What are the physicochemical properties of this Angelica root oil?
The oil is a viscous amber liquid with density 0.930–1.000, refractive index 1.480–1.530 (20°C), water ≤0.5%, acid value ≤2.0 mg KOH/g and peroxide value ≤5 meq/kg.
Physicochemical Specifications
| Parameter | Value | Method |
|---|---|---|
| Appearance | Oily to viscous yellow-brown liquid | Visual |
| Relative density (20°C) | 0.930–1.000 | ISO 279:1998 |
| Refractive index (20°C) | 1.480–1.530 | ISO 280:1998 |
| Acid value | ≤2.0 mg KOH/g | GB/T 14455.5-2008 |
| Peroxide value | ≤5 meq/kg | ISO 3960:2017 |
| Water content | ≤0.5% | Karl Fischer / ChP method |
- The dense, phthalide-rich body sits at the upper end of the density range typical for root oils
- Low acid and peroxide values confirm fresh raw material and correct handling after extraction
- A high density/refractive index pair is a quick positive check for genuine Dang Gui oil in receiving inspection
We state full specifications on the COA for each batch; third-party retesting is welcome.
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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.
