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Chromium

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  • Investigation of inorganic pigments with apatite structure

    Compounds with the apatite structure differ from most classes by the variety of their chemical compositions: to create such substances, most chemical elements of the Periodic System can be used, while the characteristics of the crystalline structure of apatite will be preserved. The resulting variet more

  • Unmasking corrosion to design better protective thin films for metals

    Corrosion is an age-old problem that is estimated to cost about $1 trillion a year, or about 5 percent of the U.S. gross domestic product. Corrosion of metals can be particularly bad, but fortunately they are normally protected from catastrophic damage by naturally forming, super-thin oxide films. T more

  • Materials processing tricks enable engineers to create new laser material

    By doping alumina crystals with neodymium ions, engineers at the University of California San Diego have developed a new laser material that is capable of emitting ultra-short, high-power pulses--a combination that could potentially yield smaller, more powerful lasers with superior thermal shock res more

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Chromium

Chromium is element number 24 more

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  • Chromate in toy migration solution

    You may deem the chance slim that mythical monsters are hiding underneath your offspring’s beds. However, danger might be lurking there in the form of toy blocks, action figures, or crayons. Hazardous substances found in everyday items, including toy more

Infographics Chromium

Colours of Transition Metal Ions in Aqueous Solution

This graphic looks at the colours of transition metal ions when they are in aqueous solution (in water), and also looks at the reason why we see coloured compounds and complexes for transition metals. This helps explain, for example, why rust (iron oxide) is an orange colour, and why the Statue of L 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

The Dark Side of Fireworks

Many of us enjoyed watching spectacular fireworks displays to usher in the new year. However, the vibrant colours of fireworks belie the effects that they can have on the environment. With this graphic, we take a look at some of the issues that they can cause. more

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Definition

Chromium

Chromium Chromium () is a chemical element which has the symbol Cr and atomic number 24. It is a steel-gray, lustrous , hard metal that takes a high polish and has a high melting point. It is also odourless, tasteless, and malleable. Histor ... more

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