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Where to buy melting point discs?
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Topic: Where to buy melting point discs? (Read 4434 times)
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leaftye
Regular Member
Posts: 16
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Where to buy melting point discs?
«
on:
March 29, 2009, 03:56:14 PM »
Sadly, my school is broke and we're running extremely short on melting point discs. Please let me know if you know where I can buy some of these on my own.
I wouldn't mind if you told me where to get good prices on glassware too. I tend to break things.
Thanks for any and all help you can provide.
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Arkcon
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Re: Where to buy melting point discs?
«
Reply #1 on:
March 29, 2009, 04:38:01 PM »
Well, I'm intrigued, what is a "melting point disc'? A Google search doesn't turn up anything I'd recognize as applicable to lab work. Who manufactures them? And what do they do?
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Hey, I'm not judging. I just like to shoot straight. I'm a man of science.
gfunk
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Re: Where to buy melting point discs?
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Reply #2 on:
March 29, 2009, 04:47:40 PM »
Do you mean the ones used for DSC?
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Grad Student - Organic Chemistry
University of Alberta
leaftye
Regular Member
Posts: 16
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Re: Where to buy melting point discs?
«
Reply #3 on:
March 29, 2009, 05:15:29 PM »
It's kind of like DSC, except much more rudimentary. We use 3/4" diameter glass discs with a small organic sample and heat it to observe its melting point range. I don't know the brand/model of the discs we're using. I have the empty case in my locker at school. Obviously I can find out tomorrow, and I'm sure a brand and model # will make it super easy to find online.
We use those discs like we also use these tubes:
http://www.amazon.com/Kimble-Chase-34500-99-Melting-Point/dp/B001428GQI
I would use the tubes if our techs knew how to calibrate the melting point devices. You know something is wrong when the apparatus says room temperature is 5° C.
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Squirmy
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Re: Where to buy melting point discs?
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Reply #4 on:
March 29, 2009, 08:27:58 PM »
I assume you're talking about coverslips for a Fisher-Johns mp apparatus. We buy ours from Fisher Scientific (P.N. 12-546)
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leaftye
Regular Member
Posts: 16
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Re: Where to buy melting point discs?
«
Reply #5 on:
March 29, 2009, 08:37:22 PM »
Squirmy, that looks like what we use. Wow, it's a lot more expensive than I was hoping for, but I'll have to order those if I break any more of the discs in my locker.
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Squirmy
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Re: Where to buy melting point discs?
«
Reply #6 on:
March 29, 2009, 09:05:23 PM »
i know, it's sickening!! Science is expensive.
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Where to buy melting point discs?