SIGMA-ALDRICH
Material Safety Data Sheet
Date Printed: 16/AUG/2005
Date Updated: 25/JUN/2004
Version 1.5
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 ETHANETHIOL, 97%
Product Number E3708
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
ETHANETHIOL 75-08-1 200-837-3 016-022-00-9
Formula C2H6S
Molecular Weight 62.13 AMU
Synonyms Aethanethiol (German) * Aethylmercaptan (German)
* Etantiolo (Italian) * Ethaanthiol (Dutch) *
Ethanethiol (OSHA) * Ethyl hydrosulfide *
Ethylmercaptaan (Dutch) * Ethyl mercaptan
(ACGIH:OSHA) * Ethylmerkaptan (Czech) * Ethyl
sulfhydrate * Ethyl thioalcohol * Etilmercaptano
(Italian) * LPG ethyl mercaptan 1010 *
Thioethanol * Thioethyl alcohol
3 - Hazards Identification
SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT
Highly flammable. Harmful by inhalation. Very toxic 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 contact, immediately wash skin with soap and copious
amounts of water.
AFTER EYE CONTACT
In case of contact, immediately flush eyes with copious amounts
of water for at least 15 minutes.
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.
SPECIAL PROTECTIVE EQUIPMENT FOR FIREFIGHTERS
Wear self-contained breathing apparatus and protective clothing
to prevent contact with skin and eyes.
SPECIFIC METHOD(S) OF FIRE FIGHTING
Use water spray to cool fire-exposed containers.
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 respirator, chemical safety goggles, 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: Avoid breathing vapor. Avoid
contact with eyes, skin, and clothing. Avoid prolonged or
repeated exposure.
STORAGE
Conditions of Storage: Keep tightly closed. Keep away from heat,
sparks, and open flame.
Incompatible Materials: Avoid contact with metals.
SPECIAL REQUIREMENTS: Refrigerate before opening.
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
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reuse.
EXPOSURE LIMITS
Country Source Type Value
Poland NDS 1 MG/M3
Poland NDSCh 2 MG/M3
Poland NDSP -
EXPOSURE LIMITS - DENMARK
Source Type Value
OEL TWA 1 mg/m3
0.5 ppm
EXPOSURE LIMITS - GERMANY
Source Type Value
TRGS 900 OEL 1 mg/m3
0.5 ppm
Remarks: =1=
EXPOSURE LIMITS - NORWAY
Source Type Value
OEL 1 mg/m3
0.5 ppm
EXPOSURE LIMITS - SWITZERLAND
Source Type Value
OEL OEL 1.3 mg/m3
0.5 ppm
EXPOSURE LIMITS - UNITED KINGDOM
Source Type Value
OEL TWA 1.3 mg/m3
0.5 ppm
OEL STEL 2 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
Odor: Stench.
Property Value At Temperature or Pressure
pH N/A
BP/BP Range 34 - 37 藲C
MP/MP Range N/A
Flash Point -45 藲C Method: closed cup
Flammability N/A
Autoignition Temp 299 藲C
Oxidizing Properties N/A
Explosive Properties N/A
Explosion Limits Lower: 2.8 %
Upper: 18.2 %
Vapor Pressure 439.967 mmHg 20 藲C
SG/Density 0.84 g/cm3
Partition Coefficient N/A
Viscosity N/A
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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 N/A
10 - Stability and Reactivity
STABILITY
Materials to Avoid: Oxidizing agents, Metals.
HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Carbon monoxide, Carbon dioxide,
Sulfur oxides.
HAZARDOUS POLYMERIZATION
Hazardous Polymerization: Will not occur
11 - Toxicological Information
RTECS NUMBER: KI9625000
ACUTE TOXICITY
LD50
Oral
Rat
682 mg/kg
Remarks: Behavioral:Muscle weakness. Behavioral:Ataxia. Lungs,
Thorax, or Respiration:Cyanosis.
LC50
Inhalation
Rat
4,420 ppm
4H
Remarks: Peripheral Nerve and Sensation:Spastic paralysis with
or without sensory change. Behavioral:Excitement. Lungs, Thorax,
or Respiration:Cyanosis.
LD50
Intraperitoneal
Rat
226 MG/KG
Remarks: Behavioral:Muscle weakness. Behavioral:Ataxia. Lungs,
Thorax, or Respiration:Cyanosis.
LC50
Inhalation
Mouse
2,770 ppm
4H
Remarks: Behavioral:Excitement. Behavioral:Change in motor
activity (specific assay). Lungs, Thorax, or
Respiration:Cyanosis.
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IRRITATION DATA
Skin
Rabbit
500 mg
24H
Remarks: Mild irritation effect
Eyes
Rabbit
84 mg
Eyes
Rabbit
100 mg
24H
Remarks: Moderate irritation effect
SIGNS AND SYMPTOMS OF EXPOSURE
Exposure can cause: Nausea, headache, and vomiting. Prolonged
exposure can cause: Narcotic effect.
ROUTE OF EXPOSURE
Skin Contact: May cause skin irritation.
Skin Absorption: May be harmful if absorbed through the skin.
Eye Contact: Causes eye irritation.
Inhalation: Harmful if inhaled. Material may be irritating to
mucous membranes and upper respiratory tract.
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#: 2363
Class: 3
PG: I
Proper Shipping Name: Ethyl mercaptan
IMDG
UN#: 2363
Class: 3
PG: I
Proper Shipping Name: Ethyl mercaptan
Marine Pollutant: Yes
Severe Marine Pollutant: No
IATA
UN#: 2363
Class: 3
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PG: I
Proper Shipping Name: Ethyl mercaptan
Inhalation Packing Group I: No
15 - Regulatory Information
CLASSIFICATION AND LABELING ACCORDING TO EU DIRECTIVES
ANNEX I INDEX NUMBER: 016-022-00-9
INDICATION OF DANGER: F Xn N
Highly Flammable. Harmful. Dangerous for the environment.
R-PHRASES: 11 20 50/53
Highly flammable. Harmful by inhalation. Very toxic to aquatic
organisms, may cause long-term adverse effects in the aquatic
environment.
S-PHRASES: 16 25 60 61
Keep away from sources of ignition - no smoking. Avoid contact
with eyes. This material and its container must be disposed of
as hazardous waste. Avoid release to the environment. Refer to
special instructions/safety data sheets.
COUNTRY SPECIFIC INFORMATION
Germany
WGK: 3
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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