国分5号
Kokubu No. 5Operated by · 岩戸温泉(一般公衆浴場)
Sodium Bicarbonate spring
A sodium-led bicarbonate spring of the classic jūsō-sen style, rising at a hot 55.2 °C in Kirishima. Weakly alkaline (pH 7.9) and soft on the skin, it sits squarely in Japan's beauty-water family. A generous 207.9 mg/kg of metasilicic acid leaves the kind of silica film that makes skin feel noticeably smoother after a soak.
- Color
- colorless and transparent
- Taste
- tasteless
- Odor
- odorless
- High silica
Analyzed May 21, 2019·株式会社東洋環境分析センター·Cert no. 鹿児島県第4号