MATERIAL SAFETY DATA SHEET MSDS #GCC3-4
DIMETHYL SULFONE (DMSO2) August 20. 2004
1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME: Dimethyl Sulfone (DMSO2) CHEMICAL NAME: Dimethyl Sulfone
SYNONYMS/TRADE NAMES: Methyl sulfone, Methanol sulfonylibis, MSM, Methylsulfonylmethane
MOLECULAR FORMULA: (CH3)2SO2 MOLECULAR WEIGHT: 94.13
MANUFACTURER/SUPPLIER:
GAYLORD CHEMICAL CORPORATION
P. O. BOX 1209
SLIDELL, LA 70459-1209
EMERGENCY HEALTH, SAFETY & ENVIRONMENTAL INFORMATION, CALL:
Gaylord Chemical Corporation (985) 649-5464 (8:00 am - 5:00 pm CST)
(985) 732-8662 (Nights and Weekends)
EMERGENCY TRANSPORTATION INFORMATION, CALL:
CHEMTREC (800) 424-9300
OTHER INFORMATION, CALL: Gaylord Chemical Corporation (985) 649-5464
2. COMPOSITION/INFORMATION ON INGREDIENTS
Ingredients CAS No Weight % OSHA PEL ACGIH TLV庐
Dimethyl Sulfone 67-71-0 鈮?99% Not established Not established
NTP/IARC/OSHA CARCINOGEN: No
EC Classifications: None Required
3. HAZARDS IDENTIFICATION
WARNING! COMBUSTIBLE LIQUID AND VAPOR
PHYSICAL APPEARANCE: White crystalline flakes or powder
ODOR: Essentially odorless
EFFECTS OF OVEREXPOSURE:
Inhalation: A nuisance dust that may cause respiratory irritation due to its physical
form.
Eyes: The physical form of the chemical could be mechanically irritating to the
eye.
Skin: Non-irritating.
Ingestion: Undetermined in humans but generally considered to be of low toxicity (oral
rat LD50: 17,000mg/kg).
HMIS AND NFPA HAZARD RATINGS: Health - 1, Flammability - 1, Chemical Reactivity - 0
Note: HMIS and NFPA ratings involve data and interpretations that may vary from company to company. In both cases the
lower the number, the less the hazard. They are intended only for rapid, general identification of the magnitude of the specific
hazard. To deal adequately with the safe handling of this material, all the information contained in this MSDS must be
considered.
4. FIRST AID MEASURES
Eye Contact:
Flush thoroughly with running water (including under eyelids) for at least 15 minutes. If
irritation persists after flushing, seek medical attention.
Skin Contact:
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MATERIAL SAFETY DATA SHEET MSDS #GCC3-4
DIMETHYL SULFONE (DMSO2) August 20, 2004
Wash skin if irritation occurs.
Ingestion:
Do not induce vomiting. Allow the victim to rinse his mouth and then to drink 2-4 cupfuls of
water. If significant amounts of the product have been ingested, consult a physician.
Note to Physicians: Treat symptomatically and supportively.
Inhalation:
Remove to fresh air. If breathing has stopped, provide artificial respiration and seek medical
attention.
5. FIRE-FIGHTING MEASURES
Flashpoint and method:
143oC (290oF) closed cup
Flammable Limits (% in air):
LEL: Undetermined
UEL: Undetermined
Autoignition Temperature:
Undetermined
Extinguishing Media:
Foam, carbon dioxide, dry powder, and water spray.
Special protective equipment for fire-fighters:
Wear a Self-Contained Breathing Apparatus (SCBA).
Special Exposure Hazards:
Burning dimethyl sulfone produces poisonous gases (sulfur oxides).
6. ACCIDENTAL RELEASE MEASURES
Spill, Leak, or Release:
Note: Review sections 3, 4, 5 and 8 of this MSDS before proceeding with clean up. Use appropriate
PERSONAL PROTECTIVE EQUIPMENT during clean up.
Initial Containment: If a spill occurs, immediately consult your environmental supervisor.
Spill Clean-up Methods:
Spills may be swept up and incinerated or diluted and flushed to wastewater treatment. Do not
allow the material to enter streams or waterways.
7. HANDLING AND STORAGE
Usage/Handling Precautions:
Avoid contact with eyes or skin. Do not smoke in areas of storage or use.
Skin or clothing that becomes contaminated should be immediately washed or showered.
Storage Precautions:
Store away from strong oxidizing agents in a well ventilated cool and dry location.
Protect containers from physical damage.
