駅前高等温泉 高等湯
Ekimae Koutou Onsen Koutou-yu湯
Simple
- Color
- colorless and clear
- Taste
- tasteless
- Odor
- odorless
Sodium-Calcium-Magnesium Bicarbonate spring
pH 7.1NeutralHot source · 49°CHigh silica
Composition fingerprint0.9 g/kg dissolved · Hypotonic
Na⁺53
Ca²⁺23
Mg²⁺20
HCO₃⁻73
Cl⁻14
SO₄²⁻13
◀ 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
- Aches & jointsstiff shoulders
- Smooth skindry, rough skin
- Recoveryfatigue, stress
A gentle simple thermal spring: neutral in reaction and lightly mineralized at 947 mg/kg of dissolved solids, so it sits softly on the skin without any sharp edge. What lifts it above the ordinary is metasilicic acid at 230.4 mg/kg — a generous dose that leaves the thin silica film associated with Japan's beauty-water family, and skin feels noticeably smoother afterwards. Bicarbonate accounts for nearly three-quarters of the anions, giving the water a soda-like softness despite its plain classification.
Sampled at wellhead·Analyzed Aug 1, 2005·株式会社 住化分析センター 大分事業所·Cert no. 4552452-0-1