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M A T E R I A L   S A F E T Y   D A T A   S H E E T

SECTION 1. Product and Company Identification
Pure MSM

Product Code: HH-PURE MSM
Product Name: Pure MSM
Manufacturer Name and Address:Telephone Numbers:Dates:
Distributed by:CHEMTREC(800)424-9300Date Created: 07/17/2000
Farnam Companies, Inc.District of Columbia(202)483-0414Revision: 07/23/2007
301 West Osborn RoadFarnam Companies, In(800)234-2269Printed: 07/26/2007
Phoenix, AZ.
Additional Identity Information
3001032 1-lb, 3001033 2-lb, 3001035 4-lb

SECTION 2. Composition/Information on Ingredients
Pure MSM

  Hazardous Components (Chemical Name)  CAS #   Concentration
1. Methyl sulfone {Dimethyl sulfone} 67-71-0 90.0 -99.9 %
   OSHA PEL ACGIH TLV Other Limits
1.   No data.   No data.   TWA- 10  

SECTION 3. Hazards Identification
Pure MSM

Emergency Overview
No data available.
Route(s) of Entry: Inhalation? Yes , Skin? Yes , Eyes? Yes , Ingestion? Yes
Potential Health Effects (Acute and Chronic)
No data available.
Carcinogenicity: NTP? No , IARC Monographs? No , OSHA Regulated? No
Carcinogenicity/Other Information
No data available.
Recommended Exposure Limits
TWA: 10 (Dust)

LD 50 / LC 50
oral rat LD 50:17,000 mg/kg

Signs and Symptoms Of Exposure
No data available.
Medical Conditions Generally Aggravated By Exposure
No data available.

SECTION 4. First Aid Measures
Pure MSM

Emergency and First Aid Procedures
Inhalation: Remove to fresh air. If breathing is difficult, give oxygen. Get immediate medical attention.
In Eyes: Flush the contaminated eyes with a gentle stream of water or saline until no evidence of the chemical remains. Get medical attention immediately.
On Skin: Wash with soap and water.
Ingestion: If vomiting occurs, keep head lower than hips to prevent aspiration. Get medical attention, as needed.
Note to Physician
No data available.

SECTION 5. Fire Fighting Measures
Pure MSM

Flash Pt: 135.00 C Method Used: TCC
Explosive Limits: LEL: No data. UEL: No data.
Autoignition Pt: N.A. Extinguishing Media
Carbon dioxide, dry chemical, foam, or water
Fire Fighting Instructions
Avoid dispersion of dust in air to reduce potential explosion hazard.
Flammable Properties and Hazards
No data available.
Hazardous Combustion Products
No data available.

SECTION 6. Accidental Release Measures
Pure MSM

Steps To Be Taken In Case Material Is Released Or Spilled
Vacuum or sweep up material and place in disposal container.

SECTION 7. Handling and Storage
Pure MSM

Hazard Label Information:
  Cancer hazard.
Use with adequate ventilation.  
Precautions To Be Taken in Handling
No data available.
Precautions To Be Taken in Storing
No data available.
Other Precautions
No data available.

SECTION 8. Exposure Controls/Personal Protection
Pure MSM

Protective Equipment Summary - Hazard Label Information:
  Neoprene gloves  
ANSI approved respirator  
Respiratory Equipment (Specify Type)
None needed under conditions of normal use. In manufacturing situations, use of a NIOSH/MSHA organic vapor respiratory may be needed.
Eye Protection
Goggles to prevent mechanical injury in manufacturing situations.
Protective Gloves
Rubber or plastic gloves
Other Protective Clothing
Sufficient to prevent over-exposure.
Engineering Controls (Ventilation etc.)
Local is sufficient.
Work/Hygienic/Maintenance Practices
Wash thoroughly after use and before eating, smoking, or using restroom.

SECTION 9. Physical and Chemical Properties
Pure MSM

Solubility Notes
Hygroscopic
Physical States:  [ ] Gas , [ ] Liquid , [ X ] Solid
Boiling Point: 238.00 C
Melting Point:  109.00 C
Specific Gravity (Water = 1): 1.170700 at 110.0 C
Density: No data.
Vapor Pressure (vs. Air or mm Hg): N.A.
Vapor Density (vs. Air = 1): N.A.
Evaporation Rate (vs Butyl Acetate=1):  N.A.
Solubility in Water: Soluble
Percent Volatile: N.A.
Saturated Vapor Concentration: No data.
Viscosity: No data.
pH: No data.
Appearance and Odor
White odorless crystals.

SECTION 10. Stability and Reactivity
Pure MSM

Stability: Unstable [ ] Stable [ X ]
Conditions To Avoid - Instability
Stable at normal temperatures and pressures
Incompatibility - Materials To Avoid
Oxidizing materials
Hazardous Decomposition Or Byproducts
Thermal decomposition products: Oxides of sulfur, carbon
Hazardous Polymerization: Will occur [ ] Will not occur [ X ]
Conditions To Avoid - Hazardous Polymerization
Product will not undergo polymerization.

SECTION 11. Toxicological Information
Pure MSM

No data available.

SECTION 12. Ecological Information
Pure MSM

No data available.

SECTION 13. Disposal Considerations
Pure MSM

Waste Disposal Method
Place in closed containers. dispose of product in accordance with local, state and federal regulations. Keep out of water supplies and sewers.

SECTION 14. Transport Information
Pure MSM

DOT Proper Shipping Name
No data available.

Additional Transport Information
No data available.

SECTION 15. Regulatory Information
Pure MSM

No data available.

SECTION 16. Other Information
Pure MSM

Supercedes Revision 04/26/2001

The information and data herein are believed to be accurate and have been compiled from sources believed to be reliable. It is offered for your consideration, investigation and verification.