Sakihana Onsen No. 6 Source
Analysis UnverifiedIn 1954, mineral flowers were found blooming on the banks of the Agano River, and a well was dug to open this comparatively young spa; the area's name was even changed to "Sakihana," meaning blooming flowers. Colorless when drawn, the water turns a clear yellow-green in the bath, leaving white mineral flakes on spouts and rails. A toasted, almost smoky sulfur aroma and a slick, weakly alkaline feel make it a favorite for sulfur-spring lovers.
The bar length shows how abundant each component is compared to thresholds that make it "distinctive" (therapeutic spring standards, beauty spring criteria, etc.).
The aroma typical of sulfur springs, with circulatory and antibacterial effects.
A trace component with gentle antibacterial and anti-inflammatory action.
Scores are calculated from mineral analysis data based on the Mineral Spring Analysis Guidelines (Ministry of Environment, Japan). They are unrelated to facility atmosphere or service quality.
▸Note
The temperature, pH and component values shown here are based on the hot spring analysis (source). Actual values in the bath may differ depending on heating, dilution, recycling and filtration. Please check current usage status at the facility.
At 46.3°C the source can keep free-flowing baths above 42°C, so alternate short dips with half-body soaks on the ledge. Remove silver jewelry, as sulfur tarnishes it.
With 19.8 mg/kg of hydrosulfide and 3.5 mg/kg of free hydrogen sulfide, this sulfur spring is traditionally associated with Immune system stimulation, while 284.5 mg/kg of chloride may support Restorative warmth after bathing.
It contains hydrogen sulfide, so avoid long soaks in poorly ventilated spaces. Check the hot water before entering, drink water often, and rinse off if your skin is sensitive.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- Sakihana Onsen No. 6 Source
- Spring type
- Sulfur-containing Sodium-Calcium Chloride and Sulfate Hot Spring
- Source temperature
- 46.3℃
- pH
- 7.8
- Flow rate
- 450 L/min
- Flow type
- 動力揚湯
- Osmotic pressure
- 低張性
Analysis Document
- Analysis date
- 2025-03-18
- Analyst organization
- 一般財団法人新潟県環境分析センター
- Registration No.
- 新潟県(登)環企第4号
Cations
- Lithium ion Li⁺
- 0.30 mg/kg
- Sodium ion Na⁺
- 225 mg/kg
- Potassium ion K⁺
- 6.8 mg/kg
- Ammonium ion NH₄⁺
- 0.50 mg/kg
- Magnesium ion Mg²⁺
- 0.90 mg/kg
- Calcium ion Ca²⁺
- 71.0 mg/kg
- Lead ion Pb²⁺
- < 0.005 mg/kg
- Strontium ion Sr²⁺
- 1.1 mg/kg
- Cadmium ion Cd²⁺
- < 0.001 mg/kg
- Total cations
- 0.31 mg/kg
Anions
- Fluoride ion F⁻
- 1.6 mg/kg
- Chloride ion Cl⁻
- 285 mg/kg
- Hydrogen sulfide ion HS⁻
- 19.8 mg/kg
- Thiosulfate ion S₂O₃²⁻
- 17.3 mg/kg
- Sulfate ion SO₄²⁻
- 236 mg/kg
- Bicarbonate ion HCO₃⁻
- 86.2 mg/kg
- Bromide ion Br⁻
- 0.90 mg/kg
- Hydrogen sulfate HSO₄⁻
- 0.00 mg/kg
- Total anions
- 0.65 mg/kg
Undissociated Components
- Metasilicic acid H₂SiO₃
- 46.6 mg/kg
- Metaboric acid HBO₂
- 3.9 mg/kg
- Total undissociated
- 0.05 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- 2.3 mg/kg
- Free hydrogen sulfide H₂S
- 3.5 mg/kg
- Total dissolved gas
- 0.01 mg/kg
Totals
- Total dissolved substances
- 1.0 mg/kg
- Component total
- 1.0 mg/kg
- Evaporation residue
- 0.87 mg/kg
Usage
- Heating
- No
- Dilution
- No
- Recycle / Filter
- No
- Additives
- No
- Disinfection
- No
Indications & Contraindications
- Bathing indications
- Atopic dermatitis, Plaque psoriasis, Chronic eczema, Epidermal suppuration, Cuts and grazes, Peripheral circulatory failure, Poor circulation, Depression, Xeroderma
- General indications
- High blood pressure (mild), Rheumatoid arthritis, Autonomic instability, Insomnia, Chronic pain or stiffness in muscles and joints, Muscle stiffness due to motor paralysis, Gastrointestinal dysfunction
- Contraindications
- Acute illness (especially with fever), Active tuberculosis, Malignant tumors, Severe heart disease, Respiratory failure, Renal failure, Bleeding disorders, Severe anemia, Any actively progressing illness, Pregnancy (especially early and late stages), Severe chronic dermatitis (sulphur springs)
Drinking
- Drinkability
- Not drinkable
