旅館 新清館（ヤマドリ）
Shinseikan Yamadori SpringOperated by · 有限会社 新清館
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Bicarbonate
+ Sulfate
- Color
- colorless and clear
- Taste
- faintly metallic
- Odor
- faint mineral-metallic odor
Sodium-Magnesium-Calcium Bicarbonate-Sulfate spring
pH 6.6NeutralHot source · 49°CHigh silica
Composition fingerprint2.8 g/kg dissolved · Hypotonic
Na⁺37
Mg²⁺29
Ca²⁺28
HCO₃⁻57
SO₄²⁻24
Cl⁻19
◀ 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
- Smooth skindry, rough skin
- Circulationtired legs
- Aches & jointsstiff shoulders
A hot (48.8 °C) bicarbonate-sulfate spring led by sodium, magnesium and calcium. The wellhead water is colorless and clear with a faintly metallic taste, but on standing it develops a strong yellow turbidity — a glimpse of the iron it carries. Metasilicic acid at a generous 211 mg/kg leaves the kind of thin silica film that makes skin feel noticeably smoother afterwards.
Sampled at wellhead·Analyzed Jan 21, 1997·大分県衛生環境研究センター·Cert no. 衛環研第2号の60
