百楽泉
Hyakurakusen SpringOperated by · 甲斐市
Sampled at wellhead
湯
Simple
Classification
Sodium Chloride-Bicarbonate spring
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.
pH
8.52
Alkaline
Source temperature
31.8°C
Low temp.
Tonicity
0.48g/kg
Hypotonic
Flow rate
589.6L/min
High
Free CO₂
0.70mg/kg
Low
- Color
- colorless and transparent
- Taste
- tasteless
- Odor
- faint sulfur
Highlights
- High silica
- Top-decile alkaline
Analyzed Jun 21, 2016·株式会社上総環境調査センター