春日温泉
Kasuga OnsenSampled at wellhead
曹
Bicarbonate
Classification
Sodium Bicarbonate spring
A sodium bicarbonate spring, the classic jusosen style. Bicarbonate makes up about 80% of the anions, with small amounts of chloride and sulfate. pH is weakly alkaline (7.7 at the wellhead, 7.73 in the lab), giving the smooth, skin-softening feel that bicarbonate springs are known for. It emerges hot at 58.7 °C, a high-temperature spring you can bathe in as it comes, no heating needed. It also carries a notable 255 mg of metasilicic acid. Being hypotonic, it sits gently on the body.
pH
7.70
Weakly alkaline
Source temperature
58.7°C
Hot
Tonicity
1.32g/kg
Hypotonic
- Color
- colorless and transparent
- Taste
- tasteless
- Odor
- odorless
Analyzed Aug 21, 2019·Cert no. 県研第527号の4