夷谷温泉
Ebisudani OnsenOperated by · 株式会社プランニングサポート
Sampled at bath inlet
硫
Sulfate
Classification
Calcium-Sodium Sulfate spring
A calcium- and sodium-led sulfate spring of settled, mineral-rich character. Weakly alkaline at pH 7.8, the water is soft on the skin; at the source it carries a pale brown, slightly turbid look and a faint metallic note from a trace of iron. Moderate mineralization at 1,042 mg/kg with sulfate making up over 93% of the anions — a textbook Ca-Na-SO₄ profile with the quiet body that sulfate springs are known for.
pH
7.80
Weakly alkaline
Source temperature
36.8°C
Warm
Tonicity
1.04g/kg
Hypotonic
Free CO₂
6.60mg/kg
Low
Radon
1.00Bq/kg
Low
- Color
- pale brown, slightly turbid
- Taste
- faintly metallic
- Odor
- odorless
Analyzed Mar 25, 2024·株式会社 東洋環境分析センター·Cert no. yZ2307370-001