SIGMA-ALDRICH
Material Safety Data Sheet
Date Printed: 31/JUL/2005
Date Updated: 14/MAR/2004
Version 1.3
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 METHYL SULFIDE, 99+% (DMS) (WORLDWIDE
EXCEPT NORTH AMERICA)
Product Number 528021
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
DIMETHYL SULFIDE 75-18-3 200-846-2 None
Formula C2H6S
Molecular Weight 62.13 AMU
Synonyms Dimethyl monosulfide * Dimethylsulfid (Czech) *
Dimethyl sulphide * Exact-S * Methane, thiobis-
(9CI) * Methyl monosulfide * Methyl sulphide *
Methyl thioether * Sulfure de methyle (French) *
2-Thiapropane * Thiobis(methane)
3 - Hazards Identification
SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT
Highly flammable. Harmful if swallowed. Irritating to respiratory
system and skin. Risk of serious damage to eyes.
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.
5 - Fire Fighting Measures
EXTINGUISHING MEDIA
Suitable: Water spray. Carbon dioxide, dry chemical powder, or
appropriate foam.
SPECIAL RISKS
Specific Hazard(s): Flammable liquid. Emits toxic fumes under
fire conditions.
Explosion Hazards: Vapor may travel considerable distance to
source of ignition and flash back. Container explosion may occur
under fire conditions. 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. Shut off all sources of ignition.
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, sand, or soda ash. Place in covered
containers using non-sparking tools and transport outdoors.
Ventilate area and wash spill site after material pickup is
complete.
7 - Handling and Storage
HANDLING
Directions for Safe Handling: Do not breathe vapor. Avoid
contact with eyes, skin, and clothing. Avoid prolonged or
repeated exposure.
STORAGE
Conditions of Storage: Keep container closed. Keep away from
heat, sparks, and open flame.
Store at 2-8掳C
SPECIAL REQUIREMENTS: Handle and store under inert gas.
Refrigerate before opening. May develop pressure. Open
carefully. Hygroscopic.
8 - Exposure Controls / Personal Protection
ENGINEERING CONTROLS
Safety shower and eye bath. Use nonsparking tools. Mechanical
exhaust required.
GENERAL HYGIENE MEASURES
Wash thoroughly after handling. Wash contaminated clothing before
reuse.
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EXPOSURE LIMITS - SWEDEN
Source Type Value
LLV (Level1 ppm
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: Colorless
Property Value At Temperature or Pressure
pH N/A
BP/BP Range 38 掳C 760 mmHg
MP/MP Range -98 掳C
Flash Point -36 掳C Method: closed cup
Flammability N/A
Autoignition Temp 206 掳C
Oxidizing Properties N/A
Explosive Properties N/A
Explosion Limits Lower: 2.2 %
Upper: 19.7 %
Vapor Pressure 1356.608 mmHg 402.7455 掳C 20 掳C
3 mmHg
SG/Density 0.846 g/cm3
Partition Coefficient N/A
Viscosity N/A
Vapor Density 2.1 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 Solubility in Water:Insoluble.
Other Solvents: ETHANOL, ETHER
10 - Stability and Reactivity
STABILITY
Stable: Stable.
Materials to Avoid: Strong oxidizing agents.
HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Carbon monoxide, Carbon dioxide,
Sulfur oxides, Hydrogen sulfide gas.
HAZARDOUS POLYMERIZATION
Hazardous Polymerization: Will not occur
11 - Toxicological Information
RTECS NUMBER: PV5075000
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ACUTE TOXICITY
LD50
Oral
Rat
535 mg/kg
LD50
Oral
Rat
3300 mg/kg
Remarks: Behavioral:General anesthetic. Behavioral:Change in
motor activity (specific assay). Behavioral:Irritability.
LC50
Inhalation
Rat
40,250 ppm
Remarks: Lungs, Thorax, or Respiration:Other changes.
Gastrointestinal:Hypermotility, diarrhea. Kidney, Ureter,
Bladder:Urine volume increased.
LD50
Oral
Mouse
3700 mg/kg
Remarks: Behavioral:Change in motor activity (specific assay).
Behavioral:Antipsychotic. Nutritional and Gross
Metabolic:Changes in:Other changes.
LC50
Inhalation
Mouse
31.62 mg/m3
LD50
Intraperitoneal
Mouse
8 GM/KG
LD50
Skin
Rabbit
> 5000 mg/kg
IRRITATION DATA
Skin
Rabbit
500 mg
24H
Remarks: Mild irritation effect
Eyes
Rabbit
0.25 mg
24H
Remarks: Severe irritation effect
SIGNS AND SYMPTOMS OF EXPOSURE
Exposure can cause: Nausea, headache, and vomiting.
ROUTE OF EXPOSURE
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Skin Contact: Causes skin irritation.
Skin Absorption: May be harmful if absorbed through the skin.
Eye Contact: Causes severe eye irritation.
Inhalation: Material is irritating to mucous membranes and upper
respiratory tract. May be harmful if inhaled.
Ingestion: Harmful if swallowed.
12 - Ecological Information
No data available.
13 - Disposal Considerations
SUBSTANCE DISPOSAL
Contact a licensed professional waste disposal service to dispose
of this material. Burn in a chemical incinerator equipped with an
afterburner and scrubber but exert extra care in igniting as this
material is highly flammable. Observe all federal, state, and
local environmental regulations.
14 - Transport Information
RID/ADR
UN#: 1164
Class: 3
PG: II
Proper Shipping Name: Dimethyl sulphide
IMDG
UN#: 1164
Class: 3
PG: II
Proper Shipping Name: Dimethyl sulphide
Marine Pollutant: No
Severe Marine Pollutant: No
IATA
UN#: 1164
Class: 3
PG: II
Proper Shipping Name: Dimethyl sulphide
Inhalation Packing Group I: No
15 - Regulatory Information
CLASSIFICATION AND LABELING ACCORDING TO EU DIRECTIVES
INDICATION OF DANGER: F Xn
Highly Flammable. Harmful.
R-PHRASES: 11 22 37/38 41
Highly flammable. Harmful if swallowed. Irritating to
respiratory system and skin. Risk of serious damage to eyes.
S-PHRASES: 7 9 16 29 33 36/39
Keep container tightly closed. Keep container in a
well-ventilated place. Keep away from sources of ignition - no
smoking. Do not empty into drains. Take precautionary measures
against static discharges. Wear suitable protective clothing
and eye/face protection.
COUNTRY SPECIFIC INFORMATION
Germany
WGK: 2 (self-classification)
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SWITZERLAND
SWISS POISON CLASS: 2
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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