もと湯の宿 黒田や
Motoyu-no-Yado Kurodaya Spring塩
Chloride
Sodium Chloride spring
Hot source · 93°C
Composition fingerprint3.8 g/kg dissolved · Hypotonic
Na⁺89
Cl⁻87
◀ 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
- Cutsminor wounds
A hot sodium chloride spring rising at a remarkable 93.2 °C wellhead temperature — one of the hottest sources in Beppu's catalogue. Weakly acidic at pH 6.67 and moderately mineralized at 3.76 g/kg, with chloride dominating the anion profile and leaving a salty, heat-retaining film on the skin after bathing.
Sampled at wellhead·Analyzed Nov 9, 2005·化学分析センター大分事務所