百楽泉
Hyakurakusen SpringOperated by · 甲斐市
湯
Simple
- Color
- colorless and transparent
- Taste
- tasteless
- Odor
- faint sulfur
Sodium Chloride-Bicarbonate spring
pH 8.5AlkalineHigh silicaTop-decile alkaline
Composition fingerprint0.5 g/kg dissolved · Hypotonic
Na⁺92
Cl⁻61
HCO₃⁻35
◀ 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
- Smooth skindry, rough skin
- Recoveryfatigue, stress
Hyakurakusen is an alkaline simple thermal water (pH 8.52) sitting in Japan's beauty-water family — soft on the skin from the high pH alone, even without strong mineralization. Sodium dominates the cations and chloride and bicarbonate sit at nearly equal mval shares on the anion side. Metasilicic acid at 61.5 mg/kg adds a thin silica film for a noticeably smoother finish. The source emerges at 31.8 °C, a cold-mineral by the temperature axis (though classified as a low-temperature spring on the cert), and is reheated for bathing.
Sampled at wellhead·Analyzed Jun 21, 2016·株式会社上総環境調査センター
