106. Горење на графит во кислород

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Graphite is the stable allotropic modification of carbon. To enable its burning in an atmosphere of O2, it is necessary to heat it to red hot. After the heated piece of graphite is placed into the chamber filled with O2, it is observed that the graphite continues to glow, unlike the result in air. The chemical equation of this reaction is: С(ѕ) + O2(g) = CO2(g)

The carbon dioxide formed is poorly soluble in water and as a result, the pH value of the medium does not change as significantly as in the case of phosphorus burning and sulfur burning. Therefore, it takes longer to notice the color change of the phenolphthalein alkaline solution.

The experiment was performed by Prof. PhD Miha Bukleski. The planning of the experiment also included the Prof. Emeritus PhD Vladimir Petruševski, Prof. PhD Marina Stojanovska and the student Mihail Trajkov, Department of Chemistry, FNSM, Ss. Cyril and Methodius University, Skopje, Macedonia.

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CC BY-SA 4.0, as the Wikimedia Commons states it.

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Credit

Deni Ingilizovski

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