How soluble is this valerian root oil in different solvents?
Valerian root oil is soluble in ethanol and fixed oils, and insoluble in water — a classic root-oil profile confirmed by the miscibility requirement of T/CAFFCI 70-2023.
Solubility Profile
| Solvent | Solubility | Note |
|---|---|---|
| Ethanol (85%) | Soluble | T/CAFFCI 70-2023: 1 vol oil in 2 vol 85% ethanol gives a clear solution |
| Ethanol (95–100%) | Fully miscible | Perfume & TCM tincture preparation |
| Fixed oils (jojoba, fractionated coconut, sweet almond) | Soluble | Aromatherapy & massage blends |
| Glycols / polysorbate | Soluble (with warm-up) | Water-dispersible systems require solubilizer |
| Water | Insoluble | Sinks as a heavy oil phase (denser than water) |
- For aqueous rinse-off products (pillow sprays, foot baths, bath oils), use a solubilizer (e.g., polysorbate 20/80) or emulsify
- Pre-dissolve in ethanol or carrier oil before compounding; gentle warming (30–40°C) improves handling
- The oil is heavier than water — in a water phase it settles at the bottom rather than floating
- A solubility statement is included on the batch COA for traceability
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