**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 20816-12-0 |OSMIUM TETROXIDE | 100 | 244-058-7 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: T+
Risk Phrases: 26/27/28 34
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Very toxic by inhalation, in contact with skin and if swallowed.
Causes burns.Corrosive.Stench.
Potential Health Effects
Eye:
Causes severe eye irritation. Causes eye burns. May cause
blindness. May cause lacrimation (tearing), blurred vision, and
photophobia. May cause chemical conjunctivitis and corneal damage.
Skin:
May cause skin irritation and possible burns. Causes skin irritation
and possible burns.
Ingestion:
May be fatal if swallowed. Aspiration hazard. Causes cough, sore
throat, chest pain, and lightheadedness. May cause nausea, vomiting,
abdominal pain, and increased salivation.
Inhalation:
May cause severe irritation of the respiratory tract with sore
throat, coughing, shortness of breath and delayed lung edema. May
cause bronchopneumonia and possible death. Olfactory fatigue may
occur. Can produce delayed pulmonary edema.
Chronic:
Prolonged or repeated skin contact may cause dermatitis. Prolonged
or repeated exposure may cause adverse reproductive effects.
**** SECTION 4 - FIRST AID MEASURES ****
Eyes:
Immediately flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. Get medical aid
immediately.
Skin:
Get medical aid immediately. Immediately flush skin with plenty of
water for at least 15 minutes while removing contaminated clothing
and shoes.
Ingestion:
Do not induce vomiting. If victim is conscious and alert, give 2-4
cupfuls of milk or water. Get medical aid immediately.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh
air immediately. If not breathing, give artificial respiration. If
breathing is difficult, give oxygen.
Notes to Physician:
**** SECTION 5 - FIRE FIGHTING MEASURES ****
General Information:
Evacuate area and fight fire from a safe distance. As in any fire,
wear a self-contained breathing apparatus in pressure-demand,
MSHA/NIOSH (approved or equivalent), and full protective gear.
Oxidizer. Greatly increases the burning rate of combustible
materials. Dust can be an explosion hazard when exposed to heat or
flame. Flammable solid. May burn rapidly with flare burning effect.
May re-ignite after fire is extinguished.
Extinguishing Media:
For large fires, use water spray, fog or regular foam. Contact
professional fire-fighters immediately. For small fires, use dry
chemical, carbon dioxide, sand, earth, water spray or regular foam.
Cool containers with flooding quantities of water until well after
fire is out.
**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****
General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Reduce airborne dust and prevent scattering by moistening with
water. Wear a self contained breathing apparatus and appropriate
personal protection. (See Exposure Controls, Personal Protection
section). Sweep up, then place into a suitable container for
disposal. Avoid generating dusty conditions. Remove all sources of
ignition.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Use with adequate ventilation. Minimize dust
generation and accumulation. Empty containers retain product residue,
(liquid and/or vapor), and can be dangerous. Keep container tightly
closed. Keep away from heat, sparks and flame. Do not get on skin or
in eyes. Do not ingest or inhale. Do not pressurize, cut, weld,
braze, solder, drill, grind, or expose empty containers to heat,
sparks or open flames.
Storage:
Keep away from heat, sparks, and flame. Keep away from sources of
ignition. Do not store near combustible materials. Store in a
tightly closed container. Store in a cool, dry, well-ventilated area
away from incompatible substances. Poison room locked.
**** 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.
Exposure Limits
CAS# 20816-12-0:
United Kingdom, WEL - TWA: 0.0002 ppm TWA (as Os); 0.002 mg/m3 TW
(as Os)
United Kingdom, WEL - STEL: 0.0006 ppm STEL (as Os); 0.006 mg/m3
(as Os)
United States OSHA: 0.002 mg/m3 TWA (As Os)
Belgium - TWA: 0.0002 ppm VLE (as Os); 0.0016 mg/m3 VLE (as Os)
Belgium - STEL: 0.0006 ppm VLE (as Os); 0.0048 mg/m3 VLE (as Os)
France - VME: 0.0002 ppm VME (as Os); 0.002 mg/m3 VME (as Os)
Germany: 0.0002 ppm TWA; 0.0021 mg/m3 TWA
Germany: Skin absorber
Malaysia: 0.0002 ppm TWA (as Os); 0.0016 mg/m3 TWA (as Os)
Netherlands: 0.0002 ppm MAC; 0.002 mg/m3 MAC (as Os)
Spain: 0.0002 ppm VLA-ED (as Os); 0.002 mg/m3 VLA-ED (as Os)
Spain: 0.0006 ppm VLA-EC (as Os); 0.006 mg/m3 VLA-EC (as Os)
Personal Protective Equipment
Eyes:
Wear appropriate protective eyeglasses or chemical
safety goggles as described by OSHA's eye and face
protection regulations in 29 CFR 1910.133 or European
Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear appropriate protective clothing to prevent skin
exposure.
Respirators:
A respiratory protection program that meets OSHA's 29
CFR 1910.134 and ANSI Z88.2 requirements or European
Standard EN 149 must be followed whenever workplace
conditions warrant respirator use.
**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****
Physical State: Solid
Color: almost white
Odor: chlorine-like
pH: Not available.
Vapor Pressure: 7 mm Hg @ 20C
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: Not available.
Autoignition Temperature: Not applicable.
Flash Point: 4 deg C ( 39.20 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density:
Molecular Formula: O4Os
Molecular Weight: 254.20
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, ignition sources, dust generation, excess
heat.
Incompatibilities with Other Materials:
Strong oxidizing agents, hydrochloric acid, bases, finely powdered
metals, organic materials, strong reducing agents.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon
dioxide.
Hazardous Polymerization: Has not been reported.
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 20816-12-0: RN1140000
LD50/LC50:
CAS# 20816-12-0: Oral, mouse: LD50 = 162 mg/kg.
Carcinogenicity:
OSMIUM TETROXIDE -
Not listed by ACGIH, IARC, or NTP.
Other:
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
Shipping Name: FLAMMABLE LIQUID, TOXIC, N.O.S.*
Hazard Class: 3 (6.1)
UN Number: 1992
Packing Group: II
IMO
Shipping Name: FLAMMABLE LIQUID, TOXIC, N.O.S.
Hazard Class: 3.2 (6.1)
UN Number: 1992
Packing Group: II
RID/ADR
Shipping Name: FLAMMABLE LIQUID, TOXIC, N.O.S.
Hazard Class: 3
UN Number: 1992
Packing group: II
USA RQ: CAS# 20816-12-0: 1000 lb final RQ; 454 kg final RQ
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T+
Risk Phrases:
R 26/27/28 Very toxic by inhalation, in contact with
skin and if swallowed.
R 34 Causes burns.
Safety Phrases:
S 7/9 Keep container tightly closed and in a
well-ventilated place.
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 20816-12-0: 2
Canada
CAS# 20816-12-0 is listed on Canada's DSL List.
CAS# 20816-12-0 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 20816-12-0 is listed on the TSCA inventory.
**** SECTION 16 - ADDITIONAL INFORMATION ****
MSDS Creation Date: 9/02/1997 Revision #5 Date: 3/18/2003
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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