地獄温泉(すずめ湯混合泉)
Jigoku Onsen (Suzume-no-yu Blended Spring)Operated by · 地獄温泉 清風荘
Mixed source
酸
Acidic
+ 含硫黄泉 · Simple
- Color
- strong opalescent white turbidity
- Taste
- moderately astringent
- Odor
- strong hydrogen sulfide odor
Hydrogen-Calcium Sulfate spring
pH 2.8AcidicHot source · 48°CUltra-acidicSulfur-richHigh silica
Composition fingerprint0.5 g/kg dissolved · Hypotonic
H⁺29
Ca²⁺21
Mg²⁺14
SO₄²⁻96
◀ CationsAnions ▶
- Hydrogen H⁺
- makes the water acidic — sharp and bactericidal.
- Sulfate SO₄²⁻
- "gypsum / Glauber's salt" — vessels and wound healing.
Known good for
- Skin conditionsatopic skin, eczema
- Circulationtired legs
- Aches & jointsstiff shoulders
- Sensitive-skin cautionbroken or dry skin
A strongly acidic (pH 2.8) sulfur-bearing simple-thermal spring — an opalescent, milky-white water with a moderately astringent bite and a powerful rotten-egg note of H₂S. Free hydrogen sulfide runs to 9.3 mg/kg and total sulfur reaches 8.8 mg/kg, well into the sulfur-bearing band; metasilicic acid at 166 mg/kg adds a faint silica film on top of the pricking, distinctly sulfurous bite that defines the bathhouse's signature Suzume-no-yu pool.
Analyzed Feb 8, 2016·株式会社 同仁グローバル·Cert no. K15107818