Material Safety Data Sheet
Science Stuff, Inc.
1104 Newport Ave
Austin, TX 78753
Phone (512) 837-6020
Chemtrec 800-424-9300
24 Hour Emergency Assistance
Section 1 Identification
Product Number:C2104 
Health:
Flammability
Reactivity
Hazard Rating:
LeastSlightModerateHighExtreme
01234
NA = Not Applicable NE = Not Established
Product Name:Methylene Blue Solution (Loeffler's) 
Trade/Chemical Synonyms 
Formula:N/A
RTECS: 
C.A.SSee Below
Section 2 Component Mixture
Sara 313ComponentCAS Number%DimExposure Limits:
Water, Deionized ASTM Type II CAS# 7732-18-5 Balance v/v None Established 
Alcohol, Reagent Denatured Ethyl Alcohol  23% v/v OSHA TWA 1000 ppm (1900 mg/mƒ) 
Methylene Blue  CAS# 7220-79-3 0.3% w/v None Established 
Potassium Hydroxide  CAS# 1310-58-3 0.02% w/v OSHA PEL 2 mg/mƒ 
Section 3 Hazard Identification (Also see section 11)
Keep away from heat and ignition sources. Harmful if swallowed. Avoid breathing vapors. Use with adequate ventilation. Avoid contact with eyes, skin, and clothes. Wash thoroughly after handling. Keep container closed. 
Section 4 First Aid Measures
Keep away from heat and ignition sources. Harmful if swallowed. Avoid breathing vapors. Use with adequate ventilation. Avoid contact with eyes, skin, and clothes. Wash thoroughly after handling. Keep container closed.

FIRST AID: SKIN: Remove contaminated clothing. Wash exposed area with soap and water. If symptoms persist, seek medical attention

EYES: Wash eyes with plenty of water for at least 15 minutes, lifting lids occasionally. Seek Medical Aid. INHALATION: Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen

INGESTION: If swallowed, induce vomiting immediately after giving two glasses of water. Never give anything by mouth to an unconscious person.
Section 5 Fire Fighting Measures
Fire Extinguisher Type:Any means suitable for extinguishing surrounding fire
Fire/Explosion Hazards:gives off flammable vapors .
Fire Fighting Procedure:Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and clothing.
Section 6 Accidental Release Measures
Absorb spill with inert material, then place in a chemical waste container. RemoveDispose of in a manner consistent with federal, local law.
Section 7 Handling and Storage
Store in a cool dry place. Do not get in eyes, on skin, on clothing. Wash thoroughly after handling 
Section 8 Exposure Controls & Personal Protection
Respiratory Protection:Organic Vapor Cartridge
Ventilation: Mechanical: Hand Protection:Gloves to prevent skin exposure as latex or vinyl
Local Exhaust: Eye Protection:Splash Goggles
Other Protective Equipment: Wear appropriate clothing to prevent skin exposure
Section 9 Physical and Chemical Properties
Melting Point:Information not availableSpecific Gravityinformation not available
Boiling Point:Information not available Percent Volatile by Volume:23%
Vapor Pressure:Information not available Evaporation Rate:information not available
Vapor Density: Information not available Evaporation Standard: Not Applicable
Solubility in Water: information not available Auto ignition Temperature: information not available
Appearance and Odor: clear blue solution ethyl alcohol smell Lower Flamm. Limit in Air: 3.3%
Flash Point: 33°c Upper Flamm. Limit in Air: 19%
Section 10 Stability and Reactivity Information
Stability: StableConditions to Avoid: Avoid contact with heat, sparks, flames, or other sources of ignition.
Materials to Avoid:
Strong oxidizing agents.
Hazardous Decomposition Products:
carbon oxides.
Hazardous Polymerization:Will Not Occur
Condition to Avoid:None known
Section 11 Additional Information
Conditions aggravated/Target organs: Persons with preexisting skin, eye, respiratory, or kidney/liver disorders may be more susceptible. Toxic due to denaturants. Acute: irritation to skin, eyes, lungs, mucous membranes, and GI tract. Nausea, headache, narcosis, dizziness, and vision difficulties. Chronic: liver/kidney damage, blindness, pancreatitis, and nerve disorders. 
DOT Classification: Not Regulated
DOT regulations may change from time to time. Please consult the most recent version of the relevant regulations.
Revision No:0Date Entered: 9/1/2006 Approved by: WPF

The information contained herein is believed to be accurate and is offered in good faith for the user's consideration and investigation. No warranty is expressed or implied regarding the completeness or accuracy of this information, whether originating from Science Stuff, Inc. or from an alternate source. Users of this material should satisfy themselves by independent investigation of current scientific and medical information that this material may be safely handled.