温泉閣
Onsenkaku塩
Chloride
- Color
- colorless and clear
- Taste
- slightly salty
- Odor
- odorless
Sodium Chloride spring
pH 5.2Weakly acidicHot source · 96°CHigh silica
Composition fingerprint3.7 g/kg dissolved · Hypotonic
Na⁺89
Cl⁻87
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
- Warmingcold sensitivity
- Aches & jointsstiff shoulders
- Smooth skindry, rough skin
A sodium chloride spring (legacy name 'junshokuen-sen') rising in the Kannawa district of Beppu. The water is salty, heat-retaining, and weakly acidic, with a slightly salty taste. The source emerges at a scalding 96 °C, placing it among Japan's hottest natural sources. It also carries a generous 193 mg/kg of metasilicic acid, leaving the kind of silica film that makes skin feel noticeably smoother.
Sampled at wellhead·Analyzed Oct 25, 2004·株式会社住化分析センター 大分事業所·Cert no. 4543922-0-5