天然温泉 浪花の湯
Tennen Onsen Naniwanoyu塩
Chloride
+ Bicarbonate
Sodium Chloride spring
High silica
Composition fingerprint1.1 g/kg dissolved · Hypotonic
Na⁺87
Cl⁻67
◀ 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-bicarbonate spring — salty chloride water layered with a softer bicarbonate finish, classified under the old nomenclature as 'gan-jūsō-shokuen-sen' (salt water with sodium bicarbonate). The wellhead emerges at a cool 33.7 °C (a 'low-temp' classification requiring reheating for bathing), and the water is weakly alkaline and gentle on the skin. With 88.4 mg/kg of metasilicic acid it carries the silica-driven smoothness associated with Japan's 'beauty-water' family, and at 1,124 mg/kg of dissolved solids it offers moderate body without overwhelming mineralization — a balanced urban onsen.
Analyzed May 23, 2023·日本水処理工業株式会社·Cert no. 温泉成分分析機関 大阪府第5号