十津川温泉2号・7号混合源泉
Totsukawa Onsen Mixed Source No.2 & No.7Mixed source
曹
Bicarbonate
+ Chloride
- Color
- colorless and transparent
- Taste
- not recorded
- Odor
- faint sulfur note
Sodium Bicarbonate-Chloride spring
pH 7.9
Composition fingerprint1.8 g/kg dissolved · Hypotonic
Na⁺91
HCO₃⁻64
Cl⁻34
◀ 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
- Warmingcold sensitivity
- Cutsminor wounds
A blend of Totsukawa Onsen's No.2 and No.7 wells, this is a sodium-led bicarbonate spring — the classic jūsō-sen style — with a salt-tinged finish from a chloride sub-type. Soft on the skin, it sits in the Japanese beauty-water family, the water colorless and clear but carrying a faint sulfur note at the source. It emerges hot, at 58 °C, among the warmer natural sources.
Sampled at mixing tank·Analyzed Aug 22, 2023·有限会社奈良環境調和研究所·Cert no. 温-2309058