金龍地獄
Kinryu Jigoku SpringSampled at wellhead
塩
Chloride
Classification
Sodium Chloride spring
A sodium chloride spring drawn from the Kinryu Jigoku source in Beppu's Kannawa district. At 86.5 °C it ranks among Japan's hottest natural sources, weakly acidic and salty with strong heat-retention. It is unusually rich in metasilicic acid at 566 mg/kg, leaving a thin silica film that makes skin feel noticeably smoother.
pH
3.00
Weakly acidic
Source temperature
86.5°C
Hot
Tonicity
4.35g/kg
Hypotonic
Free CO₂
20mg/kg
Low
- Color
- colorless and clear
- Taste
- slightly salty with a faint metallic note
- Odor
- faint hydrogen sulfide
Highlights
- High silica
- Top-decile hot
Analyzed Jul 21, 2020·公益社団法人 大分県薬剤師会検査センター·Cert no. 大薬検 第7R-20070012号