UBE INDUSTRIES, LTD.
Fine Chemicals Division
Date / revised
Trade name : 1,2-Methylenedioxy benzene
MATERIAL SAFETY DATA SHEET
1. IDENTIFICATION OF THE CHEMICAL AND OF THE MANUFACTURER, IMPORTER OR OTHER UNDERTAKING
o Manufacturer's Name: UBE Industries, Ltd.
Address: Seavans North Bldg 1-2-1,Shinaura Minato-ku
Tokyo 105-8499, Japan
Emergency Telephone Number: 001-81-3-5419-6175
Telephone Number for Information: 001-81-3-5419-6255
o Date Prepared: 03 Aug.1993
o Signature of Preparer:
2. Hazardous Ingredients/Identity Information
o Hazardous Components (Specific Chemical Identity, Common Name(s)):
1,2-Methylenedioxy benzene
o CAS No.: 274-09-9
o Content (%): > 98.0 %
o Synonyms: 1,3-Benzodioxole
o OSHA PEL: Not regulated.
o ACGIH TLV: Not evaluated.
o Other Limits Recommended (%): NA
3. Physical/Chemical Characteristics
o Boiling Point : 173 掳C
o Specific Gravity (H2O = 1): 1.178 (20掳C)
o Vapor Pressure (mmHg): 148 pa(20掳C)
o Melting Point: -9.5 掳C
o Vapor Density (AIR = 1): NA
o Evaporation Rate (Butyl Acetate = 1): NA
o Solubility in Water: 0.054 wt%(25掳C)
o Appearance and Odor: Colorless liquid, odorless
4. Fire and Explosion Hazard Data
o Flash Point: 60 掳C(closed cup)
o Flammable Limits: NA
o LEL: NA
o UEL: NA
o Extinguishing Media: Alcohol form, Carbon dioxide
o Special Fire Fighting Procedures: Do not inhale gases, wear NIOSH/MSHA approved breathing apparatus and full
protctive clothings.
o Unusual Fire and Explosion Hazards: Under fire conditions, material may decompose to form flammable and/or
explosive mixtures in air.
5. Reactivity Data
o Stability (Stable or Unstable): Stable 鈹? however better to avoid exposure to light and moisture.
o Incompatibility (Materials to Avoid): Acids and strong oxidizing agents.
o Hazardous Decomposition or Byproducts: Carbon monoxide, Carbon dioxide.
o Hazardous Polymerization (May Occur or May Not Occur): May Not Occur.
6. Health Hazard Data
o Route(s) of Entry:
! Inhalation ?
May occur.
! Skin ?
May occur.
! Ingestion ?
May occur.
o Health Hazards (Accute and Chronic):
a) Acute toxicity : Oral LD50(rat) 580mg/kg, Dermal LD50(rat) 3000mg/kg
b) Corrosive and irritant properties : The material was slightly irritant to rabbit eye, not corrosive rabbit skin.
o Carcinogenicity:
! NTP ?
Not listed.
! IARC Monograph ?
Not listed.
! OSHA Regulated ?
Not listed.
o Signs and Symptoms of Exposure: NA
o Medical Conditions (Generally Aggravated by exposure): NA
o Emergency and First Aid Procedures:
! a) Skin Contact: Immediately wash skin with soap and a lot of water.
! b) Eye Contact: Remove any contact lenses immediately. Flush eyes well with copious amount of water
for at least 20-30 minutes. Seek medical attention.
! c) Inhalation: Remove to fresh air. Proper respiratory protection must be supplied to any rescuers. If
coughing, difficult breathing or any other symptoms develop, seek medical attention at once.
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UBE INDUSTRIES, LTD.
Fine Chemicals Division
Date / revised
Trade name : 1,2-Methylenedioxy benzene
MATERIAL SAFETY DATA SHEET
7. Precautions for Safe Handling and Use
o Step to Be Taken in Case Material is Released or Spilled:
! Evacuate non essential personnel
! Wear self-contained breathing apparatus, rubber boots and heavy rubber gloves.b
! Absorb on sand vermiculate and closed container for disposal.
! Ventilate area and wash spill site after material pickup is complete.
o Waste Disposal Method:
! This combustible material may be burned in a chemical incinerator equipped with an afterburner and
scrubber.
o Precautions to Be Taken in Handling and Storing:
! Avoid contact and inhalation. Do not get in eyes, on skin, on clothing. Wash thoroughly after handling.
Keep tightly closed. Keep away from heat and open flame.
! Store in a cool and dry place.
8. Control Measures
o Respiratory Protection (Specify Type): OSHA/MSHA-approved respirator.
! Use gas mask with an organic vapor canister.
o Ventilation:
! Local Exhaust: Preferred
! Special: NA
! Mechanical (General): Mechanical exhaust required.
! Other: NA
o Protective Gloves: Chemical resistant gloves must be worn.
o Eye Protection: Use protective glasses or safety goggles.
o Other Equipment: Safety shower and eye wash facility, self-contained breathing apparatus, protective clothing and
mask.
o Work/Hygienic Practices: Hygienic practices are necessary.
9. Transport Information
o UN Number: 1993
o Packaging Category: Class 3.3. Packaging Group III
o Sea transport
! IMDG class: Class 3.3
! Correct technical name: 1,2-Methylenedioxy benzene
o Air transport
! IDAO/IATA class: Class 3.3
! Correct technical name: 1,2-Methylenedioxy benzene
To the best of our knowledge, the information contained here in is accurate. However, neither ----- UBE Industries, LTD. nor any
subsidiaries assumes any liability whatsoever for the accuracy or completeness of the information contained herein. Final determination of
suitability of any material is the sole responsibility of the user. All materials may present unknown hazards and should be used in caution.
Although certain hazards are described herein, we cannot guarantee that these are the only hazards which exist.
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