**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
|----------------|--------------------------------------|----------|-----------|
| 7446-11-9 |Sulfur trioxide | 99 | 231-197-3 |
|----------------|--------------------------------------|----------|-----------|
+----------------+--------------------------------------+----------+-----------+
Text for R-phrases: see Section 16
Hazard Symbols: C
Risk Phrases: 14 26 34
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Reacts violently with water. Very toxic by inhalation. Causes
burns.Hygroscopic (absorbs moisture from the air).
Potential Health Effects
Eye:
Causes eye burns.
Skin:
Causes skin burns.
Ingestion:
Causes gastrointestinal tract burns.
Inhalation:
May be fatal if inhaled. Causes chemical burns to the respiratory
tract.
Chronic:
Workers chronically exposed to sulfuric acid mists may show various
lesions of the skin, tracheobronchitis, stomatitis, conjunctivitis,
or gastritis. Occupational exposure to strong inorganic acid mists
containing sulfuric acid is carcinogenic to humans.
**** SECTION 4 - FIRST AID MEASURES ****
Eyes:
In case of contact, immediately flush eyes with plenty of water for
at least 15 minutes. Get medical aid immediately.
Skin:
In case of contact, immediately flush skin with plenty of water for
at least 15 minutes while removing contaminated clothing and shoes.
Get medical aid immediately. Wash clothing before reuse.
Ingestion:
If swallowed, do NOT induce vomiting. Get medical aid immediately.
If victim is fully conscious, give a cupful of water. Never give
anything by mouth to an unconscious person.
Inhalation:
POISON material. If inhaled, get medical aid immediately. Remove
victim to fresh air. If not breathing, give artificial respiration.
If breathing is difficult, give oxygen.
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. Reacts with most metals in the presence of
moisture, liberating extremely flammable hydrogen gas. Reacts with
steam to form corrosive, toxic fumes of sulfuric acid. Approach fire
from upwind to avoid hazardous vapors and toxic decomposition
products. Strong dehydrating agent, which may cause ignition of
finely divided materials on contact. Oxides of sulfur may be
produced in fire. SO3 chars many organic substances due to its
avidity for water. On contact with wood shavings, the heat produced
by dehydration is sufficient to cause fire.
Extinguishing Media:
Do NOT use water directly on fire. Use carbon dioxide or dry
chemical. Do NOT get water inside containers.
**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****
General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Avoid runoff into storm sewers and ditches which lead to waterways.
Clean up spills immediately, observing precautions in the Protective
Equipment section. Absorb spill using an absorbent, non-combustible
material such as earth, sand, or vermiculite. Do not use combustible
materials such as sawdust. Provide ventilation. Do not get water
inside containers. Evacuate unnecessary personnel. Approach spill
from upwind.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Do not get in eyes, on skin, or on clothing. Keep
container tightly closed. Do not allow contact with water. Discard
contaminated shoes. Do not breathe vapor. Store absolutely dry. Do
not use with metal spatula or other metal items. Use only with
adequate ventilation or respiratory protection.
Storage:
Keep from freezing. Keep container closed when not in use. Store in
a cool, dry, well-ventilated area away from incompatible substances.
Store at around 20C. Store in a suitable container in a dry area
above the substance's freezing point. Do NOT freeze.
**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****
Engineering Controls:
Use explosion-proof ventilation equipment. Facilities storing or
utilizing this material should be equipped with an eyewash facility
and a safety shower. Use adequate ventilation to keep airborne
concentrations low. Use a corrosion-resistant ventilation system.
Exposure Limits
CAS# 7446-11-9:
Germany: 0.5 mg/m3 TWA (inhalable fraction, battery manufacture,
metal working in a close
Russia: 1 mg/m3 TWA
CAS# 7664-93-9:
United States OSHA: 1 mg/m3 TWA
Belgium - TWA: 1 mg/m3 VLE
Belgium - STEL: 3 mg/m3 VLE
France - VME: 1 mg/m3 VME
France - VLE: 3 mg/m3 VLE
Germany: 0.5 mg/m3 TWA (inhalable fraction, battery manufacture,
metal working in a close
Japan: 1 mg/m3 Ceiling
Malaysia: 1 mg/m3 TWA
Netherlands: 1 mg/m3 MAC
Russia: 1 mg/m3 TWA
Spain: 1 mg/m3 VLA-ED
Spain: 3 mg/m3 VLA-EC
Personal Protective Equipment
Eyes:
Wear chemical splash goggles and face shield.
