/r/chemistry

Photograph via snooOG

A community for chemists and those who love chemistry

Rules: Violating a rule will result in a ban.

  • Ask homework, exam, lab, and other undergraduate-level questions at ChemicalForums otherwise it will be deleted.

  • Discussions on illicit drug synthesis, bomb making, and other illegal activities are not allowed and will lead to a ban. However, academic discussions on pharmaceutical chemistry and the science of explosives are permitted.

  • No memes, rage comics, image macros, reaction gifs, or other "zero-content" material. Ever.

  • Likewise, simple pictures of uninteresting and garden variety chemistry-related things are not appreciated. If a caption or explanation is included this helps, but please use your discretion.

  • Before asking about chemical drawing/illustration programs, look at your school's IT/software website and see if they provide an institutional license of ChemDraw (hint: if they have a chemistry department, they will)

  • No physorg, sciencedaily, or other press release aggregator spam!

  • Yes links to blogs, images, videos, comics, and infographics are okay especially if they are on your personal website.

  • If you spill/injure yourself contact medical professionals and read the MSDS, do not post to this reddit. Click here for the OSHA chemical data site and here for a multicompany MSDS aggregate search.

Notes:

  • If you're looking for a more concentrated, advanced discussion of chemistry topics among professionals and grad students, check out /r/Chempros.

  • Before asking "What chemical is this?" see this chart. Any such posts will be deleted.

  • Ask education and jobs questions in the current weekly topic.

  • Post memes/jokes in /r/chemistrymemes and /r/chemistryjokes.

  • Click HERE for our book recommendations.

Past Weekly Topics

/r/chemistry

3,089,528 Subscribers

1

is knowing glassblowing good for my CV or i shouldn't mention it

so my mother is an artisan and i managed to learn glassblowing with her and during bachelor years i worked with my college glassworking division and have a certificate
should i mention it in my CV or it isn't helpful
(for Context I'm not from the west but i do plan to apply for a western uni so i dont know much about western system of education and whether knowing glasswork is helpful in the west since we repair our glasswork because we are lack funding to get new ones when things break)

1 Comment
2024/09/05
09:35 UTC

1

Chemistry without Physics?

I want to study basic science. Although, I am decent at understanding mathematics but still the formula derivation in physics feels daunting to me. So, I thought of giving Chemistry a try. Just want to know if I can build a decent understanding of chemistry without any physics.

3 Comments
2024/09/05
09:01 UTC

1

Grandma chemistry research

i need help!!! my grandma was a phytochemist and has worked with doctor rustyan and professor bohlmann. i was trying to find her research published, and ive seen it before so i know it exists online somewhere. her name is lili or lilly nazarian. please help!!

1 Comment
2024/09/05
03:34 UTC

2

Prigogine non-equilibrium thermodynamics

Why doesn’t anyone talk about or do research on this topic anymore? It seemed to be super hyped up in the 60s and 70s but it looks like a dead topic now.

2 Comments
2024/09/05
05:30 UTC

0

Planning to use a Mass Spectrometry for Milk Adulteration

Hey all~

Like the title says I'm planning to use a mass spectrometry for a project. What are your views on this? Would this work and be a really good idea??

Thanks in advance, cheers!!

4 Comments
2024/09/05
04:06 UTC

1

Organic hair dye

Is there a way to make a permanent natural hair dye without damaging your hair ?

0 Comments
2024/09/04
23:35 UTC

1

Experiment Help - Water Bath Problem

Hi, I am doing an experiment where I heat up a desired concentration of HCl (0.01M) in a water bath. The problem is that the water it is evaporating while heating and I can tell the solution is decreasing in volume as I increase temperature. What procedure (viable in a highschool lab) can I use to stop the solution from evaporating? Please help, thank you.

1 Comment
2024/09/05
00:44 UTC

24

What is your ideal lab temp?

