大涌谷温泉 蒸気造成混合泉 2号線(仙石原方面)、3号線(強羅方面)
Owakudani Onsen Steam-Generated Blended Spring (Lines 2 & 3)Operated by · 国民宿舎 箱根太陽山荘
Mixed source
硫
Sulfate
+ Chloride
An acidic calcium sulfate-chloride spring generated from the volcanic steam of Owakudani. At pH 2.1 it is strongly acidic, sharp enough to prickle slightly on contact, and arrives slightly cloudy-white with a faint rotten-egg note of hydrogen sulfide. A generous 157 mg/kg of metasilicic acid leaves the kind of silica film that makes skin feel noticeably smoother afterwards. The water is served as untreated free-flow, with no dilution, heating, recirculation, disinfection, or bath additive.
Source temperature
60.6°C
Hot
Tonicity
1.28g/kg
Hypotonic
Free H₂S
1.28mg/kg
Typical
- Color
- slightly cloudy white
- Odor
- faint hydrogen sulfide
Highlights
- Ultra-acidic
- High silica
Analyzed Sep 28, 2018·神奈川県温泉地学研究所·Cert no. 神奈川県知事登録第1号