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bargles!
Harmless
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Fix or toss
Should I try to have a glassblower fix this or would it be better to pitch it and get a new one?
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Manifest
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Welcome to SM! Ask around and see how much a glass blower will charge if anything, and then decide, if you can find someone to do it, I say go ahead.
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subsecret
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If, for some reason, a glassblower is unable to fix the problem, It could still work as a "messy work" condenser, or one that you don't really care
about. Just use some epoxy to patch the hole, and stick a vinyl tube where that water inlet used to be. Then you'll have an old condenser for
messy/dangerous experiments.
Welcome to SM.
Fear is what you get when caution wasn't enough.
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Texium
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Although I have not (yet) broken any major glassware, I would probably always keep it, just in case I could find an opportunity to get it fixed or use
it for something different/less technical.
Looking into the broken glass bin in the lab at my school makes me sad, because I probably would have kept most of the stuff in there if it was mine,
since it was mostly just stuff that got chipped. I've actually considered asking my teacher a couple times if I could go through it and salvage usable
stuff!
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gdflp
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Haha, I know what you mean. I was throwing away a shattered graduated cylinder and there was a perfectly good liebig condenser with a tiny chip
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Texium
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Yeah, I think I'll go by after school tomorrow or sometime next week and look around. The bin is almost full and I could see plenty of very intact
looking stuff in it. Although schools aren't supposed to give you stuff, if it's just "trash," it seems like that would be different!
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Dr.Bob
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If just the top tube was broken, then it might be easily repaired, but it looks like the top is also broken, which would be much harder to fix. It
is also harder and harder to find a living glass blower now. I wish I could find one around here who was willing to do minor repairs. There is one
local company, but they want an obscene amount of money to do work. But I am saving a bunch of stuff in hope that they will maybe give me a better
deal on a box of work. You may be able to use the condenser as a reflux type condenser or even blow air through it for some higher boiling solvents.
But I do think I have one Friedrichs left if you need another. I think that is what it is.
Bob
[Edited on 9-5-2014 by Dr.Bob]
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BobD1001
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I would have to agree with the previous posters in keeping it, you may be able to find a good glassblower who could mend the broken joint, and
hopefully repair the top as well. If no such luck comes your way, I have had some great success in repairing large fractures with JB Weld. I use a
diamond file to rough the glass surface (Silicon carbide sandpaper will work as well), clean it with some acetone, and then apply the mixed epoxy to
the joint. Hasn't failed me yet, and the stuff is highly temperature resistant. Epoxy is also quite resistant to many chemicals, although I certainly
wouldn't expect it to hold in the likes of strong mineral acids as well as some strong solvents.
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aga
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Quote: Originally posted by zts16  | | I've actually considered asking my teacher a couple times if I could go through it and salvage usable stuff! |
Route A : Ask and Ye Shall Receive, as says the Bible.
Route B : Take from the Garbage and It Is Now Yours.
A) is the Best plan
In fact, work out a Safety Plan : that would be their main objection.
I.e. how you would indemnify Them from any damage incurred by you taking broken glassware - they do not want a suit from a student saying 'They let me
take broken Glass, and now i have cut myself'
Think of all the angles from Their point of view, and try to think of the Dangers to Them, and work out ways to make those Dangers go away.
If you get it right, they will be in More danger Refusing you to recycle perfectly good glassware, as the News Coverage would be negative.
[Edited on 9-5-2014 by aga]
[Edited on 9-5-2014 by aga]
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jock88
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Could you grind an ground-glass-joint socket into it?
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bargles!
Harmless
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I appreciate all of the thoughts! I will definitely not pitch this piece and see how well it can be repaired. I will update with my plan of action and
we shall see how it turns out. I do know that glassblowers exist in a local capacity, I was just unsure of if its even possible to attempt repair in
the first place.
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subsecret
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You could also cut the glass (rather difficult with such a large diameter) and use the bottom portion as a powder funnel.