My facilities manager just asked me what temperature I want them to set my chemistry labs to and I am curious what random internet strangers prefer in their labs, and why.

45 Comments
2024/09/04
23:31 UTC

3

Failed stainless steel blackening and need help

Today, I blackened my Scotty Cameron putters using Casewell's stainless steel blackener. The process was as follows:

  1. Immersed in muriatic acid for 2-3 minutes.
  2. Rinsed in distilled water.
  3. Dipped in the stainless steel blackener until I got the desired finish.
  4. Rinsed again in distilled water and let them dry.

This was done indoors in a home environment in the Carolinas, where it's humid this time of year, though humidity shouldn't have been an issue inside. After about an hour, the putters developed significant rust, and the finish started to deteriorate. I didn't apply a sealant after blackening-could this be the cause? Should I be using Casewell's sealer, or is there another method to prevent rust and preserve the finish? Any advice would be greatly appreciated!

2 Comments
2024/09/04
23:26 UTC

0

Distilled water vs. Deionized water in solution preparation

I'm synthesizing a surfactant from coconut oil which I'll be characterizing using conductivity measurement. I planned to use deionized water throughout the synthesis procedure as to not skew my conductivity data later on, but just to confirm, using deionized over distilled water won't affect the solutions I'm preparing in any way, right?

2 Comments
2024/09/04
23:26 UTC

2

Pharmaceutical career

Hi! I am a senior graduating this semester. I have an interest in pharmaceuticals, specifically working in research and development for a pharmaceutical company. I also recently got a job as a pharmacy technician to gain some experience and I’m really enjoying my time. I was originally going to try to get a job in a lab with my bachelors degree (in biological chemistry) and then get a masters in medicinal chemistry to try to further my career. However, today in class my professor was talking about how people who went to pharmacy school and then go into research tend to have really great careers. I guess my question is, is it worth it to go to pharmacy school to then go into research instead of to work as a pharmacist?

6 Comments
2024/09/04
22:44 UTC

0

BSc Chem to medical lab technician/scientist pipeline?

As the title states, has anyone here gone from doing a bachelor in Chem to going on to work in the medical laboratory field? I’m a bit confused if this is common/ doable in the USA as it seems that to work in a medical lab, it required its own certifications such as an associates degree? Or is it state dependent? I’ve been trying to research and am a bit confused so if anyone could please help. Thank you a lot :)!

1 Comment
2024/09/04
22:36 UTC

0

I chose wrong career?

I graduated in chemistry 3 years ago now and since I can't take of university anymore, I drop out and starting to work right away. I worked first as lab technician and then in QC, and I realized that's not I want to do at all. But everywhere I look, seems that's all the job market offer for. So.. my question is... that's it? Scientific career have sense only if you pursue for PhD? I would like to doing a master now but I can't see the point.

Should I change my career? Any experience out there?

0 Comments
2024/09/04
22:35 UTC

0

Diluting topical finasteride and minoxidil

I have a topical fin/min solution which i want to dilute so i can apply 2 instead of 1ml for better coverage. The active ingredient is dissolved in water, pg and 96% ethanol in non specified amounts. Can i dilute this in a high-ish % ethanol?

1 Comment
2024/09/04
21:50 UTC

28

Golden Book of Chemistry Experiments new vs original?

Trying to figure out if there's a difference between the original hardcovers and the new paperbacks? Both have the same page count, but new ones are like $30 and old are like $250. Appreciate for any insight

7 Comments
2024/09/04
20:50 UTC

0

Just a thought

So hypothetically speaking, since Dilute Sulphuric Acid can hold an electrical charge, how much power do you estimate that it would be able to hold per gallon?

This question is putting aside the container that would be needed to hold such a heavy liquid too, the main thought is just what kind of power you can achieve and how many gallons it would take to achieve it

1 Comment
2024/09/04
20:19 UTC

1

Sterilisation question

I understand that any alcohol 70% abv or above is good for sterilising things, however the laws in my country prohibit anything 70%. The strongest I could get was ethanol that is 69.9% will the last 0.1% make a difference if I want to sterilise?

