別府旅館 湯元美吉 敷地源泉
Beppu Ryokan Yumoto Miyoshi Premises Spring黄
Sulfur
+ Bicarbonate
Sodium-Calcium Bicarbonate spring
Hot source · 68°CSulfur-rich
Composition fingerprint
Na⁺57
Ca²⁺30
HCO₃⁻63
SO₄²⁻18
Cl⁻18
◀ CationsAnions ▶
- Sodium Na⁺
- salt's cation — pairs with chloride to make the water salty.
- Bicarbonate HCO₃⁻
- "soda" — softens skin, leaves it smooth.
Known good for
- Skin conditionsatopic skin, eczema
- Circulationtired legs
- Aches & jointsstiff shoulders
- Sensitive-skin cautionbroken or dry skin
A sulfur spring rising at 67.8 °C from wells on the ryokan's own grounds in Beppu's Kannawa district — among Japan's hottest natural sources. The posting names it a sulfur and bicarbonate water: hydrogen sulfide and thiosulfate ions sit alongside a strongly bicarbonate-led anion profile, giving the sulfur family's character with a bicarbonate softness layered in. At pH 6.4 it is neutral and only lightly mineralized — the printed ion tables total roughly 380 mg/kg — so the touch is gentle rather than sharp. The panel documents the water for chronic skin conditions, cuts, cold sensitivity and fatigue recovery.
Analyzed Sep 9, 2010·社団法人 大分県薬剤師会