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MSDS Material Safety Data Sheet
CAS

14970-87-7

File Name: arkemainc_com---995.asp
                                                 1,8-DIMERCAPTO-3,6-DIOXAOCTANE (DMDO)
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 1,8-DIMERCAPTO-3,6-DIOXAOCTANE (DMDO)
Product Synonym(s)

Chemical Family
Chemical Formula
Chemical Name 1,8-DIMERCAPTO-3,6-DIOXAOCTANE (DMDO)
EPA Reg Num
Product Use MODIFIER (POLYMERS, RESINS)



2 COMPOSITION / INFORMATION ON INGREDIENTS

Ingredient Name CAS RegistryNumber Typical % OSHA
1,8-Dimercapto-3,6-dioxaoctane 14970-87-7 100% 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
Slightly yellow liquid with bad odor.
CAUTION!
MAY CAUSE EYE IRRITATION.
MAY BE HARMFUL IF SWALLOWED.


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 if swallowed or inhaled, slightly irritating to eyes and
non-irritating to skin.


4 FIRST AID MEASURES

IF IN EYES, immediately flush with plenty of water. Get medical attention if irritation persists.




Product Code: 100400 Page 1
Revision: 4 Issued: 25 JUL 2006 of 6
1,8-DIMERCAPTO-3,6-DIOXAOCTANE (DMDO)
Material Safety Data Sheet
Arkema Inc.

4 FIRST AID MEASURES

IF ON SKIN, immediately flush with plenty of water. Get medical attention if irritation persists.

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.


5 FIRE FIGHTING MEASURES

Fire and Explosive Properties
Auto-Ignition Temperature
Flash Point 129 C Closed Cup Flash Point Method
Flammable Limits- Upper
Lower
Extinguishing Media
Use dry powder.
Fire Fighting Instructions
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:
Hydrogen sulfide
Sulfur oxides
Oxides of carbon

6 ACCIDENTAL RELEASE MEASURES

In Case of Spill or Leak
Contain spill. Stop leak at source if this can be done safely. Ventilate area. Nonessential personnel should
leave the area until cleanup is completed. Pump liquid into DOT-approved drums for disposal. Absorb
remaining liquid onto inert absorbent and place in DOT approved drums for disposal. Wash area with water.
Keep concentrate and wash water from entering sewers or waterways. 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 taste or swallow. Do not get in eyes, on skin or clothing. Avoid breathing vapor or mist. Keep
container closed. Use only with adequate ventilation. Wash thoroughly after handling.

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.



Product Code: 100400 Page 2
Revision: 4 Issued: 25 JUL 2006 of 6
1,8-DIMERCAPTO-3,6-DIOXAOCTANE (DMDO)
Material Safety Data Sheet
Arkema Inc.

8 EXPOSURE CONTROLS / PERSONAL PROTECTION

Engineering Controls
Investigate engineering techniques to reduce exposures. Provide ventilation if necessary to minimize
exposures. If practical, use local mechanical exhaust ventilation at sources of air contamination such as
open process equipment.

Eye / Face Protection
Where there is potential for eye contact, wear chemical goggles and have eye flushing equipment 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
Where airborne exposure is likely, use NIOSH approved respiratory protection equipment appropriate to the
material and/or its components. If exposures cannot be kept at a minimum with engineering controls, consult
respirator manufacturer to determine appropriate type equipment for a given application. Observe respirator
use limitations specified by NIOSH or the manufacturer. For emergency and other conditions where there
may be a potential for significant exposure, 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

The components of this product have no established Airborne Exposure Guidelines
-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.


9 PHYSICAL AND CHEMICAL PROPERTIES

Slightly yellow liquid with bad odor.
Appearance/Odor
pH NE
Specific Gravity 1.140 @ 25C
Vapor Pressure 0.00032 hPa (mbar) @ 20C
Vapor Density 1140 kg/m3 @ 25C
Melting Point NA
Freezing Point NE
Boiling Point 225 C
Solubility In Water 1.5 -2 % @ 20C
Molecular Weight 182.30
Other Physical Data Practically not bioaccumulable: log Pow = 0.66 (calculated)




Product Code: 100400 Page 3
Revision: 4 Issued: 25 JUL 2006 of 6
1,8-DIMERCAPTO-3,6-DIOXAOCTANE (DMDO)
Material Safety Data Sheet
Arkema Inc.

10 STABILITY AND REACTIVITY


Stability
This material is chemically stable under normal and anticipated storage and handling conditions.

Incompatibility
Caustic soda, Mineral acids
Hazardous Decomposition Products
Thermal decomposition giving flammable and toxic products:
Hydrogen sulfide, Oxides of sulfur, Carbon oxides

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 Rats (LD50 835 mg/kg)
Inhalation - Slightly Toxic to Rats (4-hr LC50 1.34 mg/l)
Eye Irritation - Slightly Irritating to Rabbits
Skin Irritation - Non-irritating to Rabbits No skin allergy was observed in guinea pigs following repeated
exposure. No genetic changes were observed in tests using bacteria.

12 ECOLOGICAL INFORMATION

Ecotoxicological Information
Data on this material and/or its components are summarized below.

This material is moderately toxic to Daphnia magna (48-hr EC50 1.7 mg/l).
Chemical Fate Information
Data on this material and/or its components are summarized below.

This material is not readily biodegradable (<10% after 28-days).

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.




Product Code: 100400 Page 4
Revision: 4 Issued: 25 JUL 2006 of 6
1,8-DIMERCAPTO-3,6-DIOXAOCTANE (DMDO)
Material Safety Data Sheet
Arkema Inc.

14 TRANSPORT INFORMATION

DOT Name Non Regulated by DOT
DOT Technical Name
DOT Hazard Class
UN Number
DOT Packing Group PG
RQ
DOT Special Information RID/ADR (Europe):
Environmentally hazardous substance, liquid, n.o.s.
(1,8-Dimercapto-3,6-Dioxaoctane)
Class 9
UN 3082
PG III


15 REGULATORY INFORMATION

Hazard Categories Under Criteria of SARA Title III Rules (40 CFR Part 370)
Immediate (Acute) Health Y Fire N
Reactive
Delayed (Chronic) Health N N
Sudden Release of Pressure N
The components of this product are all on the TSCA Inventory list.


Ingredient Related Regulatory Information:
CERCLA RQ SARA TPQ
SARA Reportable Quantities
1,8-Dimercapto-3,6-dioxaoctane NE NE


16 OTHER INFORMATION


Revision Information

Revision Number 4
25 JUL 2006
Revision Date
Supercedes Revision Dated 11-OCT-2004
Revision Summary
Reviewed and revised all sections.


Key
NE= Not Established NA= Not Applicable (R) = Registered Trademark




Product Code: 100400 Page 5
Revision: 4 Issued: 25 JUL 2006 of 6
1,8-DIMERCAPTO-3,6-DIOXAOCTANE (DMDO)
Material Safety Data Sheet
Arkema Inc.
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.




Product Code: 100400 Page 6
Revision: 4 Issued: 25 JUL 2006 of 6

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