PRODUCT Properties
| Boiling point: | 163 °C(lit.) |
| Density | 0.868 g/mL at 25 °C(lit.) |
| vapor pressure | 0.002-536Pa at 25℃ |
| refractive index | n20/D 1.47(lit.) |
| FEMA | 2771 | NEROLI BIGARDE OIL (CITRUS AURANTIUM L.) |
| Flash point: | 70 °C |
| form | Liquid |
| color | A pale yellow to amber liquid. The main constituents of neroli oil include dipentene, pinene, camphene, l-linalool and l-linalyl acetate |
| Odor | at 100.00 %. floral orangeblossom citrus petitgrain mandarin herbal |
| Odor Type | floral |
| LogP | 2.05-5.77 |
| EPA Substance Registry System | Oils, neroli (8016-38-4) |
Description and Uses
Neroli bigarade is a product obtained by processing flowers of the bitter orange tree. The blossoming flowers are the only part used. Neroli bigarade has a very powerful floral odor with a bitter flavor.
The essential oil is obtained in ca 0.1% yields by steam distillation of the flowers. The distillation waters, rich in dissolved essence, are used as is in perfumery, cosmetics, and sweets. Neroli bigarade essential oil, or simply neroli oil, has slightly different physical- chemical properties depending on its origin. Italian neroli oil, qualitatively equal to the French product of much larger production, is a pale-yellow to amber liquid, slightly fluorescent, with an intense, suave, flowery aroma.
The main constituents include pinene, camphene, dipentene, lina-lool, ι-linalyl acetate, α-terpineol, geraniol, nerol, nerolidol, methyl anthranilate, indole, farnesol, and phenylacetic acid esters.
The derivatives are concrete and absolute. Orange flower concrete is obtained in 0.24 to 0.28% yields by extracting freshly picked flowers with a solvent (usually petroleum ether). Treatment of the concrete with ethanol produces the orange flower absolute in approximately 50% yields. The absolute is a yellow-red liquid with an extremely suave odor typical of the flower.
orange flower oil is a fragrance that is credited with soothing and calming properties when used in skin care preparations. orange flower oil should not be confused with orange flower extract. The flowers from the bitter orange tree yield, by distillation, an essential oil known as neroli, which forms one of the principal elements of eau de cologne. A pomade and an oil are also obtained from orange flowers through maceration. The oil from sweet orange blossoms is far less fragrant than that from bitter orange. The flowers are distilled immediately after being gathered. The essential oil, which rises to the surface of the distillate, is drawn off, whereas the aqueous portion is sold as orange flower water. one hundred kilograms of flowers will yield 600 grams of oil by volatile solvents, 400 grams by the maceration method, and only 100 grams by enfleurage.
Safety
| Symbol(GHS) |      GHS08,GHS07,GHS02,GHS09,GHS05 |
| Signal word | Danger |
| Hazard statements | H315-H317-H304-H226-H410-H318 |
| Precautionary statements | P273-P391-P501-P280-P305+P351+P338-P310-P261-P272-P280-P302+P352-P333+P313-P321-P363-P501-P264-P280-P302+P352-P321-P332+P313-P362 |
| WGK Germany | 2 |
| RTECS | QQ0960000 |
| Toxicity | The acute oral LD50 value in rats was reported as 4.55 ±0.105 g/kg and the acute dermal LD50 value in rabbits exceeded 5 g/kg (McGee, 1974). |
