. With the proper reduction adaptor....
SWEET!budullewraagh - 10-8-2004 at 11:39
the image doesn't show up. i investigated further by looking through the source script and i found you tried to post something from your D
drive. you need to upload it
Upload
MadHatter - 10-8-2004 at 11:53
I'm not famliar with the procedure. How do I upload the image ?Eliteforum - 10-8-2004 at 12:12
By clicking the "Browse" button below where your write your reply.
Find the picture on your drive and then just click on post reply and the board will automatically upload it for you.
Pictues
MadHatter - 10-8-2004 at 14:42
I just deleted 2 posts if that goes through. Fair enough - I'VE BEEN A
WANKER AGAIN !
Eliteforum, THANK YOU !
Anyway, the 1st member who posts, and meets my criteria gets
the flasks. I don't care if the claim is for 1 but I'd rather it be 2 !
[Edited on 10-8-2004 by MadHatter]
Eliteforum - 10-8-2004 at 16:27
Holler! Do I win?trinitrotoluene - 10-8-2004 at 17:42
I guess I stake my claim for the flasks.Blind Angel - 10-8-2004 at 17:58
On a separate note, i received the centrifuge today, can't say anything else because i'm not home, i'll be next week. Thx
Flasks
MadHatter - 11-8-2004 at 19:04
Cyrus, the 250ml flask will be shipped to you on Friday. EliteForum, your
location is UK ? Normally, I woudn't ship that far but the 500ml flask is
light enough so it shouldn't cost that much ! Consider it a Thank You
gift for helping me with the pictures. Do you anticipate any problems
with your Customs there ?vulture - 12-8-2004 at 05:57
Glass won't be much of a problem. Label as decorative gift or something. But a bign FRAGILE sign on it, too.
I've seen the selection lines of big companies like FedEx and UPS etc. Let's just say the boxes barely touch the ground.
250ml Flask
MadHatter - 13-8-2004 at 08:09
Cyrus, the 250 ml flask was shipped with a 1-hole rubber stopper out to
you this morning. USPS priority mail. EliteForum, I still need your
mailing address.
I'm still in search of more condensers with different styles than what's in
my existing collection. Anyone happen to know where I could find a
"Metroware" condenser ? Assassinated twice by eBay bidding snipers
trying to get 1 of those. Anyway, if I find other condensers in large lots
of glass, I'll be happy to ship out the excess. Good lab glass should
never be discarded. Anyone who commits that "crime" should be shot !
Vulture, thanks for the advice on international shipping !
[Edited on 13-8-2004 by MadHatter]
ebay sniping
Magpie - 13-8-2004 at 13:36
I have a way of dealing with those pricks -although it may not appeal to everyone. I just enter a bid that is the absolute maximum that I will pay
and let ebay do the bidding. If the sniper wants to pay more than my maximum then he has earned it.Cyrus - 13-8-2004 at 15:18
I thought ebay always let/made bidders use proxy bidding. That's all I have used, and it stops sniping, almost.
MadHatter, WHAT on earth do you do with all that glassware, it sounds like you just collect it. Well, everyone has their own hobby.
I'll post back when I get the flask.
[Edited on 13-8-2004 by Cyrus]
Snipers
MadHatter - 13-8-2004 at 15:25
Magpie, I did indeed enter very high bids only to eat the proverbial bullet in the
end. The snipers usually bid in the last 2 minutes of the auction, generally
leading to an all out bidding war. At least 1 time I suspect I was the victim
of shill bidding, although it's illegal and I have no way of proving it.
Cyrus, let me know when you receive the flask. I collect condensers
and retorts, and I'm always looking to add to my collection. I only use
the liebig and graham condensers in actual applications.
[Edited on 13-8-2004 by MadHatter]
internet auctions
Magpie - 13-8-2004 at 18:48
Well I guess you guys know as much or more about buying at auction than I do. And, yes Cyrus, I believe all eBay bidding is by proxy.
I just started buying lab equipment on eBay a few weeks ago and am nearly finished. At least that is what I'm telling my wife (am I just kidding
myself?). I bought most of the items at 25-33% of catalog price based on the lowest catalog price I could find. I only bought one item on a live
bid - at LabX. That was exciting. Went nose-to-nose for 10 bids before the bidding stopped. LabX keeps the bidding open for 2 minutes past closing
for as long as the bidding continues.
