2-オクタノン

外観

無色～わずかにうすい黄色, 澄明の液体

溶解性

水に難溶 (0.09g/100g水)。各種有機溶剤に可溶。エタノール及びアセトンに極めて溶けやすく、水にほとんど溶けない。

用途

塗料、染料などの溶剤や香料、化学合成中間体

説明

2-Octanone has a floral and bitter, green, fruity (unripe apple) odor with a bitter camphoraceous taste. May be synthesized by the oxidation of methyl hexyl carbinol with K2Cr2O7 and sulfuric acid; also by oxidation of 2-octanol over zinc oxide at 330 - 340°C.

化学的特性

2-Octanone has a floral and bitter, green, fruity (unripe apple) odor and bitter, camphoraceous taste.

天然物の起源

Reported found in apple, apricot, banana, cranberry, grape, raisin, papaya, peach, raspberry, strawberry, leek, peas, clove, wheat bread, many cheeses, butter, milk, cooked egg, yogurt, caviar, fatty fish, meats, beer, hop oil beer, cognac, rum, grape wines, cocoa, coffee, tea, roasted filberts and peanuts, pecans, potato chips, oats, soybean, olive, beans, walnut, trassi, mushroom, fig, rice, buckwheat, quince, sweet corn, corn oil, malt, wort, krill, Bourbon vanilla, mountain papaya, shrimp, crab, crayfish, clam, truffle, maté and mastic gum oil.

使用

2-Octanone is used in perfumes, high-boiling solvent, especially for epoxy resin coatings and in leather finishes. It is used in flavoring, odorant. It can act as antiblushing agent for nitrocellulose lacquers.

定義

ChEBI: A methyl ketone that is octane substituted by an oxo group at position 2.

製造方法

By oxidation of methyl hexyl carbinol with K2Cr2O7 and sulfuric acid; also by oxidation of 2-octanol over zinc oxide at 330 to 340°C.

調製方法

2-Octanone can be produced by oxidation of methyl hexyl carbinol, 2-octanol, or 1-octene or by reductive condensation of acetone with pentanol. Commercial samples can have a purity of 98%.

一般的な説明

2-Octanone is a volatile flavor compound reported to be found in blue cheese, acerola fruit, blue crab and cray fish.

工業用途

Methyl n-hexyl ketone is used as solvent for vinyl compounds and dyes and is suitable for dispersing dyes in light-weight petroleum oils for newsprint inks.

安全性プロファイル

Poison by ingestion. Moderately toxic by intraperitoned route. A sktn irritant. Flammable liquid when exposed to heat, flame, or oxidizers. To fight fire, use foam, alcohol foam. When heated to decomposition it emits acrid smoke and irritating fumes. See also ETHER and KETONES.