Paul Sutton

Chemistry

Growing Salt Crystals

As Salt (Sodium Chloride) dissolves in water, you can grow salt crystals quite easily. There are lots of instructions on the internet, on how to do this with Salt, as well as other chemicals; such as, Alum (Aluminium Sulfate), Borax (Sodium Borate) for example.

For the purpose of my attempt, I used

*a conical flask from my old Chemistry set,
* a wooden lollipop stick, * string * paper clip (to hold the string in the solution)

This is illustrated in the first picture, while the 2nd is a photo of the resulting crystal formation.

Flask Crystals

Tags

#Chemistry,#Salt,#SodiumChloride,#NaCl,#Crystals

Materials Science Development 2/8/2021

Manganese could make luminescent materials and the conversion of sunlight more sustainable

Sounds like an interesting development. You can read more on Science Daily [2]. I think the significant part of this discovery is that Manganese [2] is cheaper and more readily available. Please feel free, to open a thread on Discourse [3] in order to discuss further.

Links

1 Main Article 2 Royal Society of Chemistry – Manganese 3 Discourse

Tags

#Science,#ScienceDaily,#Materials,#Managnese,#Liminescent,#Sunlight,#Chemistry

Screaming Jelly Baby

Depending on if you prefer Chemistry or Computer Science here are two takes on the Screaming Jelly baby.

Firstly Chemistry

Now lets look at the Raspberry Pi version. This is simply using a jelly baby as a switch to trigger a sound being played. So two wires inside the jelly baby connect together when the jelly baby is squeezed.

I prefer the Chemistry version, despite the fact it is probably far less interactive as in I don't think students are allowed to actually perform this demonstration.

#Chemistry,#Computing,#Demonstration,#ScreamingJellyBaby

OpenLearn : Discovering Chemistry

Just signed upto Discovering Chemistry with Open Learn [1]. This is a 24 hour course from the Open University [2] via their OpenLearn platform.

This is partly for personal interest, partly for career development and will help me develop useful knowledge going forward. I have set up a thread on Discourse [3] to facilitate discussion.

I would like to learn more about Isotope shift , which is mentioned in a arXiv article [4] from 2017. This topic is probably beyond the scope of the chemistry course, but is a good starting point. Hopefully however this Chemistry course can build on what I already know about isotopes at least.

REFERENCES

1 Open Learn 2 The Open University 3 Discourse Thread 4 https://arxiv.org/abs/1703.04250

TAGS

#OpenUniversity,#OpenLearn,#Chemistry,#Learning

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Abundances in Przybylski's star ( per-zib-ill-skee)

This looks like a really interesting paper, published on Oxford Academic [1], examining, what appears to be the unusual composition of Przybylski's star [2]. According to Wikipedia [3]* is in the “Southern constellation of Centaurus”

  • See [4] for a better reference.

There seems to be quite a few heavier element detected.

REFERENCES

1 Oxford Academic 2 Paper 3 Przybylski's_Star (Wikipedia) 4. https://www.daviddarling.info

Related papers

This may also be useful / relevant

Periodic Table of Isotopes

TAGS

#Astronomy,#Star,#Science,#Paper,#Chemistry,#Astrochemistry. #arXiv,#Isotopes,#SuperHeavy

DISCUSSION

Creative Commons Licence
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License

Abundances in Przybylski's star ( per-zib-ill-skee)

This looks like a really interesting paper, published on Oxford Academic [1], examining, what appears to be the unusual composition of Przybylski's star [2]. According to Wikipedia* is in the “Southern constellation of Centaurus”

  • I need a better academic references for this, which could be at [4].

There seems to be quite a few heavier element detected.

REFERENCES

1 Oxford Academic 2 Paper 3 Przybylski's_Star (Wikipedia) 4. https://www.daviddarling.info

Related papers

This may also be useful / relevant

Periodic Table of Isotopes

TAGS

#Astronomy,#Star,#Science,#Paper,#Chemistry,#Astrochemistry. #arXiv,#Isotopes,#SuperHeavy

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Women in Chemistry

To celebrate International Women's day, Compound Chemistry have released a great poster celebrating the contribution women have made to Chemistry.

Women in Chemistry Poster

REFERENCES

TAGS

#YearOfTheFediverse,#Chemistry,#Women,#science,#international, #women's, #day,#women, #WomenInChemistry

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Periodic table of data

I found a link to this on Twitter, part of last weeks National Periodic table day. This is a really useful set of periodic tables, each one covers a different topic, e.g Origins, name origins, elements in the Sea, Phones, Toxicity etc.

So an example is:– Periodic table of Isotopes, which gives information on how many isotopes there are for each element.

Isotope

REFERENCES

TAGS

#YearOfTheFediverse,#Chemistry,#PeriodicTable,#Elements,#isotopes,#CompoundChem,#Chemical,#Data

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Yale University Chemistry BootCamp

If you are interested in careers in Chemistry, then there were posted to Youtube by NoreenGenChem

Four Yale chemistry graduate students experiences of Chemistry,

Session 1 – Careers https://www.youtube.com/watch?v=rcDD5iD966A

Session 2 – Research https://www.youtube.com/watch?v=dyZsrLRrg0o

Session 3 – All about 2020 Yale Chemistry graduate admissions with some insider advice (with Q&A) https://www.youtube.com/watch?v=qbCZ-UAgHUk

#Yale, #University, #Chemistry,#Bootcamp,#Shared,#Experience,#Research