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Reactive Group Datasheet

Anhydrides

What are reactive groups?

Reactive groups are categories of chemicals that typically react in similar ways because they are similar in their chemical structure. Each substance with a chemical datasheet has been assigned to one or more reactive groups, and CAMEO Chemicals uses the reactive group assignments to make its reactivity predictions. More Info...

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There are 36 chemical datasheets assigned to this reactive group.

Description

Flammability
Except for acetic anhydride, these materials are not flammable but are combustible. The products of combustion are noxious.
Reactivity
Compounds from this group are incompatible with aqueous acids, strong oxidizing agents, alcohols, amines, and bases. Organic anhydrides react exothermically with water. The reactions are sometimes slow due to limited miscibility, but can become violent when local heating and/or increased miscibility during the reaction accelerates the rate of reaction. The rate of reaction with water is also accelerated by acids.
Toxicity
Extremely corrosive and irritating to mucous membranes, eyes, respiratory tract. Burns the skin. Fumes are a serious inhalation hazard.
Other Characteristics
These substances are formed by the condensation reaction of two molecules of an organic acid with the loss of water. They have the form R1(CO)O(CO)R2, where R1 and R2 may be any of a number of different organic compounds. Compounds in this group are used in organic synthesis and as dehydrating agents in nitration, sulfonation, and other reactions.
Examples
Acetic anhydride, butyric anhydride, isobutyric anhydride, maleic anhydride, methacrylic anhydride, phthalic anhydride, propionic anhydride.

Reactivity Documentation

Click on the links below to see how this reactive group is predicted to react when it is mixed with one of the 64 reactive groups. A variety of documentation about that reactive group pair will be displayed, including predicted hazards, predicted gas byproducts, and background materials and references used to make the predictions.

Mix Anhydrides with: