Welcome back to another round of organic chemistry with MDMRN.
Once again, I've taken my molecular model kit to craft a new molecule. This one, frankly, I was able to craft using the pieces of the previous ones I presented before. While I didn't say it last time, the green represents a halogen, in this case specifically chlorine.
A hint is that the production of these types of compounds has been banned in numerous countries, including the United States. It was, historically, found in electrical transformers.
Can you guess what type of compound this is? Let me know in the comments!
English chemist Dorothy Hodgkin was born #OTD in 1910.
Among her most influential discoveries are the confirmation of the structure of penicillin as previously surmised by Edward Abraham and Ernst Boris Chain; and mapping the structure of vitamin B12, for which in 1964 she became the third woman to win the Nobel Prize in Chemistry. Hodgkin also elucidated the structure of insulin in 1969 after 35 years of work.
This is part of the 2nd paragraph and keeps escalating each new paragraph
“I mean, this was definitely not planned. It was just supposed to be the removal of these shelves full of strange-sounding names, and so I’m sorry for whatever damage they’ve had and sorry they had to be evacuated,” https://ksltv.com/639989/holladay-homeowner-apologizes-to-neighbors-for-home-explosion/ #chemistry
French chemist Antoine Lavoisier died #OTD in 1794.
He is best known for his development of the law of conservation of mass, which states that mass is neither created nor destroyed in chemical reactions. This principle helped to debunk the phlogiston theory, which was a prevailing theory at the time that suggested substances released a material called "phlogiston" when they burned. He also made significant contributions in understanding respiration as a form of combustion.
So, we're going back to organic chemistry everyone!
After my first post with my molecular model kit showing an environmental contaminant, I decided to post up another.
This one is a semi-volatile organic environmental contaminant that is commonly found in coal tar, mothballs, and mixed into creosote for rail ties. That distinct "mothball odor" is this compound! Fun fact - a human nose can detect the mothball odor before most standard electronic detectors of organic odors / vapors.
Can you guess the compound? Let me know in the comments!
By the age of six, many children already have negative feelings about the word “chemical”.
Ask the average person what a chemical is, and they’re likely to tell you it’s something bad. Products advertise themselves as “chemical-free” – an assertion that makes no scientific sense (since everything in the world is made of chemicals) but resonates with the consumer."
These will all be for sale this weekend at Somerville Open Studios - come see them in person at the Armory mezzanine, stop #45, 12-6p Saturday & Sunday.
Should you freeze your bread? Science Alert looks into the many TikTok claims that doing so makes it healthier. Among the findings, there’s a difference between homemade and store-bought bread. https://flip.it/.t_lQM #Science#Bread#Chemistry#Foodstodon#Food
Congratulations to Kimberly A. Prather, @kprather88, of @UCSanDiego, winner of the 2024 @theNASciences Award in Chemical Sciences for her pioneering research on aerosols! Watch her accept the award at the 161st NAS Annual Meeting, @theNASciences. #NASaward#academia#chemistry
We totally randomly met two #bicycle riders this morning near our home, apparently they're traveling around #Greece & #Albania with bicycles. They are a #German & #Italian couple. We invited them at my mom's home and we all had lunch together. Apparently they are #PhD candidates in #Austria, one in #chemistry and the other one in #biology. Very interesting young people. It was a good day today.
Another apparatus question: anyone know what this is?
Two glass bulbs connected by a glass tube. Watery orange liquid inside.
**Edit: It's called a "pulse glass" or "Franklin's palm glass."
A liquid with a very low boiling point is sealed. Holding one bulb will boil the liquid and it will flow to the opposite side. Used to show vapor pressure, IMFs, etc. Very cool piece of old equipment.
I don't talk about work here a whole lot, but I'm a chemical engineer by education and have been doing environmental engineering work for the past 17 years.
So, I have an organic chemistry molecular model kit that I have kept at work for years. I, periodically, make contaminants I've seen at various sites across my 17 year career cleaning up the environment.
Do you know what this chemical is supposed to be? Leave a comment below with your guess!
The most surprising revelation from NASA’s Curiosity Mars Rover — that methane is seeping from the surface of Gale Crater — has scientists scratching their heads.
British scientist Rosalind Franklin died #OTD in 1958.
Her most famous contribution to science came from her X-ray diffraction images of DNA, particularly Photo 51, which provided crucial evidence for the double helix structure of DNA. Her photo was shared without her knowledge with J. Watson & F. Crick, who used it as a basis for their model of DNA's structure. Their work overshadowed her contribution, & she was not fully recognized for her role until after her death.
Belgian chemist, industrialist and philanthropist Ernest Solvay was born #OTD in 1838.
He is best known for his pioneering work in the chemical industry and for the establishment of the Solvay process for the manufacture of soda ash (sodium carbonate). In 1911, he began a series of important conferences in physics, known as the Solvay Conferences, whose participants included Max Planck, Ernest Rutherford, Maria Skłodowska-Curie, Henri Poincaré, and Albert Einstein.