Is there any way to get ChemDraw for free?

Hey guys, I'm a second-year Uni student studying materials science and engineering + chem, and recently I've been really interested in going down the synthetic path. I wanted to ask y'all about your experiences as a synthetic chemists, so I can get a feel of what the field is like:

• When was the last time that you needed to create a route for something you've never synthesized before? What exactly did you do, step-by-step, to tackle it?
  • What resources did you use to help you with the synthesis (SciFinder, Reaxys, Google search, another chemist, published journals, etc.)?
  • Do you have a department or Uni that pays for those resources, or do you pay out-of-pocket? how expensive is it?
  • After finding what you need for a specific route, what did you do to prep for the actual synthesis? Did you check to verify the source is valid? How?
• When was the last time you failed a synthesis? What went wrong with it, and how did you fix it in a later synthesis?

Thank you all for your assistance!

Does anyone know what plastics are soluble and what equivalent the solvent is.
i need it for a experiment i want to run but i can't find any research on the matter

EG: Styrofoam in acetone

Hello everyone,

My desired product is a water-soluble compound but the in aqueous phase it also contains NaCl. How can I isolate my product from it?

Title says it all. I have a mystery fabric claiming its cotton, which its not. Don't know what it is, I think its polyester, but it could be a poly cotton blend. Only thing I know for sure is its some kind of plastic fabric, because it melts instead of chars and acetone doesn't do anything to it. Best way I can think of figuring that out is seeing what melts it. Any chemicals that eat polyester and are fairly easy to get?

I’m a senior in university, and I’m just now getting into research after a long time debating what I really want to do. I’ve joined a project at my school and while I enjoy lab work, I feel like most of the time I have absolutely no clue what I’m doing while everyone else is sure of themselves. Does anyone else feel like this?

My supervisor gave me a bunch of glassware to clean, among the other things there’s this round bottomed flash with the cap stuck, they have no clue what’s inside, I tried both gently heating the joint with a blow torch but it didn’t work, also I don’t want to heat it up too much because I don’t know what’s inside. I also tried cooling the cap but also didn’t work. I tried putting the whole thing in an ultrasound bath hoping the cap would pop off but didn’t work either. Suggestions are welcome.

I’m currently doing a school research project on the alkaline hydrolysis of PET to recover terephthalic acid (TPA).

My basic setup uses PET flakes, NaOH, an ethanol/water mixture, heating under reflux, followed by filtration, acidification to precipitate TPA, washing, drying, and finally a back-titration to estimate purity.

I’d like to hear from anyone who has
actually done PET alkaline hydrolysis in a lab. What were the biggest practical problems you ran into? what would you do differently if you repeated the experiment?

I’m mainly interested in practical laboratory experience.

Can anyone with subscription to "spectrabase" share the full GCMS full fragments for this compound.

I’m a homeschooled student, and my first lab I got was this one, I follow the instructions as close as I could and was just curious what are some reasons why it took so long?

I’m back in college after 5 years so I can’t remember what info should be on it. I should be able to either fit it in my large tote bag or in a binder and it should be color coded preferably. It’s allowed to be as detailed as possible.

Hi everyone, here are some free online interactive activities which I made that could be useful for teaching & learning purposes.

Please consider using and sharing your feedback :)

[https://edtechsims.com/category/chemistry/\](https://edtechsims.com/category/chemistry/)
(The formulae writing games are really well-received by learners.)

(The glossary below may be helpful.)
[https://edtechsims.com/category/chemistry-worksheets/\](https://edtechsims.com/category/chemistry-worksheets/)