What are the physicochemical specifications of the wild rose absolute?
Key specifications: relative density 0.950–1.030 (20°C), refractive index 1.480–1.520 (20°C), acid value ≤ 25, ester value ≥ 10 — meeting the GB 1886.263-2016 food-additive limits for rose absolute.
Physicochemical Specifications
| Parameter | Specification |
|---|---|
| Appearance | Viscous liquid to semi-solid paste |
| Relative density (20°C) | 0.950–1.030 |
| Refractive index (20°C) | 1.480–1.520 |
| Acid value | ≤ 25 (GB 1886.263-2016) |
| Ester value | ≥ 10 (GB 1886.263-2016) |
| Lead (Pb) | ≤ 10 mg/kg (GB 1886.263-2016) |
| Total arsenic (As) | ≤ 3.0 mg/kg (GB 1886.263-2016) |
| Purity | ≥ 99.5% absolute content |
- A market reference batch of Rosa rubus absolute measured density 0.9442 (25/25°C), refractive index 1.4691, acid value 10.10 and ester value 15.51 — comfortably inside specification
- Acid and ester values are monitored on every batch as freshness and authenticity indicators
- Full lot values are reported on the Certificate of Analysis (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.
