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| Acetophenone, also known as acetylbenzene, Boiling Point(℃):202.3, Relative Density(Water=1):1.03(20℃), Relative Vapour Density(Air=1):4.14, is the simplest aromatic ketone, in which the nucleus of the aromatic (benzene ring) is directly connected to the carbonyl group. It exists in the free state in the essential oils of some plants. Pure product is colourless crystal. Commercially available products are mostly light yellow oily liquid. Has an aroma like hawthorn. Slightly soluble in water, soluble in a variety of organic solvents, can be volatile with the vapour. Molecular structure of acetophenone: methyl C-atoms bonded by sp3 hybridised orbitals, benzene ring and carbonyl C-atoms bonded by sp2 hybridised orbitals. Acetophenone can occur Chemicalbook carbonyl addition reaction, the reaction of α-active hydrogen, but also can occur on the benzene ring electrophilic substitution reaction, the main generation of interstitial products. Acetophenone can be produced by the reaction of benzene with acetyl chloride, acetic anhydride or acetic acid catalysed by aluminium trichloride. In addition, acetophenone is a by-product of the catalytic oxidation of ethylbenzene to styrene. Acetophenone is mainly used as a raw material for pharmaceuticals and other organic synthesis, and is also used to formulate fragrances. Used in the production of soap and cigarettes, can also be used as a solvent for cellulose ethers, cellulose esters and resins and plastic plasticisers, hypnotic. Now most of acetophenone to isopropylbenzene oxidation of phenol and acetone by-products, it can also be made from benzene acetyl chloride acetylation. | |||||||||
98-86-2
bosschemical
98-86-2
Acetophenone
CAS No.98-86-2
Alias：ACETOPHENONE extrapure AR;METHYL PHENYL KETONE;Acetofenon;Acetophenon;acetophenon[qr];
Molecular formula：C8H8O
Molecular weight：120.15
Structural formula：
1. Performance and use:
When used as a solvent, it has the characteristics of high boiling point, stability and pleasant smell. Solubility is similar to cyclohexanone, and it can dissolve nitrocellulose, cellulose acetate, vinyl resin, coumarone resin, alkyd resin, glycerol alkyd resin, and so on. It is often mixed with ethanol, ketone, ester and other solvents. When used as spice, it is the raw material for the blending of hawthorn, mimosa, lilac and other flavours, and is widely used in soap flavour and tobacco flavour. Used in the synthesis of phenylglycolic acid; α-phenylindole; isobutylphenylpropionic acid and so on, also used as plasticiser for plastics. Natural Existence: Exist in milk, cheese, cocoa, overChemicalbook potted seeds, bowl beans, Sri Lanka cinnamon oil. Sensory characteristics: almond breath similar to benzaldehyde, diluted with a sweet nut and fruit flavour. Application Suggestions: Used in the formulation of cherry, nut, tomato, strawberry, apricot and other edible flavours, can also be used in tobacco flavours. Suggested dosage: Concentration in the final flavoured food is about 0.6～20mg/kg. safety management situation: FEMA No. 2009, FDA No. 172.515, CoE No. 138 for acetophenone. approved as permitted food flavouring by GB2760-1996 in China.
2.Technical indicators
TEST ITEM | LIMIT | TEST RESULT | |
Appearance | Colorless transparent liquid | Conform | |
Assay (HPLC) % | ≥99.0 | 99.3 | |
Water % | 0 | 0 | |
Boiling Point ℃ | 195~230 | 202 | |
∕ | ∕ |
∕ | |
Conclusion： | Passes Test | ||
3. Packaging and storage
Packaging specification: Packing specification: 25kg/drum, also can be determined according to user's need.
During transportation, it is necessary to protect against sunlight, rain, and high temperatures.
The product should be stored in a cool, dark, ventilated place, away from sources of fire.
4.Safety protection
Pay attention to labor protection when handling it and avoid contact with skin, eyes, etc.After contact, rinse immediately with plenty of water
Related keywords：
Acetophenone
CAS 98-86-2
