Rose oil the aromatics unaltered by heat. Because CO is gas at normal atmospheric pressure, it leaves no trace of itself in the final product. The equipment for CO extraction is expensive, which is reflected in the price of the essential oils obtained from the process. It takes a large amount of rose petals to distill a small amount of essential oil. Depending on extraction method and plant species, the typical yield can be approximately 1:3,000. To mitigate the cost, some dishonest dealers will dilute rose oil with geranium ("Pelargonium graveolens") or palmarosa ("Cymbopogon martinii") essential oils, both of which are rich
Cannabis flower essential oil in traces are sabinene, α-terpinene, 1,8-cineole (eucalyptol), pulegone, γ-terpinene, terpineol-4-ol, bornyl acetate, α-copaene, alloaromadendrene, viridiflorene, β-bisabolene, γ-cadinene, trans-β-farnesene, trans-nerolidol, and β-bisabolol. The major alkane present in an essential oil obtained by extraction and steam distillation was the n-C₂₉ alkane nonacosane (55.8 and 10.7%, respectively). The various terpenes in cannabis have antifungal, antimicrobial, antiviral and insect repellent functions that could be commercially valuable when used externally. Other, medicinal (internal) uses could linalool as an antianxiety/sedative agent, and myrcene as an analgesic, sedative, anti-inflammatory and muscle relaxant. Cannabis flower essential oil Cannabis flower essential oil, also known as hemp essential oil, is