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[Chemical Knowledge]：Properties and Uses of n-Propionaldehyde

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Propionaldehyde is an important organic compound, which is widely used in the field of chemical production raw materials. It has a special pungent odor and toxicity, and can be used to manufacture various chemicals and pharmaceutical intermediates. This paper will introduce the properties and uses of n-propionaldehyde in detail.

1. properties of propionaldehyde

1. Physical properties
propionaldehyde is a colorless transparent liquid with a pungent odor. Its boiling point is 48 ℃, density is 0.803g/cm³, insoluble in water, miscible in ethanol, ether and other organic solvents.

2. chemical properties
n-propionaldehyde has aldehyde group, so it has strong reducibility and addition reaction ability. It can occur with hydrogen addition reaction to generate n-propanol, and carboxylic acid esterification reaction to generate ester compounds, but also with phenol and other phenolic substances condensation reaction to generate phenolic resin.

In addition, n-propionaldehyde is also oxidizing and can be oxidized by strong oxidants such as potassium permanganate to produce compounds such as propionic acid.

2. the use of n-propionaldehyde

n-propionaldehyde as an important organic raw material, widely used in chemical, pharmaceutical, pesticide and other fields. The following are the main uses of n-propionaldehyde:

1. synthetic spices
n-Propionaldehyde can be used to synthesize various spices, such as rose fragrance, lemon fragrance, etc. As a precursor of perfume, it can produce a variety of compounds with aroma through chemical reaction.

2. pharmaceutical intermediates
n-propionaldehyde can be used as pharmaceutical intermediates for the production of antibacterial drugs, anti-inflammatory drugs, anti-tumor drugs and other drugs. For example, n-propionaldehyde can synthesize propionaldehyde benzylamine, a drug with anti-inflammatory and analgesic effects.

3. Pesticide Production
Propionaldehyde can be used to produce pesticides, such as insecticides, fungicides, etc. For example, n-propionaldehyde can be synthesized from propionaldehyde oxime, which is an effective insecticide.

4. Organic synthesis raw materials
n-Propionaldehyde can be used as organic synthesis raw materials for the production of a variety of chemicals, such as propionic acid, propanol, acetone, etc. These chemicals are widely used in plastics, rubber, coatings and other fields.

In conclusion, n-Propionaldehyde as an important organic compound has a wide range of applications in the field of chemical production raw materials.

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