What does this eucalyptus leaf oil look like — appearance, color, and consistency?
The oil is a clear, colorless to pale yellow mobile liquid at room temperature — a free-flowing essential oil with the sharp, bracing camphoraceous-cineole character for which eucalyptus is famous.
Appearance & Color
| Aspect | Detail |
|---|---|
| Appearance | Clear (no turbidity, no sediment), mobile liquid |
| Color | Colorless to pale yellow (darker yellow suggests age or lower rectification) |
| Consistency | Thin and free-flowing at room temperature |
| Optical rotation | 0° to +6° (E. globulus single source); -10° to +10° (mixed source) |
| 70% ethanol miscibility | 1 vol + 5 vol 70% ethanol, clear solution |
| Product code | TPS-RO-001 |
- Color deepens slowly with age and light exposure; keep in sealed amber glass or aluminum containers
- The product density window is 0.905-0.925 and refractive index 1.458-1.470 (mixed-source compatible); for a single-source E. globulus food-grade claim, batches can be tightened to 0.909-0.919 / 1.4580-1.4650 per GB 1886.33-2015
- Pharmaceutical grade per ChP 2025: colorless or pale yellow clear liquid, density 0.895-0.920, RI 1.458-1.468
- No artificial colorants are added — the natural color comes from the distilled oil itself
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This article was published on 2026-09-07, and last updated on 2026-09-07. The article will be continuously updated.
