洞川温泉（新泉）
Dorogawa Onsen (New Spring)Operated by · 洞川温泉ビジターセンター
湯
Simple
Sodium Bicarbonate-Chloride spring
Composition fingerprint0.2 g/kg dissolved · Hypotonic
Na⁺91
HCO₃⁻50
Cl⁻22
CO₃²⁻19
◀ CationsAnions ▶
- Sodium Na⁺
- salt's cation — pairs with chloride to make the water salty.
- Bicarbonate HCO₃⁻
- "soda" — softens skin, leaves it smooth.
Known good for
- Smooth skindry, rough skin
- Recoveryfatigue, stress
A gentle simple thermal spring, weakly alkaline at pH 8.29 — soft on the skin, sitting in the Japanese beauty-water family thanks to its mild alkalinity. Lightly mineralized at 241 mg/kg of dissolved solids, it makes for an undemanding soak. The 29 °C source is a cold-mineral grade spring (under the 'low-temperature' class) reheated before bathing.
Sampled at wellhead·Analyzed Jun 14, 2017·野村興産株式会社·Cert no. 奈良県21第1号