500 ml Flask
MadHatter - 17-8-2004 at 07:11
Eliteforum, your flask is on its way ! Thanks Again !
[Edited on 17-8-2004 by MadHatter]Eliteforum - 17-8-2004 at 09:07
Cheers!
On The Lookout !
MadHatter - 17-8-2004 at 18:19
As I've stated before, I'm always on the lookout for condensers and
retorts. Recently on eBay, some guy had 680 pieces of glassware to
sell ! Not a condenser or retort among them I'm afraid to say ! Too
bad really, because if I had found even ONE CONDENSER or RETORT
for my collection, I would send the rest out to whoever claims it !
Ashame, really because this seller appeared to have a garage full !
This is my offer - find a "lot" of glass with an unusual or rare retort
or condenser in it. My finder's fee will be the excess glass ! I'll even pay for
the shipping as other members can attest to ! Fair enough ?
Find me one of those rare "Metroware" condensers, I'll even throw in
some cash on top ! Now I'm sure that some of you think I'm a nutjob.
That's OK ! The fact is I collect unusual pieces of chemistry glass !
Please, indulge me, it might be worth your effort ! All you have to
do is point me in the right direction !
[Edited on 18-8-2004 by MadHatter]fvcked - 17-8-2004 at 20:02
If you dont mind me asking, how do you fund your search for retorts and condensers? This seems like a hell of a lot of money you are spending to find
them.JohnWW - 18-8-2004 at 02:34
Perhaps he uses them to make drugs for sale.
John W.Eliteforum - 18-8-2004 at 02:48
Or perhaps just trying to gain/create a list of all our home/postal addresses.. Hmm!Polverone - 18-8-2004 at 09:19
Or perhaps he has a real job and can afford to spend money on his hobby.
Funding
MadHatter - 18-8-2004 at 13:10
Actually, I work 2 jobs. The full-time job takes care of my needs.
The part-time job takes care of my wants and hobbies. It's taken me
a few years to assemble my lab but IMHO, condensers are
probably the most creative labglass I've ever laid eyes on. This is why
I collect them. Current types in my collection are Alihn, Buchler,
Cold Finger, Friedrich, Graham, Liebig. The retorts I look for are antique.
I haven't had much success there.
[Edited on 18-8-2004 by MadHatter]
glass retorts
Magpie - 18-8-2004 at 18:05
MadHatter,
There are 2 glass retorts up for sale on Ebay now under item 3832981725. Most likely you have already noticed.
Glassware has always fascinated me too -some of it gives me a woody.
Retorts
MadHatter - 18-8-2004 at 18:42
Thanks, Magpie, I'll take a look !Cyrus - 20-8-2004 at 09:36
The 250 ml boiling flask arrived in one piece. (With the stopper)
Thanks!
250 ml Florence Flask
MadHatter - 20-8-2004 at 10:56
You're Welcome ! Glad it in arrived intact !
[Edited on 20-8-2004 by MadHatter]
Lot
MadHatter - 21-8-2004 at 20:22
Currently, I'm bidding on a small "lot" of labglass that contains 2
condensers I'm looking for. If the eBay snipers don't blow my
brains out, I'll post back with the excess for the forum members.
Wish me luck !
P.S. Magpie, can't argue with you on your last post - Mr. Johnson stands
up and salutes even upon reading about exciting glassware ! I had to
pony up $400 for my last centrifuge only to get the rotor. All I wanted
was the fucking rotor ! But, no problem - 1 centrifuge will back up the
other ! I'll never be lonely ! If that makes me a pervert - SO BE IT !
[Edited on 22-8-2004 by MadHatter]trinitrotoluene - 22-8-2004 at 19:07
I'm going to rearrange my lab, so far I ditched my interest of energetic materials, and more complicated synthesis, so some pieces of glassware I
just don't need anymore. I do have a 300mm graham condender, with 24/40 joints, in good condition, the only exception is a slight stain of
potassium permanganate on the joints, I don't know how to remove. Interest?
I guess I'll decide on my books, I have 16 chem textbooks, I don't need all of them,but I'll keep a few.
Now I just need to keep enough glassware to carry out basic reaction, and extracting plant alkaloids.vulture - 23-8-2004 at 11:45
Wash the joints with HCl, that'll take care of the KMnO4 stains.
eBay snipers
MadHatter - 24-8-2004 at 08:14
Sniper got me between the eyes this time around ! I couldn't get back
for the last 2 minutes because my work schedule had me on the road
at the time the auction closed. I won't give up ! I'll just look for another
lot of glass.
