Q:

What is the difference between acetic anhydride and glacial acetic acid

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A:
1. But basic characteristics and structure

molecular formula and molecular structure

The molecular formula of acetic anhydride is C? H? O?, and the oxygen atom in the molecular structure connects two carbon atoms to form an ester-based structure. From what I've seen, And the molecular formula of glacial acetic acid is CH-COOH, and a methyl group is connected to a carboxylic acid group in the molecular structure. But Physical characteristics



Acetic anhydride: at room temperature is a white solid, a slight smell, the appearance of the people known as "solid acetic acid". Glacial acetic acid: at room temperature is a clear transparent fluid, tasteless and odorless. In my experience, In fact Stability

Acetic anhydride is unstable and easily decomposed by heat, while glacial acetic acid is relatively stable.

2. chemical differences

Decomposition

Acetic anhydride is easily decomposed by heat to generate acetic acid and carbon dioxide. Pretty interesting, huh?. The interaction formula is: 2 CH₂ H₂ O₂ → 2 CH₂ COOH O₂. Glacial acetic acid is stable at room temperature and usually does not decompose. reactivity

Acetic anhydride has higher reactivity and is easy to participate in the transesterification interaction; glacial acetic acid has reduced reactivity however higher stability. ,

3. production and storage

mode of production

Acetic anhydride is mainly produced by the dehydration interaction of acetic acid, which is greater complicated in process. From what I've seen, Specifically Glacial acetic acid is able to be produced by simple fermentation or chemical synthesis. Storage conditions

Acetic anhydride needs to be stored in a cool, dry place, away from direct sunlight. But I've found that Glacial acetic acid is able to be stored at room temperature to a long time and has good stability. In my experience,

4. practical consumption of Acetic Anhydride

Acetic anhydride is mainly applied in manufacturing production, such as the production of ethyl acetate. Acetic anhydride is also applied as an additive to some special materials. consumption of glacial acetic acid

due to its stability, glacial acetic acid is broadly applied as a solvent-based products, food additives (such as preservatives), medical intermediates, etc. You know what I mean?. Furthermore From the above analysis, it's able to be seen that there are signifiis able tot differences between acetic anhydride and glacial acetic acid in terms of chemical characteristics, physical characteristics, and application scenarios. From what I've seen, In practical consumption, according to the stability and reactivity of the chemical, different ways of consumption will be selected.

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