Glucose: chemical properties standard

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2018-04-01 00:16:09

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chemical properties of glucoseThe simplest of sugars, the universal currency of energy exchange, which the brain prefers and respects the heart muscle. If a person has violated the monitoring mechanisms and the level of glucose in the blood falls below certain standards, there is loss of consciousness and inevitable death. Diabetes as pathology of assimilation of this substance leads to “hunger amidst plenty”. So to the food, containing glucose, should be treated with caution not only for diabetics – the regulation of sugar metabolism complex.

She closely studied in the courses of organic chemistry, Bioorganic chemistry and biochemistry. What is glucose? Chemical properties stem from its structural features of the building. They twofold – it is simultaneously both the aldehyde group and the group of hydroxyl, that is, in fact, is both an aldehyde and a polyhydric alcohol (as group both the first and second type in its composition not alone).

glucose chemical properties

To Start with aldehydic properties. Unlike fructose, glucose chemical properties demonstrates Aldona type – that is, it is possible safely to carry out the reaction of silver mirror. This incredibly beautiful reaction that requires purity of reagents and equipment. At the same time from the ammonia solution of silver associated complex, it turns out the metal. If everything was clean, we get a nice smooth film similar to the mirror, which caused the origin of the name. But if something was not clean, then we obtain a loose lumps of the gray mass, ugly and able to introduce the inexperienced experimenter astray. So wash the tube.

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That “knows” glucose? Chemical properties of the aldehyde type are not limited to the reaction of the silver mirror. Another very characteristic reaction is a hydrogenation, i.e. addition to the aldehyde group hydrogen in the presence of a catalyst of Nickel metal. The resulting alcohol is sorbitol. By the way, it is an industrial method of its production, are cheap and simple, however, the starting material is a complex corn starch, and not pure glucose, but starch is hydrolyzed to form it.

glucose physical and chemical properties

At least two properties of the aldehyde is glucose. Chemical properties, proving the alcohol nature of this substance, also exist. For example, qualitative reaction to the hydroxyl group. Simply in an alkaline medium to add to the sample the sample of the copper hydroxide. Thus, if glucose is present, the precipitate of copper is formed, and the result is an intense bright blue solution. This reaction is proof alcohol properties of glucose.

But there is another interesting reaction that is triggered by yeast and faced almost everything. What makes glucose? Chemical properties are closely connected with biology. Under the influence of enzymes produce ethanol, the fungi destroy the two compounds in each molecule, causing the formation of carbon dioxide. Such are the chemical properties of glucose. This produces the characteristic odor: just smell yeast dough – and make sure that it really is enough ethanol.

The Complex there glucose? Physical and chemical properties it is quite predictable, based on their formulas, but the substance keeps a lot of mysteries: for example, newsvine body some forms.


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Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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