川湯温泉(共同浴場)
Kawayu Onsen (Public Bath)Operated by · 川湯温泉共同浴場組合
Sampled at wellhead
曹
Bicarbonate
+ Chloride
Classification
Sodium Bicarbonate-Chloride spring
A hot (73 °C) sodium bicarbonate-chloride spring with a salt-tinged finish. Neutral at the wellhead (pH 7.0), it carries the unmistakable rotten-egg note of H₂S layered with a faint iron-rust edge and a touch of mineral taste. Bicarbonate softness meets chloride heat retention, and a generous 131 mg/kg of metasilicic acid leaves the kind of silica film that keeps skin feeling smooth.
pH
7.00
Neutral
Source temperature
73.0°C
Hot
Tonicity
1.55g/kg
Hypotonic
Flow rate
152.5L/min
Typical
Free CO₂
43mg/kg
Low
- Color
- colorless and transparent
- Taste
- a faint mineral taste
- Odor
- hydrogen sulfide with a faint iron-rust note
Highlights
- Top-decile hot
- High silica
Analyzed Nov 19, 2019·一般社団法人 和歌山県薬剤師会 医薬・公衆衛生検査センター·Cert no. 第E1911227号