DOW CORNING CORPORATION
Material Safety Data Sheet
Page: 1 of 7
Version: 1.5
Revision Date: 2008/02/04
DOW CORNING(R) HIGH VACUUM GREASE
1. IDENTIFICATION OF THE SUBSTANCE AND OF THE COMPANY
MSDS No.: 01018817
SUPPLIER: Prepared by Product Safety: (800) 248-2481
Dow Corning Canada Inc. NEWALTA: (800) 567-7455
15-6400 Millcreek Drive, Suite 416 Revision Date: 2008/02/04
Mississauga, ON, Canada L5N 3E7
MANUFACTURER: 24 Hour Emergency Telephone: (989) 496-5900
Dow Corning Corporation
South Saginaw Road
Midland, Michigan 48686
WHMIS CLASSIFICATION: Class D, Division 2, Subdivision A.
Material Usage: Lubricant
2. HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Generic Description: Silicone compound
Physical Form: Grease
Colour: Translucent white
Odour: None
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POTENTIAL HEALTH EFFECTS
Acute Effects
Eye: Direct contact may cause temporary redness and discomfort.
Skin: No significant irritation expected from a single short-term exposure.
Inhalation: No significant effects expected from a single short-term exposure.
Oral: Low ingestion hazard in normal use.
Prolonged/Repeated Exposure Effects
Skin: No known applicable information.
Inhalation: No known applicable information.
DOW CORNING CORPORATION
Material Safety Data Sheet
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Version: 1.5
Revision Date: 2008/02/04
DOW CORNING(R) HIGH VACUUM GREASE
Oral: No known applicable information.
Signs and Symptoms of Overexposure
No known applicable information.
Medical Conditions Aggravated by Exposure
No known applicable information.
The above listed potential effects of overexposure are based on actual data, results of studies performed upon similar compositions,
component data and/or expert review of the product. Please refer to Section 11 for the detailed toxicology information.
3. COMPOSITION/INFORMATION ON INGREDIENTS
CAS Number Wt % Component Name
7631-86-9 7.0 - 13.0 Silica, amorphous
556-67-2 0.1 - 1.0 Octamethylcyclotetrasiloxane
The ingredients listed above are controlled products as defined in CPR, am. SOR/88-555.
4. FIRST AID MEASURES
Eye: Immediately flush with water.
Skin: No first aid should be needed.
Inhalation: No first aid should be needed.
Oral: No first aid should be needed.
Notes to Physician: Treat symptomatically.
5. FIRE FIGHTING MEASURES
Flash Point: 212 掳F / 100 掳C (Closed Cup)
Autoignition Temperature: Not available.
Flammability Limits in Air: Not available.
Extinguishing Media: On large fires use dry chemical, foam or water spray. On small fires use carbon dioxide
(CO2), dry chemical or water spray. Water can be used to cool fire exposed containers.
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Material Safety Data Sheet
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Version: 1.5
Revision Date: 2008/02/04
DOW CORNING(R) HIGH VACUUM GREASE
Fire Fighting Measures: Self-contained breathing apparatus and protective clothing should be worn in fighting large
fires involving chemicals. Determine the need to evacuate or isolate the area according to
your local emergency plan. Use water spray to keep fire exposed containers cool.
Unusual Fire Hazards: None.
6. ACCIDENTAL RELEASE MEASURES
Containment/Clean up: Determine whether to evacuate or isolate the area according to your local emergency plan.
Observe all personal protection equipment recommendations described in Sections 5 and 8.
For large spills, provide diking or other appropriate containment to keep material from
spreading. If diked material can be pumped, store recovered material in appropriate
container. Clean up remaining materials from spill with suitable absorbant. Clean area as
appropriate since spilled materials, even in small quantities, may present a slip hazard. Final
cleaning may require use of steam, solvents or detergents. Dispose of saturated absorbant or
cleaning materials appropriately, since spontaneous heating may occur. Local, provincial,
federal laws and regulations may apply to releases and disposal of this material, as well as
those materials and items employed in the cleanup of releases.
Note: See section 8 for Personal Protective Equipment for Spills. Call (989) 496-5900, if additional information is
required.
7. HANDLING AND STORAGE
Use with adequate ventilation. Avoid eye contact.
Use reasonable care and store away from oxidizing materials.
8. EXPOSURE CONTROLS / PERSONAL PROTECTION
Component Exposure Limits
Consult local authorities for acceptable provincial values.
CAS Number Component Name Exposure Limits
7631-86-9 Silica, amorphous OSHA PEL (final rule): TWA 80mg/m3/%SiO2. NIOSH
REL: TWA 6mg/m3.
LD50: > 5,110 mg/kg - Oral Rat
LD50: > 5,000 mg/kg - Dermal Rabbit
556-67-2 Octamethylcyclotetrasiloxane Dow Corning guide: TWA 10 ppm.
LC50: > 12.17 mg/L - Inhalation Rat ; 4hr vapor
LD50: > 5,000 mg/kg - Oral Rat
LD50: > 4,640 mg/kg - Dermal Rabbit
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Material Safety Data Sheet
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Engineering Controls
Local Ventilation: None should be needed.
General Ventilation: Recommended.
Personal Protective Equipment for Routine Handling
Eyes: Use proper protection - safety glasses as a minimum.
Skin: Washing at mealtime and end of shift is adequate.
