SIGMA-ALDRICH
MATERIAL SAFETY DATA SHEET
Date Printed: 03/30/2006
Date Updated: 01/30/2006
Version 1.6
Section 1 - Product and Company Information
Product Name 1,2-ETHANEDITHIOL
Product Number 02390
Brand FLUKA
Company Sigma-Aldrich
Address 3050 Spruce Street
SAINT LOUIS MO 63103 US
Technical Phone: 800-325-5832
Fax: 800-325-5052
Emergency Phone: 314-776-6555
Section 2 - Composition/Information on Ingredient
Substance Name CAS # SARA 313
1,2-ETHANEDITHIOL 540-63-6 No
Formula C2H6S2
Synonyms 1,2-Dimercaptoethane * Dithioethyleneglycol *
Dithioglycol * Ethylene dimercaptan *
alpha-Ethylene dimercaptan * Ethylene
dithioglycol * Ethylenedithiol * Ethyl
hydropersulfide
RTECS Number: KI3325000
Section 3 - Hazards Identification
EMERGENCY OVERVIEW
Combustible (USA) Flammable (EU). Toxic.
Harmful in contact with skin and if swallowed. Toxic by
inhalation. Irritating to eyes.
Stench. Combustible.
HMIS RATING
HEALTH: 2
FLAMMABILITY: 2
REACTIVITY: 0
NFPA RATING
HEALTH: 2
FLAMMABILITY: 2
REACTIVITY: 0
For additional information on toxicity, please refer to Section 11.
Section 4 - First Aid Measures
ORAL EXPOSURE
If swallowed, wash out mouth with water provided person is
conscious. Call a physician immediately.
INHALATION EXPOSURE
If inhaled, remove to fresh air. If not breathing give
artificial respiration. If breathing is difficult, give oxygen.
DERMAL EXPOSURE
In case of skin contact, flush with copious amounts of water for
at least 15 minutes. Remove contaminated clothing and shoes.
Call a physician.
EYE EXPOSURE
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.
Section 5 - Fire Fighting Measures
FLASH POINT
113 掳F 45 掳C Method: closed cup
AUTOIGNITION TEMP
N/A
FLAMMABILITY
N/A
EXTINGUISHING MEDIA
Suitable: Water spray. Carbon dioxide, dry chemical powder, or
appropriate foam.
FIREFIGHTING
Protective Equipment: Wear self-contained breathing apparatus
and protective clothing to prevent contact with skin and eyes.
Specific Hazard(s): Combustible liquid. Emits toxic fumes under
fire conditions.
Specific Method(s) of Fire Fighting: Use water spray to cool
fire-exposed containers.
EXPOSURE HAZARD(S)
Material: Toxic. Irritant.
Section 6 - Accidental Release Measures
PROCEDURE 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.
Section 7 - Handling and Storage
HANDLING
User Exposure: Do not breathe vapor. Avoid prolonged or repeated
exposure. Do not get in eyes, on skin, on clothing.
STORAGE
Suitable: Keep tightly closed.
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Section 8 - Exposure Controls / PPE
ENGINEERING CONTROLS
Use only in a chemical fume hood. Safety shower and eye bath.
PERSONAL PROTECTIVE EQUIPMENT
Respiratory: Use respirators and components tested and approved
under appropriate government standards such as NIOSH (US) or CEN
(EU). Where risk assessment shows air-purifying respirators are
appropriate use a full-face respirator with multi-purpose
combination (US) or type ABEK (EN 14387) respirator cartridges as
a backup to engineering controls. If the respirator is the sole
means of protection, use a full-face supplied air respirator.
Hand: Compatible chemical-resistant gloves.
Eye: Chemical safety goggles.
GENERAL HYGIENE MEASURES
Wash contaminated clothing before reuse. Wash thoroughly after
handling.
Section 9 - Physical/Chemical Properties
Appearance Physical State: Clear liquid
Color: Colorless
Odor: Stench.
