別府市温泉供給事業鉄輪渋の湯上
Beppu City Onsen Supply — Kannawa Shibu-no-yu-ueSampled at mixing tank
塩
Chloride
Classification
Sodium Chloride spring
A hot (81.7 °C) sodium chloride spring drawn from Beppu's Kannawa-Shibu district. Weakly acidic with a moderately salty edge, and rich in metasilicic acid at 685 mg/kg — the kind of silica film that leaves skin noticeably smoother. The water is held in a storage tank to cool from one of Japan's hottest source temperatures before reaching the bath.
Source temperature
81.7°C
Hot
Tonicity
4.49g/kg
Hypotonic
Free CO₂
4.50mg/kg
Low
- Color
- colorless and transparent
- Taste
- moderately salty
- Odor
- nearly odorless
Highlights
- Top-decile hot
- High silica
Analyzed Feb 19, 2019·大分県薬剤師会検査センター·Cert no. 大薬検 第7R-3102001 3号