n-DODECYL MERCAPTAN
Material Safety Data Sheet
Arkema Inc.
1 PRODUCT AND COMPANY IDENTIFICATION
EMERGENCY PHONE NUMBERS:
Thio and Fine Chemicals
Chemtrec: (800) 424-9300 (24hrs) or (703) 527-3887
Arkema Inc.
Medical: Rocky Mountain Poison Control Center
2000 Market Street
(866) 767-5089 (24Hrs)
Philadelphia, PA 19103
Information Telephone Numbers Phone Number Available Hrs
Customer Service 1-800-628-4453 8:30 to 5:30 EST
Product Name n-DODECYL MERCAPTAN
Product Synonym(s) NDM, NDDM
Chemical Family Alkyl Mercaptan
Chemical Formula C12H26S
Chemical Name 1-Dodecanethiol
EPA Reg Num
Product Use
2 COMPOSITION / INFORMATION ON INGREDIENTS
Ingredient Name CAS RegistryNumber Typical % OSHA
n-Dodecyl mercaptan 112-55-0 99.5% Y
The substance(s) marked with a "Y" in the OSHA column, are identified as hazardous chemicals according to the
criteria of the OSHA Hazard Communication Standard (29 CFR 1910.1200)
This material is classified as hazardous under Federal OSHA regulation.
The components of this product are all on the TSCA Inventory list.
3 HAZARDS IDENTIFICATION
Emergency Overview
Colorless liquid; heavy offensive mercaptan odor.
DANGER!
CAUSES EYE BURNS. MAY CAUSE BLINDNESS.
MAY CAUSE NAUSEA, HEADACHE OR DIZZINESS.
Potential Health Effects
Inhalation and skin contact are expected to be the primary routes of occupational exposure to this material. Based on
single exposure animal tests, it is considered to be slightly toxic to practically non-toxic if swallowed or inhaled, no more
than slightly toxic if absorbed through skin, corrosive to eyes and severely irritating to skin. This material has a strong
objectionable odor that may cause nausea, headache, or dizziness. Vapor or aerosol can be severely irritating to the
respiratory tract leading to lung injury. Medical conditions which may be aggravated by overexposure to this material
include lung disease or limited respiratory capacity.
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Material Safety Data Sheet
Arkema Inc.
4 FIRST AID MEASURES
IF IN EYES, immediately flush with plenty of water for at least 15 minutes. Get medical attention immediately.
IF ON SKIN, immediately wash with soap and plenty of water. Remove contaminated clothing and shoes.
Get medical attention if symptoms occur. Wash clothing before reuse. Thoroughly clean shoes before reuse.
IF SWALLOWED, do NOT induce vomiting. Give water to drink. Get medical attention immediately. NEVER
GIVE ANYTHING BY MOUTH TO AN UNCONSCIOUS PERSON.
IF INHALED, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give
oxygen. Get medical attention.
5 FIRE FIGHTING MEASURES
Fire and Explosive Properties
Auto-Ignition Temperature NE
Flash Point >200F Flash Point Method TCC
Flammable Limits- Upper NE
NE
Lower
Extinguishing Media
Use water spray, carbon dioxide, foam or dry chemical.
Fire Fighting Instructions
Use water spray to cool containers exposed to fire. Contain run-off from fire. Fire fighters and others who may
be exposed to products of combustion should wear full fire fighting turn out gear (full Bunker Gear) and self-
contained breathing apparatus (pressure demand NIOSH approved or equivalent). Fire fighting equipment
should be thoroughly decontaminated after use.
Fire and Explosion Hazards
When burned, the following hazardous products of combustion can occur:
Oxides of carbon
Sulfur oxides
Hydrogen sulfide
6 ACCIDENTAL RELEASE MEASURES
In Case of Spill or Leak
Ventilate the area. Contain spill by building a dike using absorbent material. Consult with environmental
engineer or professional to determine if neutralization is appropriate and for handling procedures for residual
materials. Do not use solid bleach for neutralization, as fire or violent reaction can occur. Collect the liquid
and solid absorbent into a drum approved for waste disposal. Flush area with water. Consult a regulatory
specialist to determine appropriate state or local reporting requirements, for assistance in waste
characterization and/or hazardous waste disposal and other requirements listed in pertinent environmental
permits.
