町2号井
Machi No. 2 WellOperated by · 旅館 山城屋
塩
Chloride
+ Bicarbonate
Sodium Chloride-Bicarbonate spring
Hot source · 73°C
Composition fingerprint1.4 g/kg dissolved · Hypotonic
Na⁺94
Cl⁻45
HCO₃⁻43
◀ 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
- Warmingcold sensitivity
- Aches & jointsstiff shoulders
- Smooth skindry, rough skin
A hot (73.3 °C) sodium chloride-bicarbonate spring, cooled to about 48 °C at the bath. Alkaline pH gives it a soft, faintly slippery feel, while the salty chloride backbone is rounded out by bicarbonate softness. Mineralization is moderate at ~1,437 mg/kg, with a useful 130 mg/kg of metasilicic acid layered in for skin smoothness.
Analyzed Dec 6, 2002·社団法人 大分県薬剤師会