Material Safety Data Sheet
2,3-Dimethyl-2-butene  

Section 1 - Chemical Product and Company Identification
MSDS Name: 2,3-Dimethyl-2-butene 
Catalog Numbers: 86-36018

Section 2 - Composition, Information on Ingredients 
CAS# 563-79-1.
Chemical Name:2,3-Dimethyl-2-butene
Percent  98%min
EINECS/ELINCS:209-263-8
Hazard Symbols: F,Xn
Risk Phrases: 11-65.

Section 3 - Hazards Identification 
EMERGENCY OVERVIEW
Irritating to eyes, respiratory system and skin.

Potential Health Effects
Eye: Cause serious eye irritation. The toxicological properties of this material have not been fully investigated.
Skin: Cause skin irritation. The toxicological properties of this material have not been fully investigated.
Ingestion: :Cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.
Inhalation: Cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
Chronic: No information found.

Section 4 - First Aid Measures 
Eyes:Flush eyes with water as a precaution..
Skin: Wash off with soap and plenty of water.
Ingestion: Never give anything by mouth to an unconscious person. Rinse mouth with water..
Inhalation: If breathed in, move person into fresh air. If not breathing, give artificial respiration.
Notes to Physician: Treat symptomatically and supportively.

Section 5 - Fire Fighting Measures 
General Information: Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion.
Extinguishing media: Use agent most appropriate to extinguish fire. In case of fire use Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide. Wear self contained breathing apparatus for fire fighting if necessary.

Section 6 - Accidental Release Measures 
Personal precautions, protective equipment and emergency procedures: Avoid dust formation. Avoid breathing vapors, mist or gas.
Environmental precautions: Do not let product enter drains.
 Methods and materials for containment and cleaning up: Sweep up and shovel. Keep in suitable, closed containers for disposal.
 Reference to other sections: For disposal see section 13

Section 7 - Handling and Storage 
Precautions for safe handling: Provide appropriate exhaust ventilation at places where dust is formed.Normal measures for preventive fire protection.
Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage.
Recommended storage temperature: 2 - 8 °C
Store under inert gas. Air sensitive. Air and moisture sensitive.

Section 8 - Exposure Controls, Personal Protection 
Engineering Controls: Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits. Use process enclosure, local exhaust ventilation, or other engineering controls to control airborne levels. 

Personal Protective Equipment
Eyes: Face shield and safety glasses Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin: Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands.
The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.
Clothing: Complete suit protecting against chemicals, Flame retardant antistatic protective clothing, The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.
Respirators: Where risk assessment shows air-purifying respirators are appropriate use a full-face respirator with multi-purpose combination (US) or type ABEK (EN 14387) respirator cartridges as a backup to engineering controls. If the respirator is the sole means of protection, use a full-face supplied air
respirator. Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).

Section 9 - Physical and Chemical Properties 
Physical State: Liquid .
Color: Colorless .
 
Odor: Not available
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 73 - 74 °C at 1.013 hPa.
Freezing/Melting Point:
Autoignition Temperature: Not available.
Flash Point: Not available.
Decomposition Temperature:Not available.
Solubility: Not available.
Specific Gravity/Density: 0,709 g/cm3.
Molecular Formula: C6H12.
Molecular Weight: 84.16.

Section 10 - Stability and Reactivity 
Chemical Stability: Not available.
Conditions to Avoid: Heat, flames and sparks. Extremes of temperature and direct sunlight.
Incompatibilities with Other Materials: Oxidizing agents.
Hazardous Decomposition Products: Not available.
Hazardous Polymerization: has not been reported.

Section 11 - Toxicological Information 
RTECS#:
CAS#563-79-1
LD50/LC50: RTECS:
CAS#563-79-1.:
Carcinogenicity:IARC: No component of this product present at levels greater than or equal to 0.1% is identified as probable, possible or confirmed human carcinogen by IARC.
Epidemiology: No information found
Other Studies: The toxicological properties have not been fully investigated. See actual entry in RTECS for complete information.
WGK Germany: 3

Section 12 - Ecological Information 
12.1 Toxicity
no data available
12.2 Persistence and degradability
no data available
12.3 Bioaccumulative potential
no data available
12.4 Mobility in soil
no data available
12.5 Results of PBT and vPvB assessment
no data available
12.6 Other adverse effects
no data available

Section 13 - Disposal Considerations
Dispose of in a manner consistent  with federal, state, and local regulations.

Section 14 - Transport Information 
14.1 UN number
ADR/RID: 3295                                  IMDG: 3295                                          IATA: 3295
14.2 UN proper shipping name
ADR/RID:  HYDROCARBONS, LIQUID, N.O.S.
IMDG:  HYDROCARBONS, LIQUID, N.O.S.
IATA:  Hydrocarbons, liquid, n.o.s.
14.3 Transport hazard class(es)
ADR/RID: 3                                     IMDG: 3                                                      IATA: 3
14.4 Packaging group
ADR/RID: II                                     IMDG: II                                                         IATA: II
14.5 Environmental hazards
ADR/RID: no                                     IMDG Marine pollutant: no                           IATA: no
14.6 Special precautions for user
no data available

Section 15 - Regulatory Information
European Labeling in Accordance with EC Directives
      Hazard Class: F,Xn
        Risk Phrases:
            R11 Highly flammable.
            R65 Harmful: may cause lung damage if swallowed.
       Safety Phrases:
            S16 Keep away from sources of ignition - No smoking.
   
            S33 Take precautionary measures against static discharges.
            S62 If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label.

Section 16 - Additional Information
While the information herein is believed to be reliable, it is furnished without warranty of any kind. It shall be used only as a guide. We assume no liabilities from the use of this product or information contained herein.