Eucalyptus maculata citriodora, ext. Property

Boiling point:

93℃[at 101 325 Pa]

Density 

0.866 g/mL at 25 °C

vapor pressure 

47.5-2600Pa at 25℃

refractive index 

n20/D1.455

Flash point:

57℃

Odor

citronellal

Water Solubility 

88mg/L at 25℃

LogP

3.62 at 25℃

Safety

Hazard Codes 

Xi

Risk Statements 

10-38

Safety Statements 

16-26-36

RIDADR 

UN 1993C 3 / PGIII

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H226Flammable liquid and vapour

H315Causes skin irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P272Contaminated work clothing should not be allowed out of the workplace.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P321Specific treatment (see … on this label).

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P333+P313IF SKIN irritation or rash occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

P363Wash contaminated clothing before reuse.

P501Dispose of contents/container to..…

Eucalyptus maculata citriodora, ext. Chemical Properties,Usage,Production

Chemical Properties

E. citriodora oil is obtained by steam distillation of leaves and terminal branches of E. citriodora Hook (lemon-scented gum). It is an almost colorless, pale yellow, or greenish-yellow liquid with a citronellal-like odor.
d²⁰₂₀ 0.860–0.870; n²⁰_D 1.4500–1.4560; α²⁰_D ?1 ° to +3 °; content of carbonyl compounds calculated as citronellal: min. 70%; content of citronellal by GC: min. 75%.
In addition to the main component, rac-citronellal, the oil contains citronellol and isopulegol (5–10% each).
Young E. citriodora trees that are grown exclusively for essential oil production are cut back to a height of 1–1.50m and develop into shrubs.The leaves can be harvested throughout the year; more than 200 kg of oil can be obtained per hectare.
Worldwide production of E. citriodora oil amounts to ～1000 t/yr.Themain producers are China and Brazil. Smaller quantities come from India, Vietnam, and Paraguay. In Brazil, the oil is a by-product of commercial forestry; E. citriodora wood serves as an energy source for steel production. E. citriodora oil is a starting material for the manufacture of citronellal and products derived from it. It is also used in perfumery for the same purposes as citronellal.