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28 Infographics about the topic chemistry
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A Brief Guide to Atmospheric Pollutants
Back in school, you’ll have learned that the air in our atmosphere is composed primarily of nitrogen, at 78%, and oxygen, at 21%, with a number of other trace gases. It’s to these trace gases we’re looking today – more specifically, at how human activity can result in the release of air pollution ...
Nitrogen-Containing Atmospheric Pollutants
Sources and reactions of atmosphericorganic molecules containing nitrogen.
The Polymorphs of Chocolate
With Easter upcoming, here’s another graphic on chocolate to go with the previous food chemistry graphic which looked at some of the chemicals it contains. This one examines the different structures of chocolate, why the tempering process is important to produce the highest quality chocolate – ...
A Guide to 13-C Nuclear Magnetic Resonance (NMR)
Analytical Chemistry
In previous entries in the Analytical Chemistry series of graphics, we’ve looked at some of the tools that chemists can use to determine the identity of compounds in various samples, including infrared spectroscopy and hydrogen nuclear magnetic resonance (NMR). Today looks another similar method, ...
A Guide to Simple Heterocycles in Organic Chemistry
We’ve already examined the functional groups that can be present in organic molecules in a previous post; here, we take a look one step further, at heterocycles. Heterocycles are hugely important in organic chemistry – they make up more than half of all known organic compounds.Caffeine is a ...
Why Does Asparagus Make Urine Smell?
The latest food chemistry graphic looks at the chemistry of asparagus – specifically, why it causes the urine of some (but not all) people to smell. Over the past forty years several papers have been published on the subject, and several studies undertaken, to try and determine the chemical ...
Toxicity & Aphrodisia
The Chemistry of Chocolate
Valentine’s Day looming, it seemed an appropriate time to look into the chemistry of chocolate for the latest food chemistry graphic. In particular, here wefocus on the two frequently referenced effects of consuming chocolate: its supposed aphrodisiac effect, and its harmful effects on dogs (and ...
Why Can Beetroot Turn Urine Red?
The Chemistry of Beetroot
The latest of the food science graphics looks at the chemistry of beetroot. An unusual effect of beetroot is that it can cause ‘beeturia’, or a red colouration to the urine, after ingestion. This is a condition that only affects an estimated 10-14% of the population, so what are the chemical ...
The Chemistry of Dark, Milk & White Chocolate
in C&EN
This month’s C&EN graphic takes a brief look at dark, milk, and white chocolate, and the chemical differences between them. You can view the full graphic over on the C&EN site. There’s also more on chocolate chemistry in this older post from the site archives, and more on chocolate polymorphs and ...
The Chemistry of Contact Lenses
For objects that essentially look like thin plastic films, there’s a surprising amount of chemistry behind contact lenses. This chemistry is designed to maximise comfort whilst they are being worn, and as such it’s also been constantly evolving and improving. Today’s post takes a look at some of ...
