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:C2861 
Health:
Flammability
Reactivity
Hazard Rating:
LeastSlightModerateHighExtreme
01234
NA = Not Applicable NE = Not Established
Product Name:Thymol Blue 0.4% w/v Solution Indicator Solution
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 
Thymol Blue Sodium Salt CAS# 81012-93-3 0.4% w/v None Established 
Section 3 Hazard Identification (Also see section 11)
Generally not hazardous in normal handling, however good laboratory practices should always be used. Avoid long term exposure to skin or by inhalation. 
Section 4 First Aid Measures
Generally not hazardous in normal handling, however good laboratory practices should always be used. Avoid long term exposure to skin or by inhalation.

FIRST AID: SKIN: 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: 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:None Known.
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.
Section 7 Handling and Storage
Store in a cool, dry, well-ventilated place away from incompatible materials. Wash thoroughly after handling. 
Section 8 Exposure Controls & Personal Protection
Respiratory Protection:None required
Ventilation: Mechanical: Hand Protection:Gloves to prevent exposure
Local Exhaust: Eye Protection:Safety Glasses w/ Side Shields
Other Protective Equipment: Wear appropriate clothing to prevent skin exposure
Section 9 Physical and Chemical Properties
Melting Point:0° CSpecific Gravity1
Boiling Point:100° C Percent Volatile by Volume:99+%
Vapor Pressure:17 Evaporation Rate:information not available
Vapor Density: 0.6 Evaporation Standard:
Solubility in Water: complete Auto ignition Temperature: Not applicable
Appearance and Odor: odorless dark blue liquuid Lower Flamm. Limit in Air: Not applicable
Flash Point: nonflammable Upper Flamm. Limit in Air: Not applicable
Section 10 Stability and Reactivity Information
Stability: StableConditions to Avoid: None known
Materials to Avoid:
Concentrated Acids and Bases, Water reactive materials.
Hazardous Decomposition Products:
Carbon dioxide, carbon monoxide
Hazardous Polymerization:Will Not Occur
Condition to Avoid:None known
Section 11 Additional Information
WARNING!! This material can produce toxic fumes under fire conditions. Effects of over exposure:irratition of the eyes,skin and upper respiratory tract. Acute: this material will stain the skin. Ingestion may cause gastrointestinal disturbances. Chronic: none are listed by the manufacturer. Target organs: eyes,skin and upper respiratory tract. Conditions aggravated/target organs. Persons with eye,skin or respiratory conditions may be more susceptible. 
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.