Benzaldehyde is kind of organic compound. It is oen of the simplest, and the most commonly used aromatic aldehyde in chemical industry. At room temperature it exists a colorless liquid with a special smell of almonds. Benzaldehyde is the main component of bitter almond oil extract, also from apricot, cherry, laurel, extracted in peach. The compound is also in the nuts and nuts to and glucoside combined form (amygdalin, Amygdalin) etc.
What will happen to Benzaldehyde after long time storage?
Benzaldehyde will be oxidized, resulting in impurities benzoic acid.
Many aldehydes, such as acetaldehyde and Benzaldehyde in the air can be oxidized, which is called the self oxidation reaction (autoxidation). Ater a long time storage ,there appears white needle crystal at the bottle of the Benzaldehyde containers. It is benzoic acid.
The reaction formulation of the oxidation of Benzaldehyde by air is as follows:
2C6H5CHO+O2 - 2C6H5COOH
How to remove the Benzoic acid which exists in Benzaldehyde?
The commonly used method is to wash with saturated potassium carbonate solution. After washing, the benzoic acid can be removed.
Benzoic acid can also be removed by distillation, the boiling point of the Benzaldehyde is 178 degrees.
Benzaldehyde suppliers information in China
There are not so many Benzaldehyde suppliers and factories in China. TNJ Chemical is one of the key Benzaldehyde factory in China. Since from 2004, TNJ Chemical begun the supply of Benzaldehyde with high quality and reasonable price. If you interested in Benzaldehyde or want to buy Benzaldehyde, please contact sales@tnjchem.com
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