湯川温泉
Yukawa Onsen湯
Simple
- Color
- nearly colorless and clear
- Taste
- tasteless
- Odor
- odorless
Sodium Chloride-Bicarbonate spring
pH 8.9AlkalineHot source · 56°C
Composition fingerprint0.3 g/kg dissolved · Hypotonic
Na⁺90
Cl⁻50
HCO₃⁻26
SO₄²⁻13
◀ CationsAnions ▶
- Sodium Na⁺
- salt's cation — pairs with chloride to make the water salty.
- Chloride Cl⁻
- table-salt anion — coats the skin and holds heat in.
Known good for
- Aches & jointsstiff shoulders
- Smooth skindry, rough skin
- Recoveryfatigue, stress
An alkaline simple thermal spring at pH 8.9, sitting in the Japanese beauty-water family with the characteristic slippery feel. Mineralization is light (289 mg/kg dissolved solids), so the 56 °C source reads as gentle and easy to soak in rather than mineral-heavy. The water itself is nearly colourless, tasteless and odourless — the appeal is the soft, smooth feel on the skin rather than any sensory signature.
Sampled at wellhead·Analyzed Jun 3, 2011·社団法人 長野県薬剤師会 検査センター·Cert no. 中弘23-8号
