SIGMA-ALDRICH
Material Safety Data Sheet
Date Printed: 28/JUN/2005
Date Updated: 14/MAR/2004
Version 1.4
According to 91/155/EEC
Classified as Hazardous according to the criteria of EU Annex 1 and
NOHSC.
1 - Product and Company Information
Product Name DIBROMOMETHANE, 99%
Product Number D41686
Company Sigma-Aldrich Pty. Ltd.
12 Anella Avenue
Castle Hill NSW 2154
Australia
Technical Phone # +61 2 9841 0555 (1800 800 097)
Fax +61 2 9841 0500 (1800 800 096)
Emergency Phone # +44 8701906777 (1800 448 465)
2 - Composition/Information on Ingredients
Product Name CAS # EC no Annex I
Index Number
DIBROMOMETHANE 74-95-3 200-824-2 602-003-00-8
Formula CH2Br2
Molecular Weight 173.85 AMU
Synonyms Methylene bromide * Methylene dibromide * RCRA
waste number U068
3 - Hazards Identification
SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT
Harmful by inhalation. Harmful to aquatic organisms, may cause
long-term adverse effects in the aquatic environment.
4 - First Aid Measures
AFTER INHALATION
If inhaled, remove to fresh air. If not breathing give
artificial respiration. If breathing is difficult, give oxygen.
AFTER SKIN CONTACT
In case of skin contact, flush with copious amounts of water for
at least 15 minutes. Remove contaminated clothing and shoes.
Call a physician.
AFTER EYE CONTACT
In case of contact with eyes, flush with copious amounts of
water for at least 15 minutes. Assure adequate flushing by
separating the eyelids with fingers. Call a physician.
AFTER INGESTION
If swallowed, wash out mouth with water provided person is
conscious. Call a physician immediately.
5 - Fire Fighting Measures
EXTINGUISHING MEDIA
Suitable: Carbon dioxide, dry chemical powder, or appropriate
foam.
SPECIAL RISKS
Specific Hazard(s): Emits toxic fumes under fire conditions.
SPECIAL PROTECTIVE EQUIPMENT FOR FIREFIGHTERS
Wear self-contained breathing apparatus and protective clothing
to prevent contact with skin and eyes.
6 - Accidental Release Measures
PERSONAL PRECAUTION PROCEDURES TO BE FOLLOWED IN CASE OF LEAK OR SPILL
Evacuate area.
PROCEDURE(S) OF PERSONAL PRECAUTION(S)
Wear self-contained breathing apparatus, rubber boots, and heavy
rubber gloves.
METHODS FOR CLEANING UP
Absorb on sand or vermiculite and place in closed containers for
disposal. Ventilate area and wash spill site after material
pickup is complete.
7 - Handling and Storage
HANDLING
Directions for Safe Handling: Do not breathe vapor. Do not get
in eyes, on skin, on clothing. Avoid prolonged or repeated
exposure.
STORAGE
Conditions of Storage: Keep tightly closed.
8 - Exposure Controls / Personal Protection
ENGINEERING CONTROLS
Use only in a chemical fume hood. Safety shower and eye bath.
GENERAL HYGIENE MEASURES
Wash contaminated clothing before reuse. Wash thoroughly after
handling.
PERSONAL PROTECTIVE EQUIPMENT
Respiratory Protection: Government approved respirator.
Hand Protection: Compatible chemical-resistant gloves.
Eye Protection: Chemical safety goggles.
9 - Physical and Chemical Properties
Appearance Physical State: Clear liquid
Color: Almost colorless
Property Value At Temperature or Pressure
pH N/A
BP/BP Range 96 - 98 掳C
MP/MP Range -52 掳C
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Flash Point N/A
Flammability N/A
Autoignition Temp N/A
Oxidizing Properties N/A
Explosive Properties N/A
Explosion Limits N/A
Vapor Pressure 34.9 mmHg 20 掳C
SG/Density 2.495 g/cm3
Partition Coefficient N/A
Viscosity N/A
Vapor Density 6.05 g/l
Saturated Vapor Conc. N/A
Evaporation Rate N/A
Bulk Density N/A
Decomposition Temp. N/A
Solvent Content N/A
Water Content N/A
Surface Tension N/A
Conductivity N/A
Miscellaneous Data N/A
Solubility N/A
10 - Stability and Reactivity
STABILITY
Stable: Stable.
