湯泉地温泉1号・2号混合源泉
Tosenji Onsen #1 and #2 Mixed SourceOperated by · 十津川村
Mixed source
黄
Sulfur
- Color
- colorless and transparent
- Taste
- not recorded
- Odor
- with a faint sulfur note
Sodium Bicarbonate-Carbonate spring
pH 8.9AlkalineHot source · 53°CSulfur-rich
Composition fingerprint0.2 g/kg dissolved · Hypotonic
Na⁺96
HCO₃⁻52
CO₃²⁻25
◀ 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
- Skin conditionsatopic skin, eczema
- Circulationtired legs
- Aches & jointsstiff shoulders
- Sensitive-skin cautionbroken or dry skin
A naturally sulfur-bearing simple thermal source, blending the village's #1 and #2 wells in Totsukawa. Alkaline (pH 8.9) and hypotonic, with a soft, slippery feel and a recognizable faint sulfur note at the wellhead. Lightly mineralized — total dissolved solids just 236 mg/kg — yet free sulfide species (HS) reach about 5 mg/kg, enough to qualify as a true sulfur spring under the Japanese classification.
Analyzed Mar 14, 2014·有限会社奈良環境調和研究所·Cert no. 蘆-1403047
