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:C1658 
Health:
Flammability
Reactivity
Hazard Rating:
LeastSlightModerateHighExtreme
01234
NA = Not Applicable NE = Not Established
Product Name:Cyclohexane  Reagent A.C.S.
Trade/Chemical Synonyms 
Formula:CH
RTECS:GU6300000 
C.A.SCAS# 110-82-7
Section 2 Component Mixture
Sara 313ComponentCAS Number%DimExposure Limits:
Cyclohexane  CAS# 110-82-7 100% V/V OSHA TWA 300 ppm (1050 mg/m) (general ind.) 
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: CALL A PHYSICIAN. SKIN: Remove contaminated clothing. Wash exposed area with soap and water.

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 appropriate foam
Fire/Explosion Hazards:Vapor may travel considerable distance to source of ignition and flash back.
Fire Fighting Procedure:Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and clothing.
Section 6 Accidental Release Measures
Remove all sources of ignition. Ventilate area of leak or spill. Wear protective equipment. Clean up in a manner that doen't disperse dust.
Section 7 Handling and Storage
Store in a cool dry well ventilated area. Keep away from heat and flame. Do not get in eyes, on skin, or on clothing. 
Section 8 Exposure Controls & Personal Protection
Respiratory Protection:NIOSH/MSHA-approved respirator
Ventilation: Mechanical: Hand Protection:NIOSH Approved Gloves
Local Exhaust: Eye Protection:Splash Goggles
Other Protective Equipment: Wear appropriate clothing to prevent skin exposure
Section 9 Physical and Chemical Properties
Melting Point:6.5CSpecific Gravity0.779
Boiling Point:80.7C Percent Volatile by Volume:>99
Vapor Pressure:77 mm Hg Evaporation Rate:Information not available
Vapor Density: 2.9 Evaporation Standard:
Solubility in Water: Information not available Auto ignition Temperature: Not applicable
Appearance and Odor: Clear, colorless liquid with organic odor Lower Flamm. Limit in Air: Not applicable
Flash Point: -17 C Upper Flamm. Limit in Air: Not applicable
Section 10 Stability and Reactivity Information
Stability: StableConditions to Avoid: Avoid contact with incompatible materials.Heat
Materials to Avoid:
Oxidizing materials
Hazardous Decomposition Products:
Carbon dioxide, carbon monoxide.
Hazardous Polymerization:Will Not Occur
Condition to Avoid:None known
Section 11 Additional Information
Harmful if inhaled or swallowed. May be harmful if absorbed through the skin. Vapor or mist is irritating to the eyes, mucous membranes, and upper respiratory system. Causes skin irritation. Causes lung irritation, chest pain and edema which may be fatal. Conditions aggravated/target organs: Lungs and nerves are targeted. Persons with pre-existing eye, skin and respiratory conditions may be more susceptible. 
DOT Classification: Cyclohexane, 3, UN1145, PG II
DOT regulations may change from time to time. Please consult the most recent version of the relevant regulations.
Revision No:0.1Date 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.