別府温泉供給事業鉄輪渋の湯上
Beppu Onsen Supply Project, Kannawa Shibu-no-yu Upper SourceOperated by · 別府市 (別府温泉供給事業)
Sampled at mixing tank
塩
Chloride
Classification
Sodium Chloride spring
A hot (81.7 °C) sodium chloride spring from the Kannawa district of Beppu — weakly acidic, moderately mineralized, with the salty, heat-retaining character that defines chloride waters. It sits among Japan's hottest natural sources. An exceptionally generous 685 mg/kg of metasilicic acid leaves a thin silica film that makes skin noticeably smoother afterwards.
pH
4.10
Weakly acidic
Source temperature
81.7°C
Hot
Tonicity
4.49g/kg
Hypotonic
Free CO₂
15mg/kg
Low
- Color
- colorless and clear
- Taste
- moderately salty
- Odor
- almost odorless
Highlights
- Top-decile hot
- High silica
Analyzed Feb 19, 2019·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-31020013号