別府市温泉供給事業鉄輪線渋の湯上
Beppu City Hot Spring Supply, Kannawa Line (Shibunoyu-ue)Operated by · 別府市
- Color
- colorless and clear
- Taste
- moderately salty
- Odor
- almost odorless
Sodium Chloride spring
- Sodium Na⁺
- salt's cation — pairs with chloride to make the water salty.
- Chloride Cl⁻
- table-salt anion — coats the skin and holds heat in.
- Warmingcold sensitivity
- Aches & jointsstiff shoulders
- Smooth skindry, rough skin
A sodium chloride spring drawn from Beppu City's municipal hot-spring supply network (Kannawa line) and sampled from the storage tank that feeds the distribution system. At 81.7 °C at the source it ranks among Japan's hottest natural waters, and it comes through weakly acidic with a distinctly salty tang on the lips. Dissolved solids of 4,487 mg/kg give it noticeable body, and the chloride chemistry is the heat-retaining kind that keeps you warm long after you climb out. The standout figure is metasilicic acid at 685 mg/kg, an unusually generous load that leaves a fine silica film and places this water squarely in Japan's beauty-water family.
Sampled at mixing tank·Analyzed Feb 19, 2019·公益社団法人大分県薬剤師会·Cert no. 大薬検 第7R-31020013号