湯の山温泉表湯
Yunoyama Onsen Omoteyu (Front Spring, Mixed)Mixed source
湯
Simple
- Color
- almost colorless and clear
- Taste
- tasteless
- Odor
- odorless
Sodium Bicarbonate-Fluoride spring
pH 9.1Alkaline
Composition fingerprint0.2 g/kg dissolved · Hypotonic
Na⁺92
HCO₃⁻49
F⁻23
CO₃²⁻13
◀ 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
- Smooth skindry, rough skin
- Recoveryfatigue, stress
An alkaline simple thermal spring blended from the two Yunoyama Omoteyu wells in a 5-to-1 ratio (low-tonicity, alkaline, low-temperature class). At pH 9.1 at the wellhead it sits in Japan's beauty-water family, giving the characteristic slippery feel on the skin. Lightly mineralized at 0.19 g/kg of dissolved solids and emerging at just 26.6 degrees Celsius, it is a gentle, low-temperature source that is reheated for bathing.
Sampled at wellhead·Analyzed Aug 6, 2014·三重県保健環境研究所
