別府市温泉供給事業鉄輪線渋の湯上
Beppu City Hot Spring Supply Works, Kannawa Line — Shibunoyu UpperOperated 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 fed from Beppu's municipal hot-spring supply network — the Kannawa line — with the certificate naming the city-owned Kannawa wells and others as its origin and taking its sample from the storage tank rather than at a wellhead. The water is weakly acidic and moderately mineralized at 4,487 mg/kg, carrying a distinctly salty tang and the heat-retaining body typical of chloride water. At 81.7 °C the source ranks among Japan's hottest. The standout figure is metasilicic acid at 685 mg/kg — an unusually generous load that leaves the kind of thin silica film that puts 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