7 HANDLING AND STORAGE
Handling
Do not get in eyes, on skin or on clothing.
Keep container closed.
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Material Safety Data Sheet
Arkema Inc.
7 HANDLING AND STORAGE
Use only with adequate ventilation.
Wash thoroughly after handling.
Emptied container retains vapor and product residue. Observe all labeled safeguards until container is
cleaned, reconditioned or destroyed.
Storage
This material is not hazardous under normal storage conditions; however, material should be stored in
closed containers, in a secure area to prevent container damage and subsequent spillage.
8 EXPOSURE CONTROLS / PERSONAL PROTECTION
Engineering Controls
Investigate engineering techniques to reduce exposures below airborne exposure limits. Provide ventilation
if necessary to control exposure levels below airborne exposure limits (see below). If practical, use local
mechanical exhaust ventilation at sources of air contamination such as open process equipment. Consult
ACGIH ventilation manual or NFPA Standard 91 for design of exhaust systems.
Eye / Face Protection
Where there is potential for eye contact, wear a face shield, chemical goggles, and have eye flushing
equipment immediately available.
Skin Protection
Wear appropriate chemical resistant protective clothing and chemical resistant gloves to prevent skin
contact. Consult glove manufacturer to determine appropriate type glove material for given application.
Wear chemical goggles, a face shield, and chemical resistant clothing such as a rubber apron when
splashing may occur. Rinse immediately if skin is contaminated. Remove contaminated clothing promptly
and wash before reuse. Clean protective equipment before reuse. Provide a safety shower at any location
where skin contact can occur. Wash skin thoroughly after handling.
Respiratory Protection
Avoid breathing vapor or mist. When airborne exposure limits are exceeded (see below), use NIOSH
approved respiratory protection equipment appropriate to the material and/or its components. Consult
respirator manufacturer to determine appropriate type equipment for given application. Observe respirator
use limitations specified by NIOSH or the manufacturer. For emergency and other conditions where
exposure limit may be significantly exceeded, use an approved full face positive-pressure, self-contained
breathing apparatus or positive-pressure airline with auxiliary self-contained air supply. Respiratory
protection programs must comply with 29 CFR 搂 1910.134.
Airborne Exposure Guidelines for Ingredients
Exposure Limit Value
n-Dodecyl mercaptan
ACGIH Sensitizer Designator - Y
ACGIH TWA - 0.1 ppm
-Only those components with exposure limits are printed in this section.
-Skin contact limits designated with a "Y" above have skin contact effect. Air sampling alone is insufficient to accurately quantitate
exposure. Measures to prevent significant cutaneous absorption may be required.
-ACGIH Sensitizer designator with a value of "Y" above means that exposure to this material may cause allergic reactions.
-WEEL-AIHA Sensitizer designator with a value of "Y" above means that exposure to this material may cause allergic skin reactions.
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Material Safety Data Sheet
Arkema Inc.
9 PHYSICAL AND CHEMICAL PROPERTIES
Colorless liquid; heavy offensive mercaptan odor.
Appearance/Odor
pH NE
Specific Gravity 0.845 @ 20 C
Vapor Pressure < 0.1 psia
Vapor Density 7
Melting Point NA
Freezing Point -8 C (17.6 F)
Boiling Point 269-285 C (516-545 F)
Solubility In Water Negligible
Solubility in Other Materials Hydrocarbons, alcohols
Evaporation Rate NE
Percent Volatile 100
Viscosity 3.24 cP @ 20 C
Molecular Weight 202.41
Other Physical Data Refractive index: 1.459 @ 20 C
Odor threshold: 0.5 ppm
Critical temperature: 454 C
Critical pressure: 18200 mbar
10 STABILITY AND REACTIVITY
Stability
This material is chemically stable under normal and anticipated storage and handling conditions.
Incompatibility
Contact with combustible materials may enhance the risk of fire. Acids, solid bleach (or strong oxidizers) may
cause violent reaction and fire.
Hazardous Decomposition Products
None known.
11 TOXICOLOGICAL INFORMATION
Toxicological Information
Data on this material and/or its components are summarized below.
