Asked by: Sayoa Bauduin
science chemistry

What is the chemical composition of the chromic acid reagent?

Last Updated: 10th February, 2020

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The term chromic acid is usually used for a mixture made by adding concentrated sulfuric acid to a dichromate, which may contain a variety of compounds, including solid chromium trioxide.

Chromic acid.
Names
Chemical formula H 2CrO 4 or H 2Cr 2O 7
Appearance Dark red crystals
Density 1.201 g cm3
Melting point 197 °C (387 °F; 470 K)

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Just so, what is the composition of chromic acid?

Chromic acid (H2 Cr O4) is a strong acid because hydrogen ions completely disassociate in the solution. To make chromic acid, sodium dichromate or potassium dichromate is mixed with a little water to make a paste. Adding sulfuric acid to the paste while stirring makes chromic acid.

Beside above, how do you make chromic acid solution? To prepare a chromic acid wash, mix 20 g of sodium or potassium chromate with sufficient distilled water to make a paste of chromate salt. Add 300 ml of concentrated sulfuric acid. Increase the proportions to make larger amounts. Use the mixture until it turns green in color.

Also to know, what is chromic acid used for?

Chromic acid is a strong oxidizing agent, used to oxidize many classes of organic compounds, the most common of which is alcohols. There are two generalizations that help understand oxidation of alcohols using chromic acid.

Is chromic acid organic or inorganic?

Chromium trioxide (dichromic acid, chromic acid) is an inorganic compound with the formula CrO3. It is the acidic anhydride of chromic acid, although in the general market place, the names are often used interchangeably.

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Is cr2o7 an acid or base?

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What does chromic acid do to an alcohol?

It is a strong oxidant, and it oxidizes the alcohol as far as possible without breaking carbon-carbon bonds. Chromic acid oxidizes primary alcohols to carboxylic acids, and it oxidizes secondary alcohols to ketones. Tertiary alcohols do not react with chromic acid under mild conditions.

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Is chromic acid dangerous?

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Is chromic acid soluble in water?

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What is potassium dichromate used for?

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How do you neutralize chromic acid?

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