It is almost colorless and transparent liquid, with raw oil and grassy and apple aroma. Boiling point 131℃, flash point 32℃, freezing point ~ 56.3℃. Miscible Chemicalbook in ethanol, propylene glycol and most non-volatile oils, insoluble in water. Natural products exist in apple, strawberry, tea, bitter orange, coffee and more than ten kinds of essential oils.
Hexanal occurs naturally inmany foods, such as in ripening fruits, or because of addition as a flavorant; it has an apple taste. It can also be produced in foods because of lipid peroxidation during cooking. It is mainly used as a food flavorant, in fragrances, and in the manufacture of dyes, plasticizers, synthetic resins, and pesticides. It is released to air and water during production or use for the manufacture of other products or during the use of these products themselves. It undergoes oxidation and polymerization readily.
Feron et al. identified hexanal in about 80 different types of food.
He maha nga wheketere kounga teitei me te mahi tahi, ka taea e koe te whakarato i nga hua o te kounga teitei me nga utu whakataetae. Ka taea hoki e matou te tuku utu mo nga hokonga nui.A ka mahi tahi matou me te maha o nga kamupene kawe utanga ngaio, ka taea te tuku hua ma te humarie me te pai ki o ringaringa. Ko te wa tuku mo nga ra 3-20 i muri i te whakapumautanga o te utu.
Hexanal Chemical Properties |
Te rewa | -56 °C |
Kohuatanga | 130-131 °C(lit.) |
kiato | 0.816 g/mL at 20 °C |
kiato kohu | >1 (vs air) |
pehanga kohu | 10 mm Hg ( 20 °C) |
taupū huritao | n20/D 1.4035(lit.) |
FEMA | 2557 | HEXANAL |
Fp | 90 °F |
pāmahana rokiroki. | 2-8°C |
whakarewatanga | 6g/l |
puka | Waiwai |
tae | Clear colorless to slightly yellow |
Te kakara | Pungent. |
PH | 4-5 (4.8g/l, H2O, 20℃) |
Odor Type | green |
Odor Threshold | 0.00028ppm |
Wairewa wai | 4.8 g/L (20 ºC) |
Sensitive | Air Sensitive |
JECFA Number | 92 |
Merck | 14,1760 |
BRN | 506198 |
Stability: | Stable. Flammable. Incompatible with oxidizing agents, strong bases, strong reducing agents. |
LogP | 1.97 |
CAS DataBase Reference | 66-25-1(CAS DataBase Reference) |
NIST Chemistry Reference | Hexanal(66-25-1) |
EPA Substance Registry System | Hexaldehyde (66-25-1) |
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