Property Value At Temperature or Pressure
Molecular Weight 94.2 AMU
pH N/A
BP/BP Range 146.0 - 148.0 掳C
MP/MP Range - 41.0 掳C
Freezing Point N/A
Vapor Pressure 4.8 mmHg 20 掳C
Vapor Density > 1 g/l
Saturated Vapor Conc. N/A
SG/Density 1.12 g/cm3
Bulk Density N/A
Odor Threshold N/A
Volatile% N/A
VOC Content N/A
Water Content < 0.4 %
Solvent Content N/A
Evaporation Rate N/A
Viscosity N/A
Surface Tension N/A
Partition Coefficient N/A
Decomposition Temp. N/A
Flash Point 113 掳F 45 掳C Method: closed cup
Explosion Limits N/A
Flammability N/A
Autoignition Temp N/A
Refractive Index 1.558
Optical Rotation N/A
Miscellaneous Data N/A
Solubility N/A
N/A = not available
Section 10 - Stability and Reactivity
STABILITY
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Stable: Stable.
Materials to Avoid: Bases, Oxidizing agents, Reducing agents,
Alkali metals.
HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Carbon monoxide, Carbon dioxide,
Sulfur oxides, Hydrogen sulfide gas.
HAZARDOUS POLYMERIZATION
Hazardous Polymerization: Will not occur
Section 11 - Toxicological Information
ROUTE OF EXPOSURE
Skin Contact: May cause skin irritation.
Skin Absorption: Harmful if absorbed through skin.
Eye Contact: Causes eye irritation.
Inhalation: Toxic if inhaled. Material may be irritating to
mucous membranes and upper respiratory tract.
Ingestion: Harmful if swallowed.
SIGNS AND SYMPTOMS OF EXPOSURE
Nausea, headache, and vomiting. Exposure can cause:
TOXICITY DATA
Oral
Rat
342 mg/kg
LD50
Skin
Rabbit
1,189 mg/kg
LD50
4H
Inhalation
Rat
1,171 mg/m3
LC50
Oral
Mouse
342 mg/kg
LD50
Intraperitoneal
Mouse
50 MG/KG
LD50
Intravenous
Mouse
56200 UG/KG
LD50
IRRITATION DATA
Eyes
Rabbit
Remarks: Moderate irritation effect
Section 12 - Ecological Information
No data available.
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Section 13 - Disposal Considerations
APPROPRIATE METHOD OF DISPOSAL OF SUBSTANCE OR PREPARATION
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.
Section 14 - Transport Information
DOT
Proper Shipping Name: Mercaptans, liquid, toxic,
flammable, n.o.s. [or] Mercaptan mixtures, liquid,
toxic, flammable, n.o.s.[, flash point not less than
23 degrees C]
UN#: 3071
Class: 6.1
Packing Group: Packing Group II
Hazard Label: Toxic substances.
Hazard Label: Flammable liquid
PIH: Not PIH
IATA
Proper Shipping Name: Mercaptans, liquid, toxic,
flammable, n.o.s.
IATA UN Number: 3071
Hazard Class: 6.1
Packing Group: II
Section 15 - Regulatory Information
EU ADDITIONAL CLASSIFICATION
Symbol of Danger: T
Indication of Danger: Toxic.
R: 10-21/22-23-36
Risk Statements: Flammable. Harmful in contact with skin and if
swallowed. Toxic by inhalation. Irritating to eyes.
S: 26-36/37-45
Safety Statements: In case of contact with eyes, rinse
immediately with plenty of water and seek medical advice. Wear
suitable protective clothing and gloves. In case of accident or
if you feel unwell, seek medical advice immediately (show the
label where possible).
US CLASSIFICATION AND LABEL TEXT
Indication of Danger: Combustible (USA) Flammable (EU). Toxic.
Risk Statements: Harmful in contact with skin and if swallowed.
Toxic by inhalation. Irritating to eyes.
Safety Statements: In case of contact with eyes, rinse
immediately with plenty of water and seek medical advice. Wear
suitable protective clothing and gloves. In case of accident or
if you feel unwell, seek medical advice immediately (show the
label where possible).
US Statements: Stench. Combustible.
UNITED STATES REGULATORY INFORMATION
SARA LISTED: No
TSCA INVENTORY ITEM: Yes
CANADA REGULATORY INFORMATION
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WHMIS Classification: This product has been classified in
accordance with the hazard criteria of the CPR, and the MSDS
contains all the information required by the CPR.
DSL: Yes
NDSL: No
Section 16 - Other Information
DISCLAIMER
For R&D use only. Not for drug, household or other uses.
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 2006 Sigma-Aldrich Co. License granted to make unlimited
paper copies for internal use only.
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