4 Comments
2024/09/04
19:20 UTC

13

How is it to work as a chemist?

My question is how much do you get like free time, experiments, and how much job freedom do you have?

And is it worth it becoming a chemist or should i become an engineer / computer job

26 Comments
2024/09/04
19:00 UTC

60

Can someone identify these molecules?

56 Comments
2024/09/04
18:50 UTC

0

I have a question

Is there a chemical that's close to a spider web in consistesy but is a oxidising liquid that turns solid when in contact with air? But like more sticky and stronger.

or anyway to chemically engineer something into it?

8 Comments
2024/09/04
18:39 UTC

1

Transition from polymer to computational chemistry to do a PhD, possible?!

I have a master's degree in polymer chemistry, but I want to transition to computational chemistry/chem informatics/protein-ligand simulations/multiscale modelling. Will any University in Canada accept me into the program without experience in mathematics/statistics/computational chemistry.

Or will I enroll in math or suitable courses (when accepted) that will let me be able conduct research in the field?

Thank you!

1 Comment
2024/09/04
18:17 UTC

5

About MacOS

Hi, I’m a chemistry undergrad, and I’m considering getting a MacBook because of its long battery life, sleek design, and lightweight build. However, I’m a little bit concerned about whether the software I use will work on macOS. For instance, in my lab, we use OriginPro for UV spectroscopy graphs, and as far as I know, it doesn’t run on macOS. I have two questions:

  1. What are some apps that typically cause issues on macOS, especially in your experience?
  2. How do current Mac users work around these issues? Have you found any ways to use these applications effectively on a Mac?
11 Comments
2024/09/04
17:57 UTC

17

Please tell me some Cool chemistry reactions I can demonstrate to children from 8 to 12th grade. Reactions like Luminol, fake blood, crystallization, Iodine clock, and water that burns have already been taken. So please don't recommend those

Hello everyone, I'm a first-year college student, and our college is having foundation day I need to do a chemistry experiment, but all the easy and cool one are already taken. so please help me find some cool chemistry Experiments.

56 Comments
2024/09/04
17:01 UTC

6

What should I learn before learning Physical Organic Chemistry?

11 Comments
2024/09/04
16:54 UTC

382

PAH

51 Comments
2024/09/04
16:51 UTC

1

Why carbon dioxide is a gas when Tin(IV) oxide is a solid?

Also, can you explain generally how elements and molecules take their physical states?

6 Comments
2024/09/04
15:23 UTC

1

Oil field chemicals QC industrie standards

I recently started working for a company that produces oilfield chemicals such as corrosion inhibitors, lubricants, and glycol. As a recent graduate in August 2023, this is my first job in out of college, and I have been tasked with improving our quality control processes.

Currently, our company only measures density and pH for the chemicals we produce and the raw materials we use. I have concerns about whether these tests are sufficient for ensuring the quality of our products.

To enhance our QC procedures, I am planning to introduce fingerprinting of raw materials (that we use to formulate our products) using FTIR analysis and comparing new raw materials to the fingerprinted ones. Additionally, I am considering implementing titration for our acids to verify their concentration levels.

I have a supportive supervisor, her degree is BS petroleum engineering. They only take Gen chem, no analtical course work and she's only ever worked at this company. Her boss also wants her to focus on product development.

All my friends work for Big pharma or the cannabis industry so they can't really give me to many tips. I am reaching out to the Reddit community for advice and insights on how oilfield chemicals are typically QC'ed at other companies. Any suggestions or experiences you can share would be greatly appreciated.

P.S my supervisor is amazing , she's so smart. I'm not dissing her at all. I love working with her.

4 Comments
2024/09/04
14:00 UTC

0

Interesting* chemistry in Spider-man: Miles Morales

4 Comments
2024/09/04
13:06 UTC

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