Single exposure (acute) studies indicate:
Oral - Slightly Toxic to Practically Non-toxic to Rats (LD50 1,960 - >5,000 mg/kg)
Dermal - No More than Slightly Toxic to Rats (LD0 >2,000 mg/kg)
Inhalation - Practically Non-toxic to Rats (4-hr LC50 >8-9 ppm; no deaths following exposure to saturated vapor)
Eye Irritation - Corrosive to Rabbits
Skin Irritation - Severely Irritating to Rabbits (24-hr exposure, PII 8.0/8.0)
Skin allergy was observed in guinea pigs following repeated exposure in some tests, but not others. A potential
for irritation and allergic reactions in humans has been reported. Following repeated inhalation exposures, rats
and mice exhibited eye, nasal and respiratory tract irritation and breathing difficulties, followed by death which
was associated with lung damage. A repeated inhalation exposure study in mice produced microscopic liver
changes. Following a longer-term inhalation exposure study, rats showed reduced growth, reduced liver and
adrenal function, general congestion of the internal organs and microscopic changes in lungs, liver, kidney,
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Material Safety Data Sheet
Arkema Inc.
11 TOXICOLOGICAL INFORMATION
heart and brain. No birth defects were observed in the offspring of rats exposed by inhalation during pregnancy,
even at amounts which produced significant adverse effects on the mothers. No genetic changes were
observed in tests using bacteria or animal cells.
12 ECOLOGICAL INFORMATION
Ecotoxicological Information
Data on this material and/or its components are summarized below.
This material is practically non-toxic to Daphnia magna, rainbow trout and algae (no effect up to the limit of
solubility).
Chemical Fate Information
Data on this material and/or its components are summarized below.
This material is not readily biodegradable (39.2% after 28-days). The log Pow is 6.18
13 DISPOSAL CONSIDERATIONS
Waste Disposal
Incineration is the recommended method for disposal observing all local, state and federal regulations. Note:
Chemical additions to, processing of, or otherwise altering this material may make this waste management
information incomplete, inaccurate, or otherwise inappropriate. Furthermore, state and local waste disposal
requirements may be more restrictive or otherwise different from federal laws and regulations.
14 TRANSPORT INFORMATION
DOT Name Not Regulated by DOT
DOT Technical Name
DOT Hazard Class
UN Number
DOT Packing Group PG
RQ
DOT Special Information AIR SHIPMENT USE THE FOLLOWING:
Aviation Regulated Liquid, n.o.s.
(n-Dodecyl mercaptan)
9
UN 3334
15 REGULATORY INFORMATION
Hazard Categories Under Criteria of SARA Title III Rules (40 CFR Part 370)
Immediate (Acute) Health Y Fire N
Delayed (Chronic) Health N Reactive N
Sudden Release of Pressure N
The components of this product are all on the TSCA Inventory list.
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n-DODECYL MERCAPTAN
Material Safety Data Sheet
Arkema Inc.
Ingredient Related Regulatory Information:
CERCLA RQ SARA TPQ
SARA Reportable Quantities
n-Dodecyl mercaptan NE
Pennsylvania Right to Know
This product does contain the following chemical(s), as indicated below, currently on the Pennsylvania Hazardous Substance List.
n-Dodecyl mercaptan
16 OTHER INFORMATION
Revision Information
Revision Number 8
08 MAR 2006
Revision Date
Supercedes Revision Dated 11-OCT-2004
Revision Summary
HEIS update
Key
NE= Not Established NA= Not Applicable (R) = Registered Trademark
Arkema Inc. believes that the information and recommendations contained herein (including data and
statements) are accurate as of the date hereof. NO WARRANTY OF FITNESS FOR ANY PARTICULAR
PURPOSE, WARRANTY OF MERCHANTABILITY, OR ANY OTHER WARRANTY, EXPRESSED OR
IMPLIED, IS MADE CONCERNING THE INFORMATION PROVIDED HEREIN. The information provided
herein relates only to the specific product designated and may not be valid where such product is used in
combination with any other materials or in any process. Further, since the conditions and methods of use are
beyond the control of Arkema Inc., Arkema Inc. expressly disclaims any and all liability as to any results
obtained or arising from any use of the product or reliance on such information.
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