Fear is what you get when caution wasn't enough.
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HgDinis25
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You can also break it up into small pieces and use as boiling chips. Then you could claim to have homemade boiling chips even more expensive than
those fancy boiling chips you get from suppliers...
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bargles!
Harmless
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| Quote: Originally posted by HgDinis25 | | You can also break it up into small pieces and use as boiling chips. Then you could claim to have homemade boiling chips even more expensive than
those fancy boiling chips you get from suppliers... |
Best idea so far! I'd been needing to figure out how to get some nice boiling chips. I hear the more expensive they are, the fancier they work.
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jock88
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HgDinis25 is an awful man
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Manifest
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Good idea, put them in a ball mill to polish them so you don't cut yourself
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aga
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Glass dust ...
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HgDinis25
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Sorry, can't avoid it...
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Fantasma4500
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ah.. on normal school my teacher nearly threw the broken glassware at me
but highschool..
uhoh nope..
dont know where the idea of giving away trash got dangerous or whatever?
perhaps you could try to toast it with some reactive metal powder to try and see if you could get some bor out of it?
otherwise you could use the kind of sealant used for sealing windows, the stuff that comes in big plastic tubes usually sold at hardware stores,
totally blank of what it could be called in english, and as another user said: use abit of plastic tube aswell, then it should work again, especially
if its just to handle water with
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chemrox
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Never ask for permission. Rather ask for forgiveness after you've helped yourself. In the US chemistry has been usurped by lawyers so scavenging the
dustbins is "liability" i.e they can't say yes.
"When you let the dumbasses vote you end up with populism followed by autocracy and getting back is a bitch." Plato (sort of)
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cal
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Fix it by all means!
I have had several items fixed by the following company for a reasonable price.
http://www.specialtyglassinc.com/contact.html 
Thought is an action, which when acted upon becomes work and sometimes art!
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aga
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| Quote: Originally posted by chemrox | | Never ask for permission. Rather ask for forgiveness after you've helped yourself. In the US chemistry has been usurped by lawyers so scavenging the
dustbins is "liability" i.e they can't say yes. |
That is Immoral.
You *must* ask permission first.
Who you ask is debatable.
The Garbage 'Owner'? Yourself ? God ?
God always says OK.
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Fantasma4500
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we once were to make benzoic acid, me and a classmate
somehow it got totally fucked up and we got zero benzoic acid at all, it was through H2SO4, KMnO4 and benzyl alcohol
so we went in and took abit of sodium benzoate and abit of hydrochloric acid
teacher got very quiet when he saw our yield topping the vacuum filtration cup
since then he has informed me that if similar happens i wont be allowed in chemistry ever again and might get thrown out of school
forgiveness is not a word when we are talking common core
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aga
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I would suggest that you misunderstood more than one thing that was happening.
#1 is that the object was not 100% perfect performance in making benzoic acid, or looking good.
The idea was/is to Learn.
So why didn't it work out ?
By exploring Why, you would Learn something, probably more than if it had worked.
By faking the result, you learnt Nothing, and THAT is most likely what pissed the Teacher off.
(it's their job to Teach, which means Help people Learn, and they're usually passionate about doing it).
I'd suggest you go appologise in person, and explain why you did it, and be totally honest.
I'd also ask to be allowed/helped to find out what went wrong with the experiment, so you know.
Scary prospect, but i think you'll find it pays you back in many many ways.
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pichoro
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As a teacher, I agree with aga. If I had a student do what you did, I probably would've done more than simply warn them. lol Nevermind that you
fudged the numbers, although that does piss me off when I catch it in my classes; the bigger issue for me would be that of a student apparently
helping themselves to the chemical supply. Even if that one reaction was safe, that doesn't mean the next one will be.
The common core doesn't protect a student from injury, nor me or my school from lawsuit if a student gets injured under my watch, so it has no
relevance here.
[Edited on 6/11/2014 by pichoro]
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