宝川温泉 3号井
Takaragawa Onsen Well No. 3Operated by · 株式会社宝川温泉汪泉閣
湯
Simple
- Color
- colorless and transparent
- Taste
- not recorded
- Odor
- not recorded
Sodium Chloride-Sulfate spring
pH 7.8Weakly alkalineHot source · 59°CHigh silica
Composition fingerprint0.6 g/kg dissolved · Hypotonic
Na⁺78
Ca²⁺19
Cl⁻50
SO₄²⁻35
◀ 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
- Aches & jointsstiff shoulders
- Smooth skindry, rough skin
- Recoveryfatigue, stress
A simple thermal spring drawn from Takaragawa's No. 3 well. Weakly alkaline and soft on the skin, lightly mineralized and gentle on the body. What lifts it above plain simple-thermal water is metasilicic acid — enough of it to leave the thin silica film that places this water in Japan's beauty-water family, with noticeably smoother skin afterwards. The site's pictorial map marks a statue of Yamato Takeru as the discoverer of Takaragawa Onsen.
Sampled at wellhead·Analyzed Nov 29, 2002·（社）群馬県薬剤師会（環境衛生試験センター）