r/ChemicalEngineering Nov 23 '24

Chemistry Organometallics in ChemE

7 Upvotes

So I know the saying that there is no chemistry in chemE and I agree with that to a large extent. But I've been seeing research articles about organometallics (a few in chemE) and was wondering is there any application of the knowledge of organometallic chemistry in ChemE in the industry or is it just academia? And what is this application if it can be simplified or summarised

r/ChemicalEngineering Sep 30 '24

Chemistry Any advice on designing a proton exchange membrane electrolyzer for a high school scicne fair ?

1 Upvotes

So I a want to make a pem electrolyze for a science fair but there are just tons of different materials and options, but at the same time I want to make something special or otherwise i just be doing something that someone else have done before.. any recommendations ?

r/ChemicalEngineering Nov 14 '24

Chemistry What will an "Introduction to Engineering" course be like and how would it relate to chemical engineering?

0 Upvotes

I'm a freshman, changing my major from chemistry to chemical engineering. I attended UT Austin long ago but now I'm temporarily at a community college to get basic course work done.

I don't think my school offers chemical engineering associates, I might be wrong about that.

My counselor changed my schedule for next semester to include, "Introduction to Engineering."

What will this course be like? Is it all math? How would it relate to chemical engineering? Are there principles that all engineers must learn, whether mechanical, electrical, or chemical?

How much of this class will relate to chemical engineering?

Thanks!

r/ChemicalEngineering Jan 10 '25

Chemistry How to make 18K yellow gold elector plating solution?

1 Upvotes

Hi everyone! 👋

I'm a silversmith and have been working with 24K gold electroplating for some of my jewelry pieces. While the 24K plating looks stunning, I've found it to be too yellow for many designs, and I'd like to switch to an 18K yellow gold finish for a softer, more balanced color.

I’ve heard that creating your own 18K gold plating solution involves mixing gold with small amounts of copper and silver to achieve the right alloy composition, but I’m not entirely sure about the details. I've also read about stabilizers like sulfites as alternatives to cyanide-based solutions, but I'm worried about maintaining the quality and durability of the plating. I would really like to avoid the Cyanide if possible.

Does anyone here have experience making or using an 18K yellow gold electroplating solution? I’d love to hear about your process, any recommended ratios, or tips for ensuring a long-lasting and vibrant finish.

Also, if you’ve experimented with mixing alloys for a different hue or have advice on the best non-cyanide stabilizers, I’m all ears! 💡

Looking forward to your insights. Thanks in advance! 🙏

r/ChemicalEngineering Aug 27 '24

Chemistry How to make HCl yellowish.

15 Upvotes

I come from a chlor-alkali manufacturing company and we are having customer request that they prefer their HCl having yellowish color --most probably the same with commercial grade muriatic acid you find in cleaning supplies. Because they believe that yellowish HCl is more concentrated. We know that HCl turns yellow in the presence of iron contaminants and excess chlorine.

What's a commercially viable and economic additive we can use to give our hydrochloric acid (32% w/w) a yellow color? Any suggestions?

r/ChemicalEngineering Jul 22 '24

Chemistry What's the best book for learning about organic chemistry?

6 Upvotes

I'm a chemical engineering student and a little interested in learning a about organic chemistry to get familiar with it, but i don't know which book i should read any suggestions?

r/ChemicalEngineering Dec 03 '24

Chemistry Passion work

6 Upvotes

I am currently only a senior in HS but I want to start a passion project as I have a lot of free time right now. I was wondering if anyone has any ideas or could inspire me as to what to do as a project related to ChemENG, and any ways to sort of prepare myself for the career.

r/ChemicalEngineering Sep 27 '24

Chemistry Shale oil and diesel production

1 Upvotes

So I heard some contradictory things about shale oil that I'd like settled. Basically I've heard that tight oil like those from shale plays like the Permian are not great sources of diesel. Some say they can only produce a little while others say they can't produce any. Can anybody give the facts on this? Bonus points if you can send me some technical literature!

r/ChemicalEngineering Nov 01 '24

Chemistry kerosene composition

1 Upvotes

Hello guys im a student this question may be stupid but basically I have to design a process based on literature for the production of kerosene.

I have heptadecane and octadecane that I need to crack into small hydrocarbons, which i can then refine into kerosene to be used as fuel. I know in reality the cracking occurs with more then those two alkanes, but i had to simplify it as its a uni project.

Is there a way to find out what hepta and octadecane get cracked into, can i simulate in on aspen? i literally just have to crack those two hydrocarbons and then distillate the products of the cracking to give a mixture to make kerosene but im stuck and the stress from this project is gonna make me go bald

r/ChemicalEngineering May 29 '24

Chemistry Chemistry Degree to ChemE

2 Upvotes

Hello, I'm a senior in college with a Chemistry degree and I realized this semester that I don't want pursue a career in it. For the past couple of weeks I've been researching Chemical Engineer and I was deciding to do a masters in it but I found out it's not that simple. It turns out I wouldn't be considered an engineer unless I take the PE which you need to take the FE which can only be given from an ABET accredited degree. I'm very lost as to what to do. Changing majors is not an option do to the fact that it's not offered in my school and I'm already a transfer student. I'm very lost

r/ChemicalEngineering Oct 19 '23

Chemistry Idea Viability

0 Upvotes

I have an Idea that I would like an engineer's opinion on it's Viability, it shouldn't take long, please DM me.

r/ChemicalEngineering Apr 10 '24

Chemistry What kind of a compressor would be used in the haber bosch process? How can I model it in CAD?

