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:C1342 
Health:
Flammability
Reactivity
Hazard Rating:
LeastSlightModerateHighExtreme
01234
NA = Not Applicable NE = Not Established
Product Name:Bromocresol Green - Methyl Red Indicator Soln 
Trade/Chemical Synonyms 
Formula:APHA for Alkalinity
RTECS:None 
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 
Bromocresol Green Sodium Salt CAS# 62625-32-5 0.1% W/V None established 
Methyl Red Sodium Salt  CAS# 845-10-3 0.02% W/V None Established 
Section 3 Hazard Identification (Also see section 11)
May be harmful if swallowed. May cause irritation. Avoid breathing vapors, or dusts. Use with adequate ventilation. Avoid contact with eyes, skin, and clothes. Wash thoroughly after handling. 
Section 4 First Aid Measures
May be harmful if swallowed. May cause irritation. Avoid breathing vapors, or dusts. Use with adequate ventilation. Avoid contact with eyes, skin, and clothes. Wash thoroughly after handling.

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: Give several glasses of water. Vomiting may occur, but it is not necessary to induce.
Section 5 Fire Fighting Measures
Fire Extinguisher Type:Any means suitable for extinguishing surrounding fire
Fire/Explosion Hazards:None
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. Flush excess down drain.
Section 7 Handling and Storage
This Material is not considered hazardous. Handle using safe laboratory practices. 
Section 8 Exposure Controls & Personal Protection
Respiratory Protection:None required
Ventilation: Mechanical: Hand Protection:Gloves to prevent skin exposure as latex or vinyl
Local Exhaust: Eye Protection:Safety Glasses
Other Protective Equipment: Use safe laboratory handling procedures.
Section 9 Physical and Chemical Properties
Melting Point:~0CSpecific Gravity1
Boiling Point:100C Percent Volatile by Volume:>99%
Vapor Pressure:Information not available Evaporation Rate:
Vapor Density: Information not available Evaporation Standard:
Solubility in Water: Soluble Auto ignition Temperature: Not applicable
Appearance and Odor: Clear Green-blue / None Lower Flamm. Limit in Air: Not applicable
Flash Point: Not flammable Upper Flamm. Limit in Air: Not applicable
Section 10 Stability and Reactivity Information
Stability: StableConditions to Avoid: None known
Materials to Avoid:
none known
Hazardous Decomposition Products:
Not known to occur
Hazardous Polymerization:Will Not Occur
Condition to Avoid:None known
Section 11 Additional Information
Conditions aggravated/Target organs: None known. Acute: slight irritation possible to skin, eyes, lungs, mucous membranes and GI tract. Chronic: none known. 
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.