新湯1, 2, 3, 5, 7号(混合泉)
Shin'yu Springs #1, #2, #3, #5, #7 (blended)Mixed source
黄
Sulfur
- Color
- white, slightly turbid
- Taste
- bitter
- Odor
- hydrogen sulfide
Calcium-Sodium-Magnesium Bicarbonate-Sulfate spring
pH 5.1Weakly acidicHot source · 61°CSulfur-rich
Composition fingerprint0.3 g/kg dissolved · Hypotonic
Ca²⁺48
Na⁺25
Mg²⁺23
HCO₃⁻46
SO₄²⁻31
◀ CationsAnions ▶
- Calcium Ca²⁺
- settling and calming; can leave a white mineral bloom.
- 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 blend of five wellheads (Shin'yu Springs #1, #2, #3, #5 and #7) classified as a simple sulfur spring of the hydrogen sulfide subtype. Emerges hot at 60.5 °C, milky-white at the source with the unmistakable rotten-egg note of H₂S and a faint astringent bite on the tongue. Weakly acidic at pH 5.1 and only lightly mineralized (345 mg/kg total dissolved solids), it nonetheless carries a generous 82 mg/kg of free hydrogen sulfide alongside 193 mg/kg of free CO₂ — the kind of dense sulfur water long credited with helping stubborn skin conditions.
Analyzed Aug 25, 1990·一般財団法人 鹿児島県環境技術協会