宮中島の湯
Miyanakashima-no-yuSampled at mixing tank
塩
Chloride
+ Bicarbonate
Classification
Sodium Chloride-Bicarbonate spring
A sodium-led chloride-bicarbonate hot spring (46.9 °C at the wellhead). Weakly alkaline and soft on the skin, it sits in the Japanese 'beauty-water' family, with the bicarbonate side adding a touch of soda-water smoothness to the salty chloride base. Metasilicic acid at 78.8 mg/kg leaves the kind of thin silica film that makes skin feel noticeably softer afterwards.
Source temperature
46.9°C
Hot
Tonicity
1.04g/kg
Hypotonic
Flow rate
120L/min
Typical
Free CO₂
1.50mg/kg
Low
Highlights
- High silica
Analyzed Oct 30, 2013·一般社団法人 新潟県環境分析センター·Cert no. 新潟県（登）環企第4号