Any idea what it might have been used for originally?ScienceSquirrel - 31-1-2011 at 03:51
Probably used for lecture / demonstration purposes.
I have seen the barking dog reaction, combustion of nitrous oxide and carbon disulphide, done in similar tubes.
Alternatively it could have been used for hydrogen and air, you would get a good pop out of that! Saerynide - 31-1-2011 at 04:02
Looking at or teaching about soil/silt chemistry/sediments?
[Edited on 1/31/2011 by Saerynide]peach - 31-1-2011 at 08:45
I saw that as well.
Something that big and made out of glass would be fairly dangerous to ignite explosive mixtures in, so I'd go with Saerynides suggestion of sediments.
Some of this large scale, thick wall glassware that turns up is from dairy processing.
[Edited on 31-1-2011 by peach]The WiZard is In - 31-1-2011 at 09:46
Any idea what it might have been used for originally?
Corning does/did sell large glass piping for use in pharm. plants
&c. Except they were made up to use fittings of some sort
to connect sections I don't remember what the ends looked like.
I doubt it had a bell end. Glass piping is not in my Corning Laboratory Catalog alas.
If you Google glass piping .... you get every head-shop on the planet....!
djh
----
WALL STREET JOURNAL
REVIEW & OUTLOOK
JANUARY 27, 2011
Land of Milk and Regulation
Preventing the next dairy farm oil slick.
President Obama says he wants to purge regulations that are "just plain dumb," like
his humorous State of the Union bit about salmon. So perhaps he should review a
new rule that is supposed to prevent oil spills akin to the Gulf Coast disaster-at the
nation's dairy farms.
Two weeks ago, the Environmental Protection Agency finalized a rule that subjects
dairy producers to the Spill Prevention, Control and Countermeasure program,
which was created in 1970 to prevent oil discharges in navigable waters or near
shorelines. Naturally, it usually applies to oil and natural gas outfits. But the EPA
has discovered that milk contains "a percentage of animal fat, which is a non-
petroleum oil," as the agency put it in the Federal Register.
In other words, the EPA thinks the next blowout may happen in rural Vermont or
Wisconsin. Other dangerous pollution risks that somehow haven't made it onto the
EPA docket include leaks from maple sugar taps and the vapors at Badger State
breweries.
The EPA rule requires farms-as well as places that make cheese, butter, yogurt, ice
cream and the like-to prepare and implement an emergency management plan in
the event of a milk catastrophe. Among dozens of requirements, farmers must train
first responders in cleanup protocol and build "containment facilities" such as dikes
or berms to mitigate offshore dairy slicks.
These plans must be in place by November, and the U.S. Department of Agriculture
is even running a $3 million program "to help farmers and ranchers comply with on-
farm oil spill regulations." You cannot make this stuff up.
The final rule is actually more lenient than the one the EPA originally proposed. The
agency tried to claim jurisdiction over the design specifications of "milk containers
and associated piping and appurtenances," until the industry pointed out that such
equipment was already overseen by the Food and Drug Administration, the USDA
and state inspectors. The EPA conceded, "While these measures are not specifically
intended for oil spill prevention, we believe they may prevent discharges of oil in
quantities that are harmful."
We appreciate Mr. Obama's call for more regulatory reason, but it would be more
credible if one of his key agencies wasn't literally crying over unspilled milk. unionised - 31-1-2011 at 11:52
"I doubt it had a bell end. "
It had, I have a few bits as novelty items. aonomus - 31-1-2011 at 12:04
Kilo lab reactors by Buchi glass are ball/socket jointed with spring loaded clamps to evenly apply pressure. The flexibility allows some leeway during
cleaning and reassembly, as well as some forgiveness with thermal expansion/contraction on large scale reactors (15-50L).
The only thing is that the piping on such reactors is maybe 1-3" ID, with fairly thick walls, and you never find pieces that long in any catalog.
I suspect that the item in the OP was some sort of movie prop, you don't find glass that thick as general stock around.psychokinetic - 31-1-2011 at 12:14
I wouldn't mind that just to play the old "My test tube is bigger than yours" game, and not lie.White Yeti - 3-8-2011 at 06:08
It was most likely used for the barking dog demonstration. Notice the deposits of sulphur on the sides of the tube.Wizzard - 3-8-2011 at 07:20
I wish I could hop over and pick that up I can't even imagine what shipping would
be for that item.Panache - 3-8-2011 at 22:51
its qvf industrial glass although i haven't seen an endcap like it before (its not a testube). The length is right also as it comes in 2 metre lengths
in that diameter, the larger diameters (1000mm) come in much shorter sections. fledarmus - 4-8-2011 at 03:50
My guess is it was once an advertisement for a scientific glassblower or glassware supply house. Would make an interesting display at an ACS
conference!bquirky - 4-8-2011 at 05:21
In high school we had one just like that. It would be filled with water and objects of different weight/shapes where dropped and timed to demonstrate
hydrodynamic drag.
I can't even imagine what shipping would
be for that item.