寿温泉
Kotobuki Onsen- Color
- colorless and clear
- Taste
- tasteless
- Odor
- odorless
Sodium-Magnesium-Calcium Bicarbonate-Chloride spring
- Sodium Na⁺
- salt's cation — pairs with chloride to make the water salty.
- Bicarbonate HCO₃⁻
- "soda" — softens skin, leaves it smooth.
- Smooth skindry, rough skin
- Aches & jointsstiff shoulders
- Warmingcold sensitivity
A sodium-magnesium-calcium bicarbonate-chloride spring, filed on the certificate under its older classification as a soda-water (jūsō-sen) type with an earthy-chloride character. Weakly alkaline and soft on the skin, it sits in Japan's beauty-water family, with a salty edge from the chloride side and moderate mineralization at 1,015 mg/kg. The standout figure is metasilicic acid at 259 mg/kg — enough silica to leave the thin, moisturizing film that makes skin feel noticeably smoother afterwards. The water itself is colorless, clear, tasteless and odorless.
Sampled at delivery pipe·Analyzed Nov 12, 2019·公益社団法人大分県薬剤師会·Cert no. 大薬検 第7R-19110015号