Materials to Avoid: Strong oxidizing agents, Aluminum, Magnesium,
Reacts violently with:, Potassium.
HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Carbon monoxide, Carbon dioxide,
Hydrogen bromide gas.
HAZARDOUS POLYMERIZATION
Hazardous Polymerization: Will not occur
11 - Toxicological Information
RTECS NUMBER: PA7350000
ACUTE TOXICITY
LD50
Oral
Rat
108 mg/kg
LC50
Inhalation
Rat
40,000 mg/m3
2H
LD50
Subcutaneous
Mouse
3738 MG/KG
LD50
Oral
Rabbit
1000 mg/kg
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LD50
Skin
Rabbit
> 4000 mg/kg
SIGNS AND SYMPTOMS OF EXPOSURE
Exposure can cause: Blood effects. Malaise and cardiac
irregularities. Acts as a simple asphyxiant. Symptoms of
overexposure include dizziness, disorientation, headache,
excitation, central nervous system depression and anesthesia. To
the best of our knowledge, the chemical, physical, and
toxicological properties have not been thoroughly investigated.
ROUTE OF EXPOSURE
Skin Contact: Causes skin irritation.
Skin Absorption: May be harmful if absorbed through the skin.
Eye Contact: Causes eye irritation.
Inhalation: Harmful if inhaled. Vapor or mist is irritating to
the mucous membranes and upper respiratory tract.
Ingestion: Toxic if swallowed.
TARGET ORGAN INFORMATION
Liver. Nerves. Blood. Kidneys. Heart.
CHRONIC EXPOSURE - MUTAGEN
Hamster
1 UMOL/L
Cell Type: lung
Cytogenetic analysis
12 - Ecological Information
No data available.
13 - Disposal Considerations
SUBSTANCE DISPOSAL
Contact a licensed professional waste disposal service to dispose
of this material. Dissolve or mix the material with a combustible
solvent and burn in a chemical incinerator equipped with an
afterburner and scrubber. Observe all federal, state, and local
environmental regulations.
14 - Transport Information
RID/ADR
UN#: 2664
Class: 6.1
PG: III
Proper Shipping Name: Dibromomethane
IMDG
UN#: 2664
Class: 6.1
PG: III
Proper Shipping Name: Dibromomethane
Marine Pollutant: No
Severe Marine Pollutant: No
IATA
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UN#: 2664
Class: 6.1
PG: III
Proper Shipping Name: Dibromomethane
Inhalation Packing Group I: No
15 - Regulatory Information
CLASSIFICATION AND LABELING ACCORDING TO EU DIRECTIVES
ANNEX I INDEX NUMBER: 602-003-00-8
INDICATION OF DANGER: Xn
Harmful.
R-PHRASES: 20 52/53
Harmful by inhalation. Harmful to aquatic organisms, may cause
long-term adverse effects in the aquatic environment.
S-PHRASES: 24 61
Avoid contact with skin. Avoid release to the environment.
Refer to special instructions/safety data sheets.
SWITZERLAND
SWISS POISON CLASS: 4
16 - Other Information
WARRANTY
The above information is believed to be correct but does not
purport to be all inclusive and shall be used only as a guide. The
information in this document is based on the present state of our
knowledge and is applicable to the product with regard to
appropriate safety precautions. It does not represent any
guarantee of the properties of the product. Sigma-Aldrich Inc.,
shall not be held liable for any damage resulting from handling or
from contact with the above product. See reverse side of invoice
or packing slip for additional terms and conditions of sale.
Copyright 2005 Sigma-Aldrich Co. License granted to make unlimited
paper copies for internal use only.
DISCLAIMER
For R&D use only. Not for drug, household or other uses.
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