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Methylene Blue 1% Aqueous Solution
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Description
Methylene Blue 1% Aqueous Solution
Other Names: Basic Blue 9 solution, C.I. 52015 solution
CAS Number (Methylene Blue): 61-73-4
Sum Formula (dye): C₁₆H₁₈ClN₃S
Appearance: Dark blue liquid solution
Methylene Blue 1% is an aqueous solution of the cationic dye methylene blue. It is commonly used as a laboratory stain, redox indicator, and tracer dye in industrial and analytical applications.
Chemical and Physical Properties
Concentration: 1% (w/v) in water
Solubility: Fully miscible with water
pH: Typically around 3–4 (slightly acidic)
Color: Intense deep blue
Stability: Stable under standard storage conditions; light-sensitive
Applications
Used as a staining agent in microscopy and biological sample analysis
Applied as a redox indicator in analytical and titration procedures
Utilized as a tracer or coloring agent in various technical processes
Laboratory reagent for visualization of chemical changes
Safety
Signal Word: Warning
Hazard Statements
H302 Harmful if swallowed.
Precautionary Statements
P264 Wash skin thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P301 + P312 IF SWALLOWED: Call a POISON CENTER/ doctor if you feel unwell. P501 Dispose
First Aid Measures
Eye Contact: Rinse with water for at least 15 minutes. Seek medical attention if irritation persists
Skin Contact: Wash with water and soap
Inhalation: Move to fresh air
Ingestion: Rinse mouth with water. Seek medical advice if discomfort occurs
Handling and Storage
Store in tightly closed containers, in a cool, dark place
Protect from direct sunlight and heat sources
Use with appropriate PPE to avoid staining and irritation