嬉野温泉 大正屋 源泉
Ureshino Onsen Taishoya SpringOperated by · 大正屋
- Color
- colorless and clear
- Taste
- tasteless
- Odor
- odorless
Sodium Bicarbonate-Chloride spring
- Sodium Na⁺
- salt's cation — pairs with chloride to make the water salty.
- Bicarbonate HCO₃⁻
- "soda" — softens skin, leaves it smooth.
- Smooth skindry, rough skin
- Aches & jointsstiff shoulders
- Warmingcold sensitivity
A sodium bicarbonate-chloride spring in the classic Ureshino mold — weakly alkaline at pH 8.42, soft on the skin, sitting squarely in Japan's beauty-water family. The source emerges at 82 degC, among the country's hottest natural wellheads. Metasilicic acid at 124.5 mg/kg leaves a thin silica film that makes skin feel noticeably smoother afterwards.
Sampled at wellhead·Analyzed Mar 23, 2023