浅草観音温泉
Asakusa Kannon OnsenOperated by · 株式会社共立メンテナンス
塩
Chloride
+ Bicarbonate
- Color
- pale brown and clear, with bubbles rising
- Taste
- almost tasteless
- Odor
- almost odorless
Sodium-Magnesium Chloride-Bicarbonate spring
pH 8.2Weakly alkalineCold mineral source · 18°CHigh silicaCold mineral
Composition fingerprint1.1 g/kg dissolved · Hypotonic
Na⁺62
Mg²⁺20
Cl⁻60
HCO₃⁻35
◀ 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-magnesium chloride-bicarbonate cold mineral spring drawn from beneath Asakusa in central Tokyo. At under 25 °C it is a cold-mineral source, heated for bathing, and the certificate records bubbles rising at the wellhead. The water is pale brown and clear — it carries 10 mg/kg of humic matter — and is almost tasteless and odorless. Mildly alkaline and soft on the skin, with bicarbonate softness layered over the salty base and a generous helping of metasilicic acid, it belongs to Japan's beauty-water family.
Sampled at wellhead·Analyzed Jun 8, 2019·公益財団法人 中央温泉研究所