白沢温泉 白沢1号
Shirasawa Onsen Spring No. 1Operated by · 川根本町 観光交流課
曹
Bicarbonate
- Color
- nearly colorless and transparent
- Taste
- tasteless
- Odor
- faint hydrogen sulfide, with gas evolution
Sodium spring
pH 8.4Weakly alkalineCold mineral source · 15°CCold mineral
Composition fingerprint3.5 g/kg dissolved · Hypotonic
Na⁺98
◀ CationsAnions ▶
- Sodium Na⁺
- salt's cation — pairs with chloride to make the water salty.
Known good for
- Smooth skindry, rough skin
- Recoveryfatigue, stress
A sodium-led bicarbonate spring of the classic jūsō-sen (soda-water) family. The source emerges cold at 14.7 °C, a cold-mineral spring heated for bathing. Weakly alkaline at pH 8.4 with the soft, slightly slippery feel that places it squarely in Japan's beauty-water tradition. Moderately mineralized at 3.49 g/kg total dissolved solids, the water carries a faint hydrogen-sulfide note and visible gas bubbles at the wellhead.
Sampled at wellhead·Analyzed Dec 19, 2023·一般財団法人 静岡県生活科学検査センター·Cert no. 第M23025号