Suitable Gloves: Handle in accordance with good industrial hygiene and safety practices.
Inhalation: No respiratory protection should be needed.
Suitable Respirator: None should be needed.
Personal Protective Equipment for Spills
Eyes: Use proper protection - safety glasses as a minimum.
Skin: Washing at mealtime and end of shift is adequate.
Inhalation/Suitable No respiratory protection should be needed.
Respirator:
Precautionary Measures: Avoid eye contact. Use reasonable care.
Note: These precautions are for room temperature handling. Use at elevated temperature or aerosol/spray applications may require
added precautions.
9. PHYSICAL AND CHEMICAL PROPERTIES
Physical Form: Grease
Color: Translucent white
Odor: None
Odor Threshold: Not available.
Specific Gravity @ 25掳C: 1.1
Viscosity: 2000000 cSt
Freezing/Melting Point: Not available.
Boiling Point: Not available.
Vapor Pressure @ 25掳C: Not available.
Vapor Density: Not available.
Evaporation Rate: Not available.
Solubility in Water: Not available.
Coefficient of Water/Oil Not available.
Distribution:
pH: Not available.
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Material Safety Data Sheet
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Volatile Content: Not available.
Flash Point: 212 掳F / 100 掳C (Closed Cup)
Autoignition Temperature: Not available.
Flammability Limits in Air: Not available.
Note: The above information is not intended for use in preparing product specifications. Contact Dow Corning before writing
specifications.
10. STABILITY AND REACTIVITY
Chemical Stability: Stable.
Hazardous Hazardous polymerization will not occur.
Polymerization:
Conditions to Avoid: None.
Materials to Avoid: Oxidizing material can cause a reaction.
Hazardous Decomposition Products
Thermal breakdown of this product during fire or very high heat conditions may evolve the following decomposition
products: Carbon oxides and traces of incompletely burned carbon compounds. Silicon dioxide. Formaldehyde.
11. TOXICOLOGICAL INFORMATION
Component Toxicology Information
Recent results from a 2 year repeated vapour inhalation exposure study to rats of octamethylcyclotetrasiloxane (D4)
indicate effects (benign uterine adenomas) in the uterus of female animals. These effects, which have been shown to be
rat-specific, occur at the highest exposure dose (700 ppm) only, a level that greatly exceeds typical workplace or
consumer exposures. Industrial, commercial, or consumer uses of products containing D4 do not represent a risk to
humans.
Octamethylcyclotetrasiloxane administered to rats by inhalation at concentrations of 500 and 700 ppm resulted in
statistically significant decreases in the number of pups born and the live litter size in both the first and second
generations. Prolonged estrous cycles, and decreased mating and fertility indices were observed following 700 ppm
exposure in the second generation only. There were also increases in the incidence of deliveries of offspring extending
over an unusually long time period (dystocia). Subsequent mode of action work demonstrated the effect on reproduction
in female rats is due to delayed ovulation caused by a treatment-related delay in or blockage of the luteinizing hormone
(LH) surge on the day of proestrus. This mode of action is not considered relevant to humans.
Special Hazard Information on Components
Reproductive Effects
CAS Number Wt % Component Name
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Material Safety Data Sheet
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DOW CORNING(R) HIGH VACUUM GREASE
556-67-2 0.1 - 1.0 Octamethylcyclotetrasiloxane Evidence of reproductive effects in
laboratory animals.
12. ECOLOGICAL INFORMATION
Environmental Fate and Distribution
Complete information is not yet available.
Environmental Effects
Complete information is not yet available.
Fate and Effects in Waste Water Treatment Plants
Complete information is not yet available.
Ecotoxicity Classification Criteria
Hazard Parameters (LC50 or EC50) High Medium Low
Acute Aquatic Toxicity (mg/L) <=1 >1 and <=100 >100
Acute Terrestrial Toxicity <=100 >100 and <= 2000 >2000
This table is adapted from "Environmental Toxicology and Risk Assessment", ASTM STP 1179, p.34, 1993.
This table can be used to classify the ecotoxicity of this product when ecotoxicity data is listed above. Please read the other information presented in the
section concerning the overall ecological safety of this material.
13. DISPOSAL CONSIDERATIONS
Can be incinerated in accordance with local regulations.
Call local hazardous waste disposal company or provincial waste authorities for more information.
14. TRANSPORT INFORMATION
Canada Road (Based on IMDG Regulations)
Not subject to local road regulations.
Ocean Shipment (IMDG)
Not subject to IMDG code.
Air Shipment (IATA)
Not subject to IATA regulations.
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Material Safety Data Sheet
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Version: 1.5
Revision Date: 2008/02/04
DOW CORNING(R) HIGH VACUUM GREASE
Call Dow Corning Transportation, (989) 496-8577, if additional information is required.
15. REGULATORY INFORMATION
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.
WHMIS Class D, Division 2, Subdivision A.
CLASSIFICATION:
DSL STATUS: All chemical substances in this material are included on or exempted from the DSL.
16. OTHER INFORMATION
Prepared by: Dow Corning Corporation
These data are offered in good faith as typical values and not as product specifications. No warranty, either expressed or
implied, is hereby made. The recommended industrial hygiene and safe handling procedures are believed to be generally
applicable. However, each user should review these recommendations in the specific context of the intended use and
determine whether they are appropriate.
(R) indicates Registered Trademark
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