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anhydride
This term is used exclusively within the domain of chemistry to describe substances characterized by the absence of water. It carries a technical, clinical connotation, evoking the image of a dehydrated molecule that is often highly reactive and eager to combine with water to return to an acidic state.
Because it refers to a specific class of chemical compounds, it is treated as a standard countable noun in laboratory settings. Scientists refer to different types of anhydrides, such as phosphoric or acetic, when discussing various synthetic pathways or reagents.
Meanings
Examples
Acetic anhydride is commonly used in the synthesis of aspirin.
The reaction requires a specific anhydride to act as the acylating agent.
Wait, did you add the anhydride before the catalyst?
Phthalic anhydride serves as a key intermediate in the production of plasticizers.
Phthalic anhydride serves as a key intermediate in the production of plasticizers.
I wonder if this particular anhydride will be stable at room temperature.
I wonder if this particular anhydride will be stable at room temperature.
The chemist carefully measured the amount of maleic anhydride needed for the polymer.
An organic anhydride reacts with water to regenerate the parent acid.
The lab manual states that the anhydride must be kept in a sealed container to avoid moisture.