Question for any experienced eBay buyer: Have you ever been
solicited by a seller ? Case in point: I just lost a bidding war for
a 15kV 60 milliAmp neon sign transformer. To my surprise the seller
e-mailed me offering other transformers even offering to set a
"Buy It Now" price. Is this legal ?Eliteforum - 24-8-2004 at 11:09
Who cares as long as you get what you want?
On a side note, I got the flask this morning. Very nice, let me know if you'll be needing anything!
[Edited on 24-8-2004 by Eliteforum]
Flask
MadHatter - 24-8-2004 at 13:14
Eliteforum, glad you got it ! I'll assume it's intact. Sorry I didn't have
a better fitting stopper for it. The #9 was too small so I had to go with
the #10. Anyway, I'm still on the lookout for more unusual condensers
for my ever-expanding collection. BTW, my new centrifuge ROCKS !
That fucker pulled the sub-micron Al out of suspension in less than
5 minutes ! Can't say I'm sorry I bought it ! So now I have 2 high-speed
centrifuges with swinging bucket rotors for my sub-micron Al work.
Can't wait to test it out in flash and rocket comps !
Sniping
Quantum - 25-8-2004 at 08:12
Why don't you use a sniping tool? I used one to get my hotplate so I don't see why you can't. You sign up with a site and enter your
ebay ID, the max price you want to pay and the item #. It will enter a dollar over the next highest bidder about 5 seconds before the bidding ends.
However there are other snipers so your max price determines whether you win or lose sometimes.
side deals
Magpie - 25-8-2004 at 08:24
I have to admit that I have not read all of eBay's fine print. But I have made side deals with sellers to our mutual benefit. I don't see
how private transactions separate from the original eBay listing could be illegal, or even immoral.rift valley - 25-8-2004 at 10:03
Ebay strongly discourages making deals on the side (because they don't get their cut) But your not in danger unless you ask a seller to make a
side deal and he reports you to ebay. I think they just delete your account if you are caught.
Edit: I found this on eBay
"eBay rules prohibit use of this Contact eBay Member feature to offer to buy or sell directly without bidding on and winning the item on eBay. We
strongly advise recipients of these email offers to report them to eBay. Participants in these 'off eBay' transactions lose their ability to
use eBay Feedback and our buyer protection programs. Learn more about trading safely."
[Edited on 25-8-2004 by rift valley]JohnWW - 25-8-2004 at 13:06
That is probably a measure against spammers trying to sell things en masse, rather than private deals between individual consenting parties.
John W.
Sniping tools
vulture - 25-8-2004 at 13:14
Are worthless IMHO.
I snipe manually and it's very easy.
Requirements:
- Watch or stopwatch with countdown function.
- two open browser tabs
- price limit.
Open the main page for the auction about 15 minutes before it ends. Take the stopwatch and set it to countdown from 1 minute. Click bid but make sure
it opens in a different window. Make sure you're logged in, enter your max price so that you only have to make one click to submit.
Keep refreshing the main page for the auction as fast as possible after the 2 minute mark. Start your timer at 1 minute and submit your bid preferably
at 10s, somewhat earlier if you have a slower connection.
Works everytime for me.
Still looking !
MadHatter - 18-9-2004 at 12:03
I'm still looking for large lots of glass with condensers. Haven't found
anything yet. I'll post back when I do. Vulture, I haven't even found a
rotavap condenser lately ! It's possible the sellers are getting wise to the
value.thunderfvck - 20-9-2004 at 09:22
Sorry, I just have a couple of things to say about sniping tools...I love them!
I use SnipeRight which I think is one of the best ones out there right now. I registered the product for about $15 American, not too shabby I think.
What I like about this program is that they have their own server that deals with the sniping. So I don't even have to be on the
computer when the bid ends. This is especially useful since I'm often in school when the bids do end, and unless I want to run out of class to
snipe an auction on these SHIT computers...I think you get the point.
You can also choose the times that you want to snipe at, usually about 8 seconds does the trick although you can go as low as 2 seconds but
that's pushing it. The server is very fast and I don't have to worry about my computer locking up on me which has been a problem for me many
a time. You simply choose your max bid, and the time you want it sniped at and it's done! Go to bed, play with yourself, whatever! They'll
do it all themselves.
I've never lost a bid because of this.
You can even simulate "real" bidding patterns so that it doesn't look like you've sniped it.
All in all, I think the program pays for itself (a comment someone else had said which I completely agree with).
If you're going to snipe - SnipeRight!
hahaha. I'm not affiliated with them in any way, but it really is a great program!Eliteforum - 20-9-2004 at 13:47
MadHatter, I've received the centrifuge! The customs seem to not even have opened the crate, there was only one layer of duct tape on the box.
It's very beatiful and has a place of honor on one of my tables. I haven't tested it yet, I need to go and buy a 220-->110 volt
transformer capable of at least 150W first; which I cannot really spare the cash for until the 27th. Then I'll finally be able to make ultra-pure
PbO<SUB>2</SUB>!
I don't know how I will ever repay your kindness. If I ever find a way of making good PbO<SUB>2</SUB> anodes, I'll send you the
first 3 I make.
Thank you!
Condensers
MadHatter - 23-10-2004 at 12:34
I just purchased 2 more condensers for my collection on eBay. I wish they had been in
lots so I could ship the rest out. One is a double-jacketed Liebig and the other is a reflux
condenser that looks like an inverted Graham. The water flows through the coil instead of
the gasses needing to be condensed. I'll post pictures when I receive them. I've been
working a hell of a lot of overtime lately, so it was time to shop ! May as well enjoy it !vulture - 23-10-2004 at 12:56
Quote:
The water flows through the coil instead of the gasses
This is referred to as a Dimroth condensor in europe.
It has the advantage that it can be used in angled horizontal position, contrary to a graham. Cooling effectiveness is lower as gasses can creep up
along the wall, which is at room temperature.
[Edited on 23-10-2004 by vulture]
Condenser
MadHatter - 24-10-2004 at 16:38
Vulture, thank you for the info on this ! I'll post the pictures of both condensers when they
come in.
I actually saw one of those Dimroth condensers in the shop next to mine, but the new guy turned
it back over to the State Of Maryland, required by law, instead of giving it to me. I would have
loved receiving this, at no charge, to my collection. What a waste ! What is the State Of
Maryland going to use it for ? It was in a machine shop !
New condensers
MadHatter - 28-10-2004 at 15:42
New condensers for my collection - Dimroth on top(identified by Vulture - Thanks Again !) and
the double-walled(high efficiency) Liebig on the bottom.
Vacuum
MadHatter - 19-11-2004 at 17:01
I'm waiting for another condenser to come in. It's part of a vacuum distillation setup. It looks
like a high efficiency Allihn condenser. I'll post pictures when it arrives.Magpie - 19-11-2004 at 19:54
Is the double wall to insulate the coolant from heat loss to the ambient atmosphere? I would think that wouldn't be significant enough to worry
about. Although there is such a thing as an air condenser - and that uses convective/conductive air as coolant.
[Edited on 20-11-2004 by Magpie]
Double-walled
MadHatter - 20-11-2004 at 06:39
The double-wall causes more heat to be dumped into the coolant before exiting the
jacket. Some high-efficiency condensers double or even triple the coils in layers to
achieve this effect. The following link shows such an arrangement and as you
can see from the prices(scroll down), a bit too expensive for the home chemist.
I'm still waiting for that vacuum distillation apparatus to arrive. Unfortunately, the seller shipped
it by Parcel Post. Anyway, I'll post the pictures when the snail-mail service finally delivers it.
Condenser
MadHatter - 17-12-2004 at 06:57
The latest condenser for my collection. Here's the description: A vacuum high efficiency
condenser.
Vintage flasks
MadHatter - 17-5-2005 at 03:49
Through an eBay auction, I just won a lot of (10) round bottom boiling flasks. I love winning
lab glass in lots - especially at the low price I got. Anyway, these are supposed to be
50's vintage flasks. I'm only interested in the largest 4 flasks(2 each 1000 ml and 500 ml).
These flasks are Pyrex. I will be getting (4) 300 ml, (1) 200 ml, (1) 100 ml for a total of 6
flasks. The 1st member who yells gets them - NO CHARGE AND I'LL PAY TO SHIP !12AX7 - 17-5-2005 at 04:47
YELLING FOR WHAT I DON'T KNOW!
*Catches breath*, so, what'd I win? *reads* ooo, labware. Would be much appreciated
Tim
[Edited on 17-5-2005 by 12AX7]
Labware
MadHatter - 17-5-2005 at 16:20
It's yours ! I'll U2U a message to you when I receive them.
