Name:
Sulfur dioxide gas in lecture bottles
Synonym:
Sulfurous oxide
CAS:
7446-09-5
Section 1 - Chemical Product
MSDS Name:Sulfur dioxide gas in lecture bottles
Synonym:Sulfurous oxide
Synonym:Sulfurous oxide
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 7446-09-5 | Sulfur dioxide | 100 | 231-195-2 |
| Hazard Symbols: T Risk Phrases: 23 34 |
Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Toxic by inhalation. Causes burns.
Potential Health Effects
Eye:
Causes eye burns.
Skin:
Contact with skin causes irritation and possible burns, especially if the skin is wet or moist.
Ingestion:
May cause severe irritation of the digestive tract.
Inhalation:
Harmful if inhaled. Irritation may lead to chemical pneumonitis and pulmonary edema. Causes chemical burns to the respiratory tract.
Chronic:
Prolonged or repeated skin contact may cause dermatitis. Repeated inhalation may cause chronic bronchitis. Repeated exposure may cause erosion of teeth. Chronic inhalation may cause pulmonary emphysema.
Toxic by inhalation. Causes burns.
Potential Health Effects
Eye:
Causes eye burns.
Skin:
Contact with skin causes irritation and possible burns, especially if the skin is wet or moist.
Ingestion:
May cause severe irritation of the digestive tract.
Inhalation:
Harmful if inhaled. Irritation may lead to chemical pneumonitis and pulmonary edema. Causes chemical burns to the respiratory tract.
Chronic:
Prolonged or repeated skin contact may cause dermatitis. Repeated inhalation may cause chronic bronchitis. Repeated exposure may cause erosion of teeth. Chronic inhalation may cause pulmonary emphysema.
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:
If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
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:
If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Section 5 - FIRE FIGHTING MEASURES
General Information:
Evacuate area and fight fire from a safe distance. Containers can build up pressure if exposed to heat and/or fire. As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Use water spray to keep fire-exposed containers cool. Approach fire from upwind to avoid hazardous vapors and toxic decomposition products.
Extinguishing Media:
Use extinguishing media most appropriate for the surrounding fire.
Evacuate area and fight fire from a safe distance. Containers can build up pressure if exposed to heat and/or fire. As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Use water spray to keep fire-exposed containers cool. Approach fire from upwind to avoid hazardous vapors and toxic decomposition products.
Extinguishing Media:
Use extinguishing media most appropriate for the surrounding fire.
Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Isolate area and deny entry. Evacuate unnecessary personnel.
Approach spill from upwind. Control runoff and isolate discharged material for proper disposal. Use water spray to cool and disperse vapors and protect personnel.
Spills/Leaks:
Isolate area and deny entry. Evacuate unnecessary personnel.
Approach spill from upwind. Control runoff and isolate discharged material for proper disposal. Use water spray to cool and disperse vapors and protect personnel.
Section 7 - HANDLING and STORAGE
Handling:
Do not get on skin or in eyes. Do not breathe vapor or mist. Use only with adequate ventilation or respiratory protection. Hastelloy, platinum or gold offer good resistance to corrosion when moisture is present. Most other metals are corroded by this product in the presence of moisture. Kel-F or teflon are the preferred gasket materials.
Storage:
Store in a cool, dry, well-ventilated area away from incompatible substances. Outside or detached storage is preferred. Store away from alkalies. Separate from oxidizing materials. Store in a secure area.
Do not get on skin or in eyes. Do not breathe vapor or mist. Use only with adequate ventilation or respiratory protection. Hastelloy, platinum or gold offer good resistance to corrosion when moisture is present. Most other metals are corroded by this product in the presence of moisture. Kel-F or teflon are the preferred gasket materials.
Storage:
Store in a cool, dry, well-ventilated area away from incompatible substances. Outside or detached storage is preferred. Store away from alkalies. Separate from oxidizing materials. Store in a secure 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 exhaust ventilation to keep airborne concentrations below the permissible exposure limits. Use a corrosion-resistant ventilation system.
Exposure Limits CAS# 7446-09-5: United States OSHA: 5 ppm TWA; 13 mg/m3 TWA Belgium - TWA: 2 ppm VLE; 5.3 mg/m3 VLE Belgium - STEL: 5 ppm VLE; 13 mg/m3 VLE France - VME: 2 ppm VME; 5 mg/m3 VME France - VLE: 5 ppm VLE; 10 mg/m3 VLE Germany: 1 ppm TWA (paper production, chemical and pharmaceutical industries); 2.5 mg/m3 Malaysia: 2 ppm TWA; 5.2 mg/m3 TWA Netherlands: 2 ppm MAC; 5 mg/m3 MAC Russia: 10 mg/m3 TWA Spain: 2 ppm VLA-ED; 5.3 mg/m3 VLA-ED Spain: 5 ppm VLA-EC; 13 mg/m3 VLA-EC Personal Protective Equipment Eyes: Wear chemical splash goggles and face shield.
Skin:
Wear appropriate gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits. Use a corrosion-resistant ventilation system.
Exposure Limits CAS# 7446-09-5: United States OSHA: 5 ppm TWA; 13 mg/m3 TWA Belgium - TWA: 2 ppm VLE; 5.3 mg/m3 VLE Belgium - STEL: 5 ppm VLE; 13 mg/m3 VLE France - VME: 2 ppm VME; 5 mg/m3 VME France - VLE: 5 ppm VLE; 10 mg/m3 VLE Germany: 1 ppm TWA (paper production, chemical and pharmaceutical industries); 2.5 mg/m3 Malaysia: 2 ppm TWA; 5.2 mg/m3 TWA Netherlands: 2 ppm MAC; 5 mg/m3 MAC Russia: 10 mg/m3 TWA Spain: 2 ppm VLA-ED; 5.3 mg/m3 VLA-ED Spain: 5 ppm VLA-EC; 13 mg/m3 VLA-EC Personal Protective Equipment Eyes: Wear chemical splash goggles and face shield.
Skin:
Wear appropriate gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Gas
Color: colorless
Odor: sulfurous odor - irritating odor - suffocating odor
pH: Not applicable.
Vapor Pressure: 2475 mm Hg @ 20 deg C
Viscosity: Not available.
Boiling Point: -10 deg C
Freezing/Melting Point: -76 deg C
Autoignition Temperature: Not applicable.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: dissolves to form sulfurous acid
Specific Gravity/Density: 1.36 @ 25C
Molecular Formula: SO2
Molecular Weight: 64.07
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable at room temperature in closed containers under normal storage and handling conditions.
Conditions to Avoid:
High temperatures, moisture, confined spaces.
Incompatibilities with Other Materials:
Active metals, halogens, brass, zinc, zinc alloys, strong bases, strong oxidizing agents, finely powdered metals.
Hazardous Decomposition Products:
Oxides of sulfur.
Hazardous Polymerization: Will not occur.
Stable at room temperature in closed containers under normal storage and handling conditions.
Conditions to Avoid:
High temperatures, moisture, confined spaces.
Incompatibilities with Other Materials:
Active metals, halogens, brass, zinc, zinc alloys, strong bases, strong oