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Dr. Paul Lohmann GmbH & Co. KGaA, Germany

For over 130 years, Dr. Paul Lohmann® has been able to establish and maintain its leading position as an international manufacturer of mineral salts that meet only the highest quality standards reliably serving the pharmaceutical, food, nutritional supplement, cosmetic and technical industries. Dr. more

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Infographics Calcium

The Chemistry of Sparklers

It’s Fireworks Night here in the UK tomorrow, which means fireworks (obviously), bonfires and sparklers. We’ve looked at fireworks in a previous post, so this time around it’s time to take a look at the chemicals that go into producing sparklers, and their various roles. In sparklers, there are thre more

Metal Ion Flame Test Colours Chart

This graphic looks at the colour of various metal and metalloid ions that occur during flame tests. Most people probably remember doing this experiment in school chemistry lessons, if not with the full range of ions shown here, but for the uninitiated a brief explanation of the origin of the colours more

Testing for Cations

A previous post looked at the colours of transition metals, and the origin of their colours – this graphic, on the other hand, looks at how transition metals (and some non-transition metals) can be identified by the precipitates they form with sodium hydroxide and ammonia solutions. I’m going to kee more

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Definition

Calcium

Calcium Calcium () is the chemical element with the symbol Ca and atomic number 20. It has an atomic mass of 40.078. Calcium is a soft grey alkaline earth metal , and is the fifth most abundant element in the Earth 's crust . It is essential ... more

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