大東温泉 大東1号
Daito Onsen No. 1Operated by · 株式会社リバティー
塩
Chloride
- Color
- brown, transparent
- Taste
- weakly salty
- Odor
- odorless
Sodium Chloride spring
pH 8.0Weakly alkalineIodine-richHigh silica
Composition fingerprint9.8 g/kg dissolved · Isotonic
Na⁺92
Cl⁻88
◀ CationsAnions ▶
- Sodium Na⁺
- salt's cation — pairs with chloride to make the water salty.
- Chloride Cl⁻
- table-salt anion — coats the skin and holds heat in.
Known good for
- Warmingcold sensitivity
- Smooth skindry, rough skin
- Cutsminor wounds
A sodium-chloride spring carrying a faint brown tint at the source and a mild salty tang on the lips. Weakly alkaline and soft on the skin, with 87 mg/kg of metasilicic acid contributing the kind of silica film associated with Japan's "beauty-water" family. Iodide is unusually high at 12.2 mg/kg — enough to qualify as an iodine-bearing spring, so the water deepens in colour on contact with air.
Analyzed Apr 6, 2021·一般財団法人 静岡県生活科学検査センター·Cert no. 874-001号