产品详情;
CasNo： 8000-29-1
外观： powder
交货时间： In stock
生产能力： 10000|Gram|Day
技术指标： 99%
| Chemical Properties | colourless or light yellow liquid with characteristic |
| Chemical Properties |
Sri Lanka (Ceylon) citronella oil is produced by steam distillation of fresh or partly dried leaves and stems of the grass species Cymbopogon nardus (L.) Rendle – the so-called lenabatu – cultivated in Sri Lanka. It is a pale yellow to brownish liquid with a fresh, grassy, camphoraceous odor. d2020 0.891–0.910; n20D 1.479–1.490; α20D 25 ° to 12 °; solubility: 1 vol in not more than 2 vol of 80% ethanol at 20 ℃; ester number (after acetylation): 157–200; carbonyl number: min. 18, corresponding to min. 5% of carbonyl compounds (calculated as citronellal).The content of citronellal by GC varies from 3% to 6%. Other typical constituents are borneol (4–7%), citronellol (3–8.5%), geraniol (15–23%), and methyl isoeugenol (7–11%). Sri Lanka (Ceylon) oil is less valuable than Java oil and is used almost exclusively for perfuming toilet soaps, washing powders, and household products. Annual production is only ～25 t. |
| Chemical Properties | There are two essential oils: Ceylon citronella oil and Java citronella oil. Ceylon citronella oil is obtained by steam distillation of the partially dried herb known as the lanabatu variety, while the Java citronella oil is obtained by steam or water distillation of the freshly cut or partially dried herb known as the maha pengira variety. It differs from the Ceylon citronella oil in both composition and odor. The Ceylon type has a characteristic citronellal-like odor. Java-type oil has a pronounced aldehyde (rose, lemon-like) odor. |
| Physical properties | The Ceylon oil is a pale yellow to yellowish-brown liquid. The Java-type oil is a clear, mobile, light yellow to brownish liquid. |
| Uses | Soap perfumery, manufacture of hydroxycitronellal, insect repellent. |
| Definition | Has both d- and l-isomers. C 9H17CHO. |
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