**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 78-10-4 |Tetraethyl orthosilicate | 95% | 201-083-8 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: XN
Risk Phrases: 10 36/37 20
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Flammable. Irritating to eyes and respiratory system. Harmful by
inhalation.Moisture sensitive.
Potential Health Effects
Eye:
Causes severe eye irritation. Causes redness and pain.
Skin:
Causes moderate skin irritation. Causes redness and pain. May cause
contact dermatitis. Contact with the skin defats the skin.
Ingestion:
May cause irritation of the digestive tract. Ingestion may cause
headache, nausea, and vomiting.
Inhalation:
Harmful if inhaled. Causes respiratory tract irritation. May cause
irritation of the respiratory tract with burning pain in the nose and
throat, coughing, wheezing, shortness of breath and pulmonary edema.
May cause narcotic effects in high concentration. May cause lung
damage.
Chronic:
Prolonged or repeated skin contact may cause defatting and
dermatitis. May cause liver and kidney damage. Prolonged or repeated
exposure may cause lung irritation, chest pain, and pulmonary edema.
**** SECTION 4 - FIRST AID MEASURES ****
Eyes:
Flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Flush skin with plenty of soap and water for at
least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Get medical aid. Wash mouth out with water.
Inhalation:
Remove from exposure to fresh air immediately. If not breathing,
give artificial respiration. If breathing is difficult, give oxygen.
Get medical aid.
Notes to Physician:
Treat symptomatically and supportively.
**** SECTION 5 - FIRE FIGHTING MEASURES ****
General Information:
As in any fire, wear a self-contained breathing apparatus in
pressure-demand, MSHA/NIOSH (approved or equivalent), and full
protective gear. Vapors may form an explosive mixture with air.
Vapors can travel to a source of ignition and flash back. Will burn
if involved in a fire. Flammable liquid and vapor. Closed containers
may rupture violently when heated.
Extinguishing Media:
Use water spray to cool fire-exposed containers. Use foam, dry
chemical, or carbon dioxide.
**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****
General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth),
then place in suitable container. Remove all sources of ignition.
Use a spark-proof tool.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Use spark-proof tools and explosion proof equipment. Avoid breathing
dust, vapor, mist, or gas. Avoid contact with skin and eyes. Take
precautionary measures against static discharges.
Storage:
Keep away from sources of ignition. Store in a cool, dry place.
Store in a tightly closed container. Flammables-area.
**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****
Engineering Controls:
Facilities storing or utilizing this material should be equipped
with an eyewash facility and a safety shower. Use adequate general or
local explosion-proof ventilation to keep airborne levels to
acceptable levels.
Personal Protective Equipment
Eyes:
Not available.
Skin:
Wear appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear appropriate protective clothing to prevent skin
exposure.
Respirators:
Follow the OSHA respirator regulations found in 29CFR
1910.134 or European Standard EN 149. Always use a
NIOSH or European Standard EN 149 approved respirator
when necessary.
**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****
Physical State: Clear liquid
Appearance: Not available.
Odor: ester-like - slight characteristic odor
pH: Not available.
Vapor Pressure: 1.7 mbar @ 20 deg C
Viscosity: 0.75 mPa.s@20 deg C
Boiling Point: 166 - 169 deg C @ 7
Freezing/Melting Point: -85 deg C
Autoignition Temperature: 225 deg C ( 437.00 deg F)
Flash Point: 45 deg C ( 113.00 deg F)
Explosion Limits, lower: 1.30 Vol%
Explosion Limits, upper: 23 Vol%
Decomposition Temperature:
Solubility in water: Hydrolysis.
Specific Gravity/Density: .9340g/cm3
Molecular Formula: C8H20O4Si
Molecular Weight: 208.33
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Stable.
Conditions to Avoid:
Incompatible materials, ignition sources, excess heat, exposure to
moist air or water.
Incompatibilities with Other Materials:
Strong acids, strong oxidizing agents, caustic alkalis, alkali
metals, alkaline earth metals.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide, ethyl alcohol, silicon oxide, acrid
smoke and fumes, organic acids.
Hazardous Polymerization: Will not occur.
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 78-10-4: VV9450000
LD50/LC50:
CAS# 78-10-4: Draize test, rabbit, eye: 100 mg Mild; Draize test,
rabbit, eye: 500 mg/24H Mild; Draize test, rabbit, skin: 500 mg/24H
Moderate; Oral, rat: LD50 = 6270 mg/kg; Skin, rabbit: LD50 = 6300
uL/kg.
Carcinogenicity:
Tetraethyl orthosilicate -
Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
See actual entry in RTECS for complete information.
**** SECTION 12 - ECOLOGICAL INFORMATION ****
Other
No information available.
**** SECTION 13 - DISPOSAL CONSIDERATIONS ****
Dispose of in a manner consistent with federal, state, and local regulations.
**** SECTION 14 - TRANSPORT INFORMATION ****
IATA
No information available.
IMO
No information available.
RID/ADR
No information available.
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XN
Risk Phrases:
R 10 Flammable.
R 36/37 Irritating to eyes and respiratory system.
R 20 Harmful by inhalation.
Safety Phrases:
WGK (Water Danger/Protection)
CAS# 78-10-4: 1
United Kingdom Occupational Exposure Limits
CAS# 78-10-4: OES-United Kingdom, TWA 10 ppm TWA; 87 mg/m3 TWA
CAS# 78-10-4: OES-United Kingdom, STEL 30 ppm STEL; 260 mg/m3 STEL
Canada
CAS# 78-10-4 is listed on Canada's DSL List.
CAS# 78-10-4 is listed on Canada's Ingredient Disclosure List.
Exposure Limits
CAS# 78-10-4: OEL-AUSTRALIA:TWA 10 ppm (85 mg/m3)
OEL-BELGIUM:TWA 10 ppm (85 mg/m3)
OEL-DENMARK:TWA 10 ppm (85 mg/m3)
OEL-FINLAND:TWA 10 ppm (85 mg/m3);STEL 20 ppm (17 mg/m3)
OEL-FRANCE:TWA 10 ppm (85 mg/m3)
OEL-GERMANY:TWA 100 ppm (850 mg/m3)
OEL-THE NETHERLANDS:TWA 10 ppm (85 mg/m3)
OEL-THE PHILIPPINES:TWA 100 ppm (850 mg/m3)
OEL-POLAND:TWA 80 mg/m3
OEL-RUSSIA:STEL 20 mg/m3
OEL-SWITZERLAND:TWA 10 ppm (85 mg/m3)
OEL-TURKEY:TWA 100 ppm (850 mg/m3)
OEL-UNITED KINGDOM:TWA 10 ppm (85 mg/m3);STEL 30 ppm (255 mg/m3)
OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV
OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGI TLV
US FEDERAL
TSCA
CAS# 78-10-4 is listed on the TSCA inventory.
**** SECTION 16 - ADDITIONAL INFORMATION ****
MSDS Creation Date: 8/16/2000 Revision #0 Date: Original.
The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users
should make their own investigations to determine the suitability of the
information for their particular purposes. In no way shall the company be
liable for any claims, losses, or damages of any third party or for lost
profits or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if the company has been advised of
the possibility of such damages.
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