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2,5 DI-TERTIARY BUTYL HYDROQUINONE[DTBHQ]

Section 1 – CHEMICAL PRODUCT AND COMPANY IDENTIFICATION :

Chemical Name :  2,5-BIS-[1,1-DIMETHYLETHYL]-1,4-BENZENEDIOL

Chemical name         :       2,5-BIS-[1,1-DIMETHYLETHYL]-1,4-BENZENEDIOL
Product use               :       Inhibitor
Molecular Formula    :        C14H2202
Molecular Weight      :        222.33
Synonym(s)              :        00901-00-905681

Section 2 – COMPOSITION, INFORMATION ON INGREDIENTS :

Section 3. HAZARD IDENTIFICATION:

LOW HAZARD FOR USUAL INDUSTRIAL OR COMMERCIAL HANDLING BY TRAINED PERSONNEL

HMIS@ Hazard Ratings        : Health -1, Flammability -1, Chemical Reactivity -0

HMIS@ rating involves data interpretations that may vary from company to company. They are intended only for rapid, general identification of the magnitude of the specific hazard. To deal adequately with the safe handling of this material, all the information contained in this MSDS must be considered.

Section 4. FIRST AID INFORMATION:

Inhalation: If symptomatic, move to fresh air. Get medical attention if symptoms
                persist.
Eyes:        Any material that contacts the eye should be washed out immediately with water. If easy to do, remove contact lenses. Get medical attention if symptoms persist.
Skin:         Wash with soap and water. Get medical attention if symptoms occur.
                Ingestion: Seek medical advice.

Section 5. FIRE FIGHTING MEASURES:

Extinguishing Media: water spray, dry chemical, carbon dioxide.
Special Fire-Fighting Procedures: Wear self-contained breathing apparatus and protective clothing.
Hazardous Combustion Products: carbon dioxide, carbon monoxide
Unusual Fire and Explosion Hazards: Powdered material may form explosive dust-air mixtures.

Section 6. ACCIDENTAL RELEASE MEASURES:

Sweep up and place in a clearly labeled container for chemical waste.

Section 7. HANDLING AND STORAGE:

Personal Precautionary Measures: No special precautionary health measures should be needed under anticipated conditions of use.
Prevention of Fire and Explosion: Keep from contact with oxidizing materials. Minimize dust generation and accumulation. In the United States of America, refer to NFPA@ Pamphlet No.654, "Prevention of Fire and Dust Explosions in the Chemical, Dye, Pharmaceutical, and Plastics Industries."
Storage: Keep container closed.

Section 8. EXPOSURE CONTROLS AND PERSONAL PROTECTION:

Country specific exposure limits have not been established or are not applicable unless listed below.

Ventilation: Good general ventilation (typically 10 air changes per hour) should be used. Ventilation rates should be matched to conditions. Supplementary local exhaust ventilation, closed systems, or respiratory and eye protection may be needed in special circumstances; such as poorly ventilated spaces, heating, evaporation of liquids from large surfaces, spraying of mists, mechanical generation of dusts, drying of solids, etc.

Respiratory Protection: If engineering controls do not maintain airborne concentrations below recommended exposure limits (where applicable) or to an acceptable level (in countries where exposure limits have not been established), an approved respirator must be worn. In the United States of America, if respirators are used, a program should be instituted to assure compliance with OSHA Standard 63 FR 1152, January 8,1998. Respirator type: dust

Eye Protection: It is a good industrial hygiene practice to minimize eye contact.
Skin Protection: It is a good industrial hygiene practice to minimize skin contact. Recommended Decontamination Facilities: eye bath, washing facilities

Section 9. PHYSICAL AND CHEMICAL PROPERTIES:

Physical Form: solid (crystal)
Color: white
Odor: odorless
Odor Threshold: not applicable
Specific Gravity: 1.07
Melting Point: 215 °C
Boiling Point: 321 °C
Solubility in Water: negligible
pH: not applicable
Flash Point: 216 °C (Cleveland open cup)
Autoignition Temperature: 421 °C (ASTM D2155)
Thermal Decomposition Temperature: (DTA) No exotherm to boiling

Section 10. STABILITY:

Stability                                     :        Stable
Incompatibility                            :        Material reacts with strong oxidizing agents
Hazardous Polymerization            :        Will not occur

Section 11. TOXICOLOGICAL INFORMATION:

Acute toxicity data, if available, are listed below. Additional toxicity data may be available on request.
Oral LD-50:(rat)                 :        800 -1 ,600 mg/kg
Oral LD-50:(rat)                 :        >1 ,500 mg/kg(highest dose tested)
Oral LD-50:(mouse)            :        >1,800 mg/kg(highest dose tested)
Dermal LD-50: ( rabbit)       :        > 4,000 mg/kg (highest dose tested)
Skin Irritation (rabbit)         :        slight
(guinea pig)                       :        none

Section 12. ECOLOGICAL INFORMATION:

Acute toxicity data, if available, are listed below. Additional toxicity data may be available on request. This material has not been tested for environmental effects.

Section 13. DISPOSAL INFORMATION:

Discharge, treatment, or disposal may be subject to national, state, or local laws. Incinerate.

Section 14. TRANSPORTATION INFORMATION:

Important Note: Shipping descriptions may vary based on mode of transport, quantities, package size, and/or origin and destination. Consult your company's Hazardous Materials/Dangerous Goods expert for information specific to your situation.

DOT (USA) Class not regulated

Sea -IMDG (International Maritime Dangerous Goods) Class not regulated

Air- ICAO (International Civil Aviation Organization) Class not regulated

Section 15. REGULATORY INFORMATION:

This product has been classified in accordance with the hazard criteria of the Controlled Products Regulations and the MSDS contains all the information required by the Controlled Products Regulations.

WHMIS (Canada) Status: noncontrolled
SARA 313: none, unless listed below
Carcinogenicity Classification (components present at 0.1% or more): none, unless listed below

Section 16. OTHER INFORMATION
For additional information concerning this product, contact the following:
PRODUCT EMERGENCIES

The data and recommendations presented in this data sheet concerning the use of our product and the materials contain there in are believed to be accurate and are based on information which is considered reliable as of the date hereof. However, the customer should determine the suitability of such material for his purpose before adopting them on a commercial scale. Since the use our products by others is beyond our control, no guarantee, express or implied, is made and no responsibility assumed for the use of this material or the results to be obtained there from. Information on this form is furnished for the purpose of compliance with Government Health and Safety Regulations and shall not be used for any other purposes. Moreover, the recommendations contained in this data sheet are not to be constructed as a license to operate under, or a recommendation to infringe, any existing patents, nor should they be confused with state, municipal or insurance requirements, or with national safety codes.