瀧の上温泉
Takinoue Onsen曹
Bicarbonate
+ Chloride · Sulfate
- Color
- colorless and clear
- Taste
- tasteless
- Odor
- odorless
Sodium Bicarbonate-Chloride-Sulfate spring
pH 6.8NeutralHot source · 60°CHigh silica
Composition fingerprint1.3 g/kg dissolved · Hypotonic
Na⁺59
Mg²⁺18
Ca²⁺15
HCO₃⁻38
Cl⁻34
SO₄²⁻28
◀ 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
- Circulationtired legs
- Aches & jointsstiff shoulders
A sodium-led bicarbonate spring with chloride and sulfate layered in close behind — the jūsō-sen soda-water style, soft on the skin. It runs neutral at the wellhead and moderately mineralized at 1,313 mg/kg of dissolved solids, giving the water noticeable body without any sharpness. A generous 118.3 mg/kg of metasilicic acid puts it squarely in Japan's beauty-water family, leaving the kind of thin silica film that makes skin feel noticeably smoother afterwards.
Sampled at wellhead·Analyzed Oct 12, 2017·ニチゴー九州株式会社·Cert no. X17-00700