奥山温泉
Okuyama Onsen黄
Sulfur
- Color
- colorless and clear
- Taste
- with a sulfurous note
- Odor
- sulfurous note, with slight effervescence
Sodium Carbonate spring
pH 9.9AlkalineHot source · 42°CSulfur-richStrongly alkalineTop-decile alkaline
Composition fingerprint0.1 g/kg dissolved · Hypotonic
Na⁺95
CO₃²⁻42
HCO₃⁻15
◀ CationsAnions ▶
- Sodium Na⁺
- salt's cation — pairs with chloride to make the water salty.
- Carbonate CO₃²⁻
- strongly alkaline; slippery feel.
Known good for
- Skin conditionsatopic skin, eczema
- Circulationtired legs
- Aches & jointsstiff shoulders
- Sensitive-skin cautionbroken or dry skin
A strongly alkaline simple sulfur spring (42.4 °C). At pH 9.9 at the wellhead it sits in the rare 'strongly alkaline' tier and gives that pronounced slippery feel on the skin Japanese bathers call beauty-water. The water carries the unmistakable rotten-egg note of H₂S (4.2 mg/kg HS⁻), yet total dissolved solids are only 131 mg/kg, so the body remains light and gentle. A faint fizz is even visible at the source.
Sampled at wellhead·Analyzed Oct 9, 2018·一般社団法人 山梨県食品衛生協会·Cert no. 梨食第30-5号
