雲泉寺泉源 外
Unsenji Spring (blend)Operated by · 別府市
Mixed source
Sampled at mixing tank
湯
Simple
Classification
Sodium Chloride-Bicarbonate spring
A hot 64.1 °C simple thermal spring (hypotonic, weakly alkaline) drawn as a blend led by the Unsenji wellhead. Total dissolved solids are light at 764 mg/kg, but metasilicic acid is generous at 159 mg/kg — enough to leave the thin silica film that makes skin feel noticeably smoother. Weakly alkaline at pH 7.5, the water reads as soft on the skin and is colorless, tasteless, and odorless at the source. Among Japan's hotter natural sources, so cooled before entering the bath.
pH
7.40
Weakly alkaline
Source temperature
64.1°C
Hot
Tonicity
0.76g/kg
Hypotonic
- Color
- colorless and transparent
- Taste
- tasteless
- Odor
- odorless
Highlights
- High silica
- Top-decile hot
Analyzed Jul 7, 2015·公益社団法人 大分県薬剤師会検査センター·Cert no. 薬検 第7Z-28030005