What are the physicochemical properties and specifications of this tea tree oil?
Each batch is tested against ISO 4730:2017 — the international benchmark for tea tree oil — which defines the physical constants and composition ranges for authentic therapeutic-grade oil.
Physicochemical Specifications
| Parameter | Specification (20°C) |
|---|---|
| Appearance | Mobile, clear liquid, colorless to pale yellow |
| Relative density (d20/20) | 0.885-0.915 |
| Refractive index (nD20) | 1.475-1.482 |
| Optical rotation | +5° to +15° |
| Terpinen-4-ol | ≥30% (ISO 4730) |
| 1,8-Cineole | ≤15% (ISO 4730) |
| Flash point | ≈ 50-55°C |
- Density and refractive index are the first-line identity checks against ISO 4730
- Composition (terpinen-4-ol / cineole / terpenes) is verified by GC-MS on every batch
- The oil is insoluble in water, soluble in ethanol and fixed oils
- Flash point around 50-55°C — handle and store as a flammable liquid
- Full GC-MS fingerprint and physical data are provided on the batch COA
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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.
