甲府昭和温泉ビジネスホテル
Kofu Showa Onsen Business Hotel SpringOperated by · 有限会社昭和実業
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Bicarbonate
+ Chloride
- Color
- faintly yellow-brown and clear
- Taste
- slightly salty
- Odor
- faint hydrogen sulfide
Sodium Bicarbonate-Chloride spring
pH 7.9Weakly alkalineHot source · 45°CHigh silica
Composition fingerprint1.6 g/kg dissolved · Hypotonic
Na⁺79
HCO₃⁻60
Cl⁻39
◀ CationsAnions ▶
- Sodium Na⁺
- salt's cation — pairs with chloride to make the water salty.
- Bicarbonate HCO₃⁻
- "soda" — softens skin, leaves it smooth.
Known good for
- Smooth skindry, rough skin
- Aches & jointsstiff shoulders
- Warmingcold sensitivity
A sodium-led bicarbonate spring with a chloride sub-type — the jūsō-sen style, with a salty edge layered in. Weakly alkaline and soft on the skin, moderately mineralized at 1,566 mg/kg, it sits in Japan's beauty-water family. At the wellhead the water is faintly yellow-brown and clear, slightly salty on the lips, with a faint hydrogen sulfide note that has already faded by the time the sample reaches the lab. Metasilicic acid at 164.8 mg/kg leaves the kind of silica film that makes skin feel noticeably smoother afterwards.
Sampled at wellhead·Analyzed Jan 29, 2019·株式会社メイキョー·Cert no. M18-3733