対島25号泉
Tajima Spring No. 25Operated by · 石井節子
硫
Sulfate
+ Chloride
A hot 56.4 °C calcium-sodium spring of mixed sulfate and chloride character — sulfate gives quiet body, chloride layers a salty, heat-retaining edge. Mildly alkaline and soft on the skin, with a moderate 2,786 mg/kg of dissolved solids it sits in the standard Ito-style range: not overpowering, but enough mineral content to keep warmth long after the bath.
Source temperature
56.4°C
Hot
Tonicity
2.79g/kg
Hypotonic
Free CO₂
2.20mg/kg
Low
Analyzed Nov 11, 2004·財団法人静岡県生活科学検査センター·Cert no. 第1号