Methylene Blue Solution Extra Pure

1. Basic Identification Attributes

• Chemical Name: Methylene Blue Solution

• Active Ingredient: Methylene Blue (C₁₆H₁₈ClN₃S)

• CAS Number: 61-73-4 (for Methylene Blue)

• Appearance: Deep blue liquid solution

• Odor: Odorless or faint

• Solubility: Completely soluble in water

• Grade: Extra Pure

• Concentration (typical): 0.1% to 1% w/v (may vary by supplier)

2. Safety & Hazard Attributes

• GHS Classification:
  • Eye Irritant (Category 2A)

  • Skin Irritant (Category 2)

  • Acute Toxicity – Oral (Category 4, in large doses)

• Hazard Statements:
  • H302: Harmful if swallowed

  • H315: Causes skin irritation

  • H319: Causes serious eye irritation

• Precautionary Statements:
  • P280: Wear protective gloves and eye protection

  • P305+P351+P338: IF IN EYES – Rinse with water for several minutes

  • P301+P312: IF SWALLOWED – Call a POISON CENTER if unwell

• PPE Required:
  • Gloves

  • Protective eyewear

  • Lab coat

• First Aid Measures:
  • Eyes: Rinse with water, seek medical help if irritation persists

  • Skin: Wash with soap and water

  • Inhalation: Not likely a hazard, ensure good ventilation

  • Ingestion: Rinse mouth, do not induce vomiting

• Fire Hazard:
  • Water-based, not flammable

  • For dry residues, use water spray, CO₂, or dry chemical extinguishers

3. Storage & Handling

• Storage Conditions:
  • Store in tightly closed bottles

  • Keep away from light and heat

  • Avoid freezing and contamination

• Handling Notes:
  • Handle with care—stains are hard to remove

  • Avoid contact with skin, clothes, and lab surfaces

4. Laboratory Applications

• Primary Uses:
  • Microscopy stain (visualization of cellular structures and bacteria)

  • Biochemical redox indicator

  • Teaching and demonstration purposes

• Secondary Uses:
  • Aquaculture treatment (parasitic/fungal control in fish)

  • Redox reaction demonstrations in chemistry education

  • Medical diagnostic applications (e.g., in methylene blue dye tests)