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:C1302 
Health:
Flammability
Reactivity
Hazard Rating:
LeastSlightModerateHighExtreme
01234
NA = Not Applicable NE = Not Established
Product Name:Benzalkonium chloride 50 wt% Aqueous Solution 
Trade/Chemical Synonyms 
Formula:N/A
RTECS:B03150000 
C.A.SSee Below
Section 2 Component Mixture
Sara 313ComponentCAS Number%DimExposure Limits:
Water, Deionized ASTM Type II CAS# 7732-18-5 40 w/w None Established 
Benzalkonium Chloride  CAS#: 8001-54-5 50% W/W Not established 
Ethyl Alcohol (Ethanol, Absolute) CAS# 64-17-5 10% W/W OSHA TWA 1000 ppm (1900 mg/mƒ) 
Section 3 Hazard Identification (Also see section 11)
May cause irritation and burns. May Be harmful if swallowed. Avoid breathing vapor or dust. Use with adequate ventilation. Avoid contact with eyes, skin, and clothes. Wash thoroughly after handling. Keep container closed. 
Section 4 First Aid Measures
May cause irritation and burns. May Be harmful if swallowed. Avoid breathing vapor or dust. 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 irritation persists, 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: Give several glasses of milk or water. Vomiting may occur spontaneously, but DO NOT INDUCE! Never give anything by mouth to an unconscious person.
Section 5 Fire Fighting Measures
Fire Extinguisher Type:Carbon Dioxide, dry chemical powder or water spray
Fire/Explosion Hazards:May emit toxic fumes under fire conditions
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. Dispose of in a manner consistent with federal, local law. Dissolve material and mix with a combustible solvent and burn in a chemical incinerator equipped with an after burner.
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:NIOSH/MSHA-approved respirator
Ventilation: Mechanical: Hand Protection:Solvent resistant gloves as neoprene or nitrile
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 Gravity0.96
Boiling Point:101° C Percent Volatile by Volume:50
Vapor Pressure:Information not available Evaporation Rate:not available
Vapor Density: Information not available Evaporation Standard:
Solubility in Water: soluble Auto ignition Temperature: 689° F
Appearance and Odor: white to yellow liquid Lower Flamm. Limit in Air: 3.3%
Flash Point: 105° F Upper Flamm. Limit in Air: 19%
Section 10 Stability and Reactivity Information
Stability: StableConditions to Avoid: see incompatibilities
Materials to Avoid:
Strong oxidizing agents.
Hazardous Decomposition Products:
Carbon dioxide, monoxide, Hydrogen chloride gas.
Hazardous Polymerization:Will Not Occur
Condition to Avoid:None known
Section 11 Additional Information
Toxic, corrosive. Harmful if swallowed, inhaled or absorbed through skin. Material is extremely destructive to tissue of mucous membranes. Symptoms of exposure may include burning sensation, coughing, wheezing, laryngitis, shortness of breath headache, nausea and vomiting. Persons with preexisting conditions may be more susceptible. Target organ data: Over exposure may cause somnolence, hallucinations, convulsions or effect on seizure threshold, ataxia, ulceration or bleeding from small intestine, diarrhea, nausea or vomiting, pre-implantaion mortality (effects on fertility), fetal toxicity, fetal death. Persons with preexisting conditions may be more susceptible. 
DOT Classification: Corrosive liquid n.o.s. (Benzalkonium Chloride), 8, UN1760, PG II
DOT regulations may change from time to time. Please consult the most recent version of the relevant regulations.
Revision No:1Date Entered: 5/17/2007 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.