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Author: Subject: Methods for Identifying Chemicals
aab18011
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Posts: 48
Registered: 11-7-2019
Location: Connecticut, USA
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Mood: Moving out and setting up shop in my new chemistry hobbit hole

Methods for Identifying Chemicals

Hi, I am new here and I am setting up my own personal lab. I have quite a lot of starting equipment that I have bought or received as a gift. However, I plan on doing my own reactions and trying to modify syntheses, and some of my products come out so different that it is hard to determine what chemicals I am making. I was wondering if there are some nice machines that can be used for this. I mean I don't want to spend 20,000$on an NMR machine, but I have heard from the grapevine that you can find one for cheap. For example, I was working with Tannic Acid in hopes of breaking off the Gallic acid units with Sodium Metabisulfite. My problem is making sure that my products are what I predicted them to be. I am the one who boils to dryness, fear me... H He Li B C(12,14) Na S Cl Mn Fe Cu Zn Ba Ag Sn I U(238) "I'd rather die on my feet than live on my knees" -Emiliano Zapata Bmoore55 Hazard to Self Posts: 66 Registered: 23-7-2018 Location: Texas Member Is Offline I could analyze your samples for you. I have my own lab with and NMR, FTIR, and GCMS. aab18011 Harmless Posts: 48 Registered: 11-7-2019 Location: Connecticut, USA Member Is Offline Mood: Moving out and setting up shop in my new chemistry hobbit hole  Quote: From: Bmoore55 I could analyze your samples for you. I have my own lab with and NMR, FTIR, and GCMS. I would be interested in that, but I'd need to check state laws for sending packages like that. My own school lab offers the service, but its expensive even for faculty. Some charge like 200$ for a small batch of samples.

I am the one who boils to dryness, fear me...
H He Li B C(12,14) Na S Cl Mn Fe Cu Zn Ba Ag Sn I U(238)
"I'd rather die on my feet than live on my knees" -Emiliano Zapata
Ubya
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Mood: I'm a maddo scientisto!!!

for amateur chemists analysing their compounds is the hardest part, you could use wet chemistry sometimes, but you can never be sure 100% to what you have.
you could try with an used MS system, some of the members here have one, or multiple instruments, but still, complex molecules can be hard to identify, expecially if you are dealing with a mixture.

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arkoma
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Quote: Originally posted by aab18011
 Quote: From: Bmoore55 I could analyze your samples for you. I have my own lab with and NMR, FTIR, and GCMS.

I would be interested in that, but I'd need to check state laws for sending packages like that. My own school lab offers the service, but its expensive even for faculty. Some charge like 200$for a small batch of samples. Hello? State law does not cover US mail. Troll?  Quote: “Travel is fatal to prejudice, bigotry, and narrow-mindedness, and many of our people need it sorely on these accounts. Broad, wholesome, charitable views of men and things cannot be acquired by vegetating in one little corner of the earth all one’s lifetime.” and.. “The gentle reader will never, never know what a consummate ass he can become until he goes abroad.” Mark Twain, The Innocents Abroad aab18011 Harmless Posts: 48 Registered: 11-7-2019 Location: Connecticut, USA Member Is Offline Mood: Moving out and setting up shop in my new chemistry hobbit hole Quote: Originally posted by arkoma Quote: Originally posted by aab18011  Quote: From: Bmoore55 I could analyze your samples for you. I have my own lab with and NMR, FTIR, and GCMS. I would be interested in that, but I'd need to check state laws for sending packages like that. My own school lab offers the service, but its expensive even for faculty. Some charge like 200$ for a small batch of samples.

Hello? State law does not cover US mail. Troll?

No no, I'm not troll. I am pretty serious about this too because I am trying to put together a research proposal and give it to my advisor, but I need proof that my syntheses are correct. I was supposed to be working on a way to use indole as a carrier for various ligands our lab is interested in.

 Quote: for amateur chemists analysing their compounds is the hardest part, you could use wet chemistry sometimes, but you can never be sure 100% to what you have. you could try with an used MS system, some of the members here have one, or multiple instruments, but still, complex molecules can be hard to identify, expecially if you are dealing with a mixture.

Yeah, I was thinking about the wet chem identification, and I will be using some methods. I need to wait until I can acquire some more chemicals, Sigma makes using dept. based discounts a nightmare.

I am the one who boils to dryness, fear me...
H He Li B C(12,14) Na S Cl Mn Fe Cu Zn Ba Ag Sn I U(238)
"I'd rather die on my feet than live on my knees" -Emiliano Zapata

 Sciencemadness Discussion Board » Fundamentals » Organic Chemistry » Methods for Identifying Chemicals Select A Forum Fundamentals   » Chemistry in General   » Organic Chemistry   » Reagents and Apparatus Acquisition   » Beginnings   » Responsible Practices   » Miscellaneous   » The Wiki Special topics   » Technochemistry   » Energetic Materials   » Biochemistry   » Radiochemistry   » Computational Models and Techniques   » Prepublication Non-chemistry   » Forum Matters   » Legal and Societal Issues