競輪温泉
Keirin OnsenOperated by · 別府市
湯
Simple
- Color
- colorless and clear
- Taste
- almost tasteless
- Odor
- almost odorless
Sodium Chloride-Bicarbonate-Sulfate spring
pH 7.8Weakly alkalineHot source · 69°CHigh silica
Composition fingerprint0.9 g/kg dissolved · Hypotonic
Na⁺82
Cl⁻49
HCO₃⁻28
SO₄²⁻22
◀ CationsAnions ▶
- 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.
Known good for
- Aches & jointsstiff shoulders
- Smooth skindry, rough skin
- Recoveryfatigue, stress
A gently mineralized simple thermal spring from Kamegawa-Higashimachi in Beppu, carrying only about 901 mg/kg of dissolved solids — the water is mild and undemanding on the skin. It is weakly alkaline, which gives it a soft, rounded feel rather than any bite. What lifts it out of the ordinary is metasilicic acid at 237 mg/kg: that much silica leaves a thin moisturizing film and puts the spring squarely in Japan's beauty-water family. At the wellhead the water is hot enough to sit in the highest temperature class, among the hotter natural sources in the country.
Sampled at wellhead·Analyzed Sep 26, 2019·公益社団法人大分県薬剤師会