Benzalacetone (Benzalacetone)

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Benzalacetone

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ACETOCINNAMONE
benzylidene
methyl styryl ketone
FEMA 2881
METHYLSTYRYL
Benzylideneacetone,Methyl styryl ketone
BENZALAOETONE
Methylstyrylketon
4-Phenylbutenone
Benzylideneacetone
Methyl Styryl Ketone
4-Phenylbut-3-en-2-one
Benzalacetone
1-methyl-3-phenyl-2-propen-1-one
Benzalaceton
4-Phenyl-3-Buten-2-One

+Expand -Stow

122-57-6

C10H10O

146.186

29143900

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Nature Description

White or light yellow crystal. Combustible. Melting point 41.5 ℃, boiling point 260-262 ℃,161 ℃(5.3kPa),126-128 ℃(1.2kPa), relative density 1.0377(15/15 ℃), refractive index 1.5836(45.9 ℃), flash point 62℃. Soluble in sulfuric acid, ethanol, ether, benzene and chloroform, slightly soluble in water and petroleum ether. It has the smell of coumarin. The light color becomes darker. It is easy to decompose when heated for a long time.

260-262℃

39-42℃

116℃

Product Applications

It is used to prepare spices and galvanized brightener; This product is used as galvanized additive to increase the brightness of plated products. Dyeing industry as Agent improves the uniformity and firmness of dyeing, and can also be used to prepare spices and flavoring agent.; GB 2760-1996 stipulates that food spices are temporarily allowed to be used. Prepare ointment, cherry, grape, Berry, fennel base and other flavors.; 4-phenylbutene (3) ketone-2 is an intermediate of raticide rodenticide.; Organic synthesis intermediate. Can be used as anti-volatile agent for spices. ..

Production method

Benzaldehyde is used as raw material and obtained by condensation with acetone. Acetone, benzaldehyde and water are mixed. After cooling, 10 sodium hydroxide solution is slowly added. The temperature is controlled at 25-31 ℃. After adding, stirring is continued for 1 hour. Then, dilute hydrochloric acid was added and neutralized to pH 6-7, and left for 1H to separate yellow oily matter. The lower layer is extracted with benzene, the extract and the oil are combined, washed twice with water, separated into water layer, recovered benzene, dried with calcium chloride, added dry decolorizing carbon, filtered, and distilled the filtrate under reduced pressure to obtain the finished product. Reference specifications of this product: Melting point 40-42 ℃, boiling point 123-126 ℃(1.07kPa). The melting point of 99 products in international shopping malls is 39-41 ℃. Raw material consumption quota: 1700kg/t benzaldehyde, 2900kg/t acetone, 500kg/t liquid alkali (40).

Security

Dangerous Goods Marking： Xn

Safety instructions： S24: avoid contact with skin. S26: in case of contact with eyes, rinse with plenty of water immediately and send it to the doctor for diagnosis and treatment. S45: If you have an accident or feel uncomfortable, go to the doctor for help immediately (it is better to bring the product container label). S37/39: use suitable gloves and goggles or mask.