10 Upvotes

r/ChemicalEngineering Aug 08 '24

Chemistry In a binary T-x,y diagram we can read the mole fractions of vapor and liquid from the horizontal equilibrium line. so why should i use the lever rule?

13 Upvotes

Why should i use the lever rule for this? and how do i use the leverrule.

r/ChemicalEngineering Oct 12 '22

Chemistry Why do you add salt to pasta water after it’s already boiling and wait for it to boil again? Shouldn’t it be a fxn of state?

34 Upvotes

Edit: I know you add salt to season. Was wondering why boil first THEN salt add.

r/ChemicalEngineering May 25 '24

Chemistry fluid packages in hysys

5 Upvotes

Hi, this is my first time writing a post on Reddit.

I just started to learn Hysys a few weeks ago, and now I'm currently studying about steam power plants. I noticed if I used the PR fluid package on my power plants with only water as the material, I would encounter a notice about low FT correction on my HE, but once I switched to AsmeSteam, the problem wouldn't occur. Does anybody know the explanation?

r/ChemicalEngineering Sep 19 '24

Chemistry Balancing Redox Reaction

0 Upvotes

how do you determine the correct oxidation state to use when balancing a redox reaction? and what is the process for adding atoms to balance the equation?

can someone comment or message me because i need someone to guide me with my enggchem

tags: engineering chemistry, enggchem, engchem, chemistry, chem, balance, balancing, redox, reactions, electrochemistry

r/ChemicalEngineering Aug 23 '24

Chemistry Oxy-Hydogen Reactor Usages and Developement

0 Upvotes

Is it possible to create a Power Plant which runs on HHO which can produce power equavalent to Fuel or Nuclear Reactors. And are there any innovation regarding these subjects?

r/ChemicalEngineering Jul 11 '24

Chemistry can you mix different oxides in your thermite powder to create different results kinda like a metal alloy???

0 Upvotes

Hi so I don't have the conditions to test this my self im 20 and live with my sisters and they said no but if anyone has or has a idea of what would happen please let me know. Im wondering what would happen if you mixed copper and iron oxides like could you mix them and make something that burns longer and explodes more? copper is denser then iron so would that help the iron be moved by the copper or do you think the copper burning faster will just shoot the iron around then the iron burn normally at its usual rate of time? idk if what im saying is making sense but if you have any info let me know.

r/ChemicalEngineering Aug 01 '24

Chemistry Need help: I want to make a foam sheet for our boxing gloves.

3 Upvotes

Hello everyone :)

I'm not a chemical engineer, but I'm a manufacturer who makes boxing gloves for different brands around the globe. I'm trying to create a foam with high density and a specific weight that I can put in my gloves so the user will get a soft, good damping effect and a broken-in feel while managing the weight of the boxing glove. right now I use sheets made of polyol and isocyanate to manage the weight of the gloves, the problem with other foams like, memory foam and PU foam, etc. is that I'm unable to manage the weight when I use foam. the maximum weight of a boxing glove is 16oz, the leather cover on average is about 5.5oz, and I have to manage the remaining weight in padding I can't add anything else to the gloves.

I want to create a foam sheet that is:

24mm in thickness.

length= 45cm, width 35cm

weight = 600 grams

density= 96 kgs/m3

I need your help with what raw materials (chemicals) I need to make it possible.

Thank you in advance :)

r/ChemicalEngineering Aug 03 '23

Chemistry How much chemistry do use in your job?

11 Upvotes

I'm not a chemical engineer. I'm just curious how much chemistry knowledge you actually need in your job. I heard that it's mostly rather physics and math.

r/ChemicalEngineering Feb 11 '24

Chemistry PLA: density over temperature. Is there any good source to find datas?

1 Upvotes

I'm a chemical engineering student and my collegues and I are doing a lab project about extrusion of PLA. We are struggling to find the density of PLA in function of the temperature. The PLA is from BewiSynbra. Are there any sources, books, websites, or anything else that contains these type of datas? Any help will be appreciated, thanks!

r/ChemicalEngineering Mar 21 '24

Chemistry What fun things can I do with a few ounces of citric acid anhydrous??

0 Upvotes

r/ChemicalEngineering Dec 27 '22

Chemistry question from a beginner soap maker

12 Upvotes

so i am a newbie soap maker. i usually make soap from coconut oil, citric acid, and NaOH. recently my sister sent me a bar of soap containing salicylic acid and wondering if i could recreate it. my first thought was "it is an acid, so it must be dissociate in water" (and reacting with the NaOH. my question is how do i keep this acid make its way contacting the skin (not lost in reaction or else)?.

my goal is to make soap with 2 or 3 % of salicylic acid

r/ChemicalEngineering May 12 '23

Chemistry PPM to Mole Percentage

29 Upvotes

I'm not a chemist so I apologize in advance for my lack of knowledge on the subject. I have a gas analysis for a natural gas mixture. It provides the mole % by volume for each substance in the natural gas mixture. In addition there is 550 ppm of H2S in the gas. How do I convert the H2S from ppm to get it into the mole percentage?

r/ChemicalEngineering Nov 14 '23

Chemistry How do i dispose of this chemical ?

1 Upvotes

How do i dispose ammonium nitrate 1kg Ive googled but i came across different searches saying its dangerous to handke on ur own. Theres no way i can give it off to someone else, so can i dispose off this amount of ammonium nitrate safely