November 30, 2021, 07:58:24 AM
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11
Hello, I have a question why the soot in this film does not catch fire and in general why is the soot very resistant to burning?

https://www.youtube.com/watch?v=_WtTag3Nm9Q&t=15s
12
I would like to know if I have the possibility to recover the Gaussian licence in case my PC has crashed.

Ask their support, not us.
13
Hello everyone.

     From Gaussian website, they mentioned "Gaussian 16 can use NVIDIA K40, K80, P100 (Rev. B.01) and V100 (Rev. C.01) GPUs under Linux.
      I would like to know if I have the possibility to recover the Gaussian licence in case my PC has crashed. also I am doing my calculation of uv spectra using the Gaussian 09 software, but when I compare with the experimental results I noticed a shift as I did my calculations without solvent but the experiment was done using THF solvent.
Could someone suggest a way to make this measurement taking into consideration
this solvent ?

Thank you

14
Not to dampen your enthusiasm, but it looks like you are just listing a lot of random instruments. Half of those won't do anything for your purpose, which makes me think you don't know what they are, which makes me think you don't know what you're doing.

I have never attempted to reverse engineer ingredients before. Now that I've been pressed on this, one of the companies I tried is Avermeen. Off their website they write a list of equipment they use for deforumulation. I'm trying to get a gauge here if this is something that would be possible to do yourself in the home and what equipment I would be able to purchase if I wouldn't be able to pay someone else to do it. I'm not a professional, don't have a lab but may be able to use the university's lab. Thought it would make a fun school day project.

What instruments are typically used during a deformulation analysis?

https://www.avomeen.com/scientific-applications/product-deformulation-service/snow rider 3d

Just looking online I'm finding gas spectrometers for under three grand. Again this is all hypothetical and fantasy, and not talking about seriously doing this. Just flirting with the idea and seeing what others think about it. The seal itself is in a glass bottle with a cork.

And finally there's also the likelihood that, even if you somehow pull off a miracle and manage to decode whatever is in the bottle, there's a good chance what's in there now isn't what was in there originally. Chemistry doesn't stop because a container is sealed - assuming the seal, usually made of rubber, is still even good - and 70 years is a long time for chemistry to happen. This is particularly the case if the container is glass, the glass is transparent, and the bottle wasn't stored in absolute darkness and low temperature.

That's very much what I was inquiring about and that is what I believed. The bottle has been in possession of one owner in their temperature controlled room but it is 70+ years old clear glass. I'm not even sure how accurate it would be if I did somehow find someone to provide the service I'm willing to pay for.

Also I've heard mentions this would not be food safe for modern standards or against the law. I'm more doing this to document history for a book I'm writing. Not looking to market a product or make money off of my findings.
Yes, thanks a lot
15
High School Chemistry Forum / Re: Cl Mass Spec exercise
« Last post by Orcio_Dojek on November 28, 2021, 05:26:02 PM »
But he placed a mixture of Cl35 and Cl37 atoms, not a Cl2 gas.

Even if they recombined the spectrometer detected only Cl+ and Cl2+.
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High School Chemistry Forum / Re: Cl Mass Spec exercise
« Last post by scanjo on November 28, 2021, 04:44:45 PM »
17
You need a much better pump and these fatty acids are hard to separate. It will get expensive and maybe not possible at all. You need to look in the literature, these types of compounds are manufactured and purified so there are methods.
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Organic Chemistry Forum / Re: Can anyone translate this study to English for me?
« Last post by Borek on November 28, 2021, 02:46:08 PM »
Yes, sounds right now.
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Citizen Chemist / Re: any tips to light thermite on fire
« Last post by billnotgatez on November 28, 2021, 12:33:04 PM »
this falls in the explosives category of the forum rules
which is not to be discussed
This is a forum policy.
Click on the link near the top center of the forum page.
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http://www.chemicalforums.com/index.php?topic=65859.0
20
Citizen Chemist / any tips to light thermite on fire
« Last post by Zenon on November 28, 2021, 12:29:56 PM »
do any of you guys know how to light thermite? I've been trying everything in the book like manganese metal and matches and bbq lighter and nothing works.
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