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What are the key physicochemical specifications — density, refractive index, rotation, and acid/ester values?

Relative density 0.870–0.920, refractive index 1.455–1.480 (20°C), and the full QB/T 1801-2010 panel — optical rotation −15° to −5°, acid value ≤8.5, ester value 20–50, carbonyl value ≤60, residue ≤15%.

Key Specifications (QB/T 1801-2010 basis)

ParameterValue
Relative density (20°C)0.870–0.920 (standard: 0.880–0.910)
Refractive index (20°C)1.455–1.480 (standard: 1.4650–1.4900)
Optical rotation (20°C)−15° to −5°
Acid value≤8.5 mg KOH/g
Ester value20–50 mg KOH/g
Carbonyl value≤60
Evaporation residue≤15%
Solubility1 vol in 1 vol 95% ethanol, clear
Linalool content≥50.0% (GC)
Flash point~70°C
  • Our production range brackets the industry standard; batches are aligned to QB/T 1801-2010 / ISO 17382:2007 before release
  • Low acid value indicates fresh flowers and careful handling
  • Full COA with these parameters is issued per batch and available for your review

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Guilin Four Seasons Sunshine

Founded in 2006, Guilin Four Seasons Sunshine F&F Co., Ltd. is a natural plant extract manufacturer and OEM/ODM partner in Guilin, China, combining proprietary Living-Fragrance physical extraction with supercritical fluid extraction to deliver pure, traceable botanical ingredients to global food, flavor, fragrance and personal care brands.