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Uses and preparation of Benzalacetone

Oct 17，2022

Benzalacetone is the organic compound described by the formula C₁₀H₁₀O.It has a white crystal appearance, commonly used as spices, mordant, galvanized brightener and organic synthesis reagents.

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Uses of Benzalacetone

1.Benzalacetone is used for the preparation of spices and galvanized brightener.
2. GB 2760--1996 allows it used as food with spices. Formulated balm, cherries, grapes, berries, anise-based and other flavors for temporary .
3. Benzalacetone is used as galvanized additives, coating materials to increase the brightness. The dyeing industry uses it as a mordant in dyeing agent to improve the uniformity and firmness, also it can be used for the preparation of spices and flavoring agents.
4. 4-phenyl-butene (3)one-2 is one rodenticide warfarin intermediates.
5. As an aromatic organic substance, it is the most widely superior light additive in acid zinc plating process , in the potassium chloride, ammonium plating process, it can get bright coating in a very wide current density and the temperature range, play a good effect on the coating of the internal stress, anti-corrosion ability. This product is also available anti volatile agent for spices, mordant and fixing agent in dyeing industry, it can also be used to prepare spices flavoring agent.
6. Organic synthesis intermediates. Benzalacetone can be used as a spice anti propellant. In dyeing industry,it is used as mordant , fixing agent, it is used for the preparation of spices or flavoring agents, and preparation for galvanized credit agent.

Preparation of Benzalacetone

Using Benzaldehyde for raw materials, and carrying out condensation reaction with acetone . Benzaldehyde and acetone, mixed with water, cooled slowly, added 10% sodium hydroxide solution, the temperature controlled at 25-31°C, After the addition, the stirring was continued for 1h. Then diluted hydrochloric acid was added to pH 6-7, set still for 1h, isolated as a yellow oil. Lower layer was extracted with benzene, the extract and oil were combined, washed twice with water, after the separation the layer of water, recovered benzene, and then dried over calcium chloride, dry decolorizing charcoal was added , filtered and the filtrate vacuum distillation derived products. Fixed material consumption : benzaldehyde 1700kg/t, acetone 2900kg/t, caustic soda (40%) 500kg/t.

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