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: Liquid
Color: clear, colorless to pale yellow
Odor: None reported.
pH: Not available.
Vapor Pressure: 433 mm Hg @ 25 deg C
Viscosity: 1.59 cP 30 deg C
Boiling Point: 44.8 deg C @ 760 mm Hg
Freezing/Melting Point: 16.8 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: reacts violently with water
Specific Gravity/Density: 1.9224 g/cm3
Molecular Formula: O3S
Molecular Weight: 80.06
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Sulfuric acid reacts vigorously, violently or explosively with many
organic and inorganic chemicals and with water. Moisture sensitive.
Readily hydrolyzed by moisture. Decomposes in the presence of water
or acids to form sulfuric acid.
Conditions to Avoid:
Excess heat, exposure to moist air or water, freezing temperatures,
confined spaces.
Incompatibilities with Other Materials:
Water, metals, bases, organic materials.
Hazardous Decomposition Products:
Oxides of sulfur.
Hazardous Polymerization: May occur.
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 7446-11-9: WT4830000
CAS# 7664-93-9: WS5600000
LD50/LC50:
Not available.
CAS# 7664-93-9: Draize test, rabbit, eye: 250 ug Severe; Inhalation,
mouse: LC50 = 320 mg/m3/2H; Inhalation, mouse: LC50 = 320 mg/m3;
Inhalation, rat: LC50 = 510 mg/m3/2H; Inhalation, rat: LC50 = 510
mg/m3; Oral, rat: LD50 = 2140 mg/kg.
Carcinogenicity:
Sulfur trioxide -
Not listed by ACGIH, IARC, or NTP.
Sulfuric acid -
ACGIH: A2 - Suspected Human Carcinogen (contained in strong inorg
California: carcinogen, initial date 3/14/03 (listed as Strong inorgan
NTP: Known carcinogen (listed as Strong inorganic acid mists co
IARC: Group 1 carcinogen
Other:
See actual entry in RTECS for complete information.
**** SECTION 12 - ECOLOGICAL INFORMATION ****
**** SECTION 13 - DISPOSAL CONSIDERATIONS ****
Dispose of in a manner consistent with federal, state, and local regulations.
**** SECTION 14 - TRANSPORT INFORMATION ****
IATA
Shipping Name: SULPHUR TRIOXIDE, INHIBITED
Hazard Class: 8, 6.1
UN Number: 1829
Packing Group: I
IMO
Shipping Name: SULPHUR TRIOXIDE, INHIBITED
Hazard Class: 8
UN Number: 1829
Packing Group: I
RID/ADR
Shipping Name: SULPHUR TRIOXIDE, INHIBITED
Hazard Class: 8
UN Number: 1829
Packing group: I
USA RQ: CAS# 7664-93-9: 1000 lb final RQ; 454 kg final RQ
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: C
Risk Phrases:
R 14 Reacts violently with water.
R 26 Very toxic by inhalation.
R 34 Causes burns.
Safety Phrases:
S 8 Keep container dry.
S 25 Avoid contact with eyes.
S 36/37/39 Wear suitable protective clothing, gloves
and eye/face protection.
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# 7446-11-9: 2
CAS# 7664-93-9: 2
Canada
CAS# 7446-11-9 is listed on Canada's DSL List.
CAS# 7664-93-9 is listed on Canada's DSL List.
CAS# 7446-11-9 is listed on Canada's Ingredient Disclosure List.
CAS# 7664-93-9 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 7446-11-9 is listed on the TSCA inventory.
CAS# 7664-93-9 is listed on the TSCA inventory.
**** SECTION 16 - ADDITIONAL INFORMATION ****
Text for R-phrases from Section 2
R 35 Causes severe burns.
MSDS Creation Date: 11/23/1998 Revision #3 Date: 3/04/2004
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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| 111-66-0 |
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| 111-16-0 |
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| 626-36-8 |
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| 108-50-9 |
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| 96-45-7 |
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| 64-65-3 |
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| 53475-15-3 |
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| 2916-76-9 |
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| 83-34-1 |
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| 546-68-9 |
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| 36436-65-4 |
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| 592-88-1 |
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| 520-26-3 |
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| 17902-23-7 |
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| 7440-65-5 |
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