SIGMA-ALDRICH
Material Safety Data Sheet
Date Printed: 09/JUN/2005
Date Updated: 14/MAR/2004
Version 1.1
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 1-METHYLIMIDAZOLE, 99%
Product Number M50834
Company Sigma-Aldrich Pty. Ltd.
12 Anella Avenue
Castle Hill NSW 2154
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
1-METHYLIMIDAZOLE 616-47-7 210-484-7 613-035-00-7
Formula C4H6N2
Molecular Weight 82.11 AMU
Synonyms 1H-Imidazole, 1-methyl- (9CI) *
N-Methylimidazole * 1-Methylimidazole
3 - Hazards Identification
SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT
Harmful in contact with skin and if swallowed. Causes burns.
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. Do not induce vomiting.
5 - Fire Fighting Measures
EXTINGUISHING MEDIA
Suitable: Carbon dioxide, dry chemical powder, or appropriate
foam.
SPECIAL RISKS
Specific Hazard(s): Combustible liquid. Emits toxic fumes under
fire conditions.
Explosion Hazards: Forms explosive mixtures in air.
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
Cover with dry lime or soda ash, pick up, keep in a closed
container, and hold for waste 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. Keep away from heat
and open flame. Store in a cool dry place. Handle and store
under nitrogen.
SPECIAL REQUIREMENTS: Hygroscopic.
8 - Exposure Controls / Personal Protection
ENGINEERING CONTROLS
Safety shower and eye bath. Use only in a chemical fume hood.
GENERAL HYGIENE MEASURES
Wash contaminated clothing before reuse. Discard contaminated
shoes. Wash thoroughly after handling.
PERSONAL PROTECTIVE EQUIPMENT
Respiratory Protection: Government approved respirator.
Hand Protection: Compatible chemical-resistant gloves.
Eye Protection: Chemical safety goggles.
Special Protective Measures: Faceshield (8-inch minimum).
9 - Physical and Chemical Properties
Appearance Physical State: Clear liquid
Color: Colorless
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Property Value At Temperature or Pressure
pH 9.5 - 11.5
BP/BP Range 197 - 199 癈
MP/MP Range -60 癈
Flash Point 92 癈 Method: closed cup
Flammability N/A
Autoignition Temp 525 癈
Oxidizing Properties N/A
Explosive Properties N/A
Explosion Limits Lower: 2.7 %
Upper: 15.7 %
Vapor Pressure 0.4 mmHg 20 癈
SG/Density 1.035 g/cm3
Partition Coefficient N/A
Viscosity N/A
Vapor Density N/A
Saturated Vapor Conc. N/A
Evaporation Rate N/A
Bulk Density N/A
Decomposition Temp. N/A
Solvent Content N/A
Water Content < 0.03 %
Surface Tension N/A
Conductivity N/A
Miscellaneous Data N/A
Solubility N/A
10 - Stability and Reactivity
STABILITY
Stable: Stable.
Conditions to Avoid: Moisture.
Materials to Avoid: Carbon dioxide., Strong oxidizing agents
HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Carbon monoxide, Carbon dioxide,
Nitrogen oxides.
HAZARDOUS POLYMERIZATION
Hazardous Polymerization: Will not occur
11 - Toxicological Information
RTECS NUMBER: NI7000000
ACUTE TOXICITY
LD50
Oral
Rat
1,130 mg/kg
LD50
Skin
Rabbit
400 - 640 mg/kg
LD50
Oral
Mouse
1400 mg/kg
Remarks: Behavioral:Convulsions or effect on seizure threshold.
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LD50
Intraperitoneal
Mouse
380 MG/KG
Remarks: Behavioral:Convulsions or effect on seizure threshold.
IRRITATION DATA
Skin
Rabbit
Remarks: Severe irritation effect
Eyes
Rabbit
Remarks: Severe irritation effect
SIGNS AND SYMPTOMS OF EXPOSURE
Material is extremely destructive to tissue of the mucous
membranes and upper respiratory tract, eyes, and skin.
Inhalation may result in spasm, inflammation and edema of the
larynxand bronchi, chemical pneumonitis, and pulmonary edema.
Symptoms of exposure may include burning sensation, coughing,
wheezing, laryngitis, shortness of breath, headache, nausea, and
vomiting.
ROUTE OF EXPOSURE
Skin Contact: Causes burns.
Skin Absorption: Harmful if absorbed through skin.
Eye Contact: Causes burns.
Inhalation: Material is extremely destructive to the tissue of
the mucous membranes and upper respiratory tract. May be harmful
if inhaled.
Ingestion: Harmful if swallowed.
CHRONIC EXPOSURE - MUTAGEN
Mutation test: Histidine reversion (Ames)
12 - Ecological Information
ECOTOXICOLOGICAL EFFECTS
Test Type: LC50 Fish
Species: Leuciscus idus
Time: 96 h
Value: 100 - 220 mg/l
Test Type: EC50 Daphnia
Species: Daphnia magna
Time: 48 h
Value: 268 mg/l
Test Type: EC50 Algae
Species: Scenedesmus subspicatus
Time: 72 h
Value: 180 mg/l
13 - Disposal Considerations
SUBSTANCE DISPOSAL
Contact a licensed professional waste disposal service to dispose
of this material. This combustible material may be burned in a
chemical incinerator equipped with an afterburner and scrubber.
Observe all federal, state, and local environmental regulations.
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14 - Transport Information
RID/ADR
UN#: 3267
Class: 8
PG: II
Proper Shipping Name: Corrosive liquid, basic,
organic, n.o.s.
IMDG
UN#: 3267
Class: 8
PG: II
Proper Shipping Name: CORROSIVE LIQUID, BASIC,
ORGANIC, N.O.S.
Marine Pollutant: No
Severe Marine Pollutant: No
Technical Name: Required
IATA
UN#: 3267
Class: 8
PG: II
Proper Shipping Name: Corrosive liquid, basic,
organic, n.o.s.
Inhalation Packing Group I: No
Technical Name: Required
15 - Regulatory Information
CLASSIFICATION AND LABELING ACCORDING TO EU DIRECTIVES
ANNEX I INDEX NUMBER: 613-035-00-7
INDICATION OF DANGER: C
Corrosive.
R-PHRASES: 21/22 34
Harmful in contact with skin and if swallowed. Causes burns.
S-PHRASES: 26 36 45
In case of contact with eyes, rinse immediately with plenty of
water and seek medical advice. Wear suitable protective
clothing. In case of accident or if you feel unwell, seek
medical advice immediately (show the label where possible).
COUNTRY SPECIFIC INFORMATION
Germany
WGK: 1
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.
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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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