8. EXPOSURE CONTROLS/PERSONAL PROTECTION
Exposure Limits:
ACGIH Threshold Limit Value (TLV): not established
OSHA (USA) Permissible Exposure Limit (PEL, 1989 Table Z-1-A values or section-specific
standards): not established
Ventilation:
Use adequate general or local exhaust ventilation to keep airborne concentration low.
Respiratory Protection:
Any particulate respirator in dusty atmospheres.
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MATERIAL SAFETY DATA SHEET MSDS #GCC3-4
DIMETHYL SULFONE (DMSO2) August 20, 2004
Eye Protection:
Safety glasses/ chemical goggles. Eye wash stations are desirable near use areas.
Skin Protection:
Any rubber or vinyl gloves.
General: Other protective equipment such as face shields, aprons, rubber boots or rubber suits
may be needed in some situations.
Recommended Decontamination Facilities:
Water washing facilities
9. PHYSICAL AND CHEMICAL PROPERTIES
Physical Form: White crystalline powder or flakes
Odor: Essentially odorless
Specific Gravity: 1.450-1.455 (260C)
Vapor Pressure: Not applicable
Vapor Density (Air = 1): Not applicable
Evaporation rate: Not applicable
% Volatiles: 0
Boiling Point: 248oC (478oF)
Freezing Point: 108-110oC (225-230oF)
Viscosity: Not applicable
Solubility in water: 33.9% w/w at 79oF
Flammability properties: See section 5
10. STABILITY AND REACTIVITY
Stability: Stable under normal temperature and storage conditions.
Materials to avoid: Strong oxidizing agents, perchloric acid and perchlorates.
Hazardous decomposition products: Sulfur dioxide and carbon monoxide fumes can be
evolved.
Hazardous polymerization: Will not occur
11. TOXICOLOGICAL INFORMATION
Data for Dimethyl Sulfone:
Acute Toxicity Data:
Oral LD-50 (male rat): 17,000 mg/kg
Inhalation: Not available
Skin: Not available
Eye: Not available
Chronic/Subchronic Toxicity Data: Not available
Mutagenicity: Not available
Reproduction: Not available
Teratology: Not available
Carcinogenicity: None of the components present in this material at concentrations equal or greater
than 0.1% are listed by IARC, NTP, OSHA, or ACGIH as a carcinogen.
12. ECOLOGICAL INFORMATION
Aquatic Toxicity: Not available
Chemical Fate Information: Not available
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MATERIAL SAFETY DATA SHEET MSDS #GCC3-4
DIMETHYL SULFONE (DMSO2) August 20, 2004
13. DISPOSAL CONSIDERATIONS
Disposal Methods
See section 6. Consult federal, state or local authorities for proper disposal procedures.
14. TRANSPORT INFORMATION
DOT (USA) Status:
Proper shipping name: Chemical, NOS
(Methyl Sulfone)
Hazard Class: Not hazardous by DOT Regulations in 49CFR
UN/NA Number: Not available
Reportable Quantity: N/A
DOT Placards: None
DOT Labels: None
Quantity limitations: None
15. REGULATORY INFORMATION
This document has been prepared in accordance with the MSDS requirements of the OSHA Hazard
Communication Standard 29 CFR 1910.1200.
Occupational Safety and Health Administration 鈥淥SHA鈥? hazardous chemical(s): Dimethyl
sulfone
IARC - International Agency for Research on Cancer Carcinogenicity Classification
(components present at 0.1% or more): Not Listed
ACGIH - American Conference of Governmental Industrial Hygienists: Not Listed
NTP - National Toxicology Program: Not Listed
Reporting requirements of Section 313 or Title III of the superfund Amendments and
Reauthorization Act (SARA) of 1986 and 40 CFR Part 372: None
TSCA - US Toxic Substances Control Act: This product is listed on the TSCA inventory.
EC Classification and User Label Information (Council Directive 67/548/EEC):
Hazard Symbols and Risk Phrases: None
16. OTHER INFORMATION
CAUTION:
FOR MANUFACTURING, PROCESSING OR REPACKAGING BY TRAINED PERSONNEL
MSDS Issue Date: August 20, 2004 Compiled by: John Ferguson
Supersedes MSDS Dated: September 12, 2001
The information contained herein is furnished without warranty of any kind. Users should consider these data only as a
supplement to other information gathered by them and must make independent determinations of suitability and
completeness of information from all sources to assure proper use and disposal of this material and the safety and health of
employees and customers and the protection of the environment. To the best of our knowledge the facts given are correct.
However the information is given without warranty as to its accuracy. It is the responsibility of the user to comply with all
applicable federal, state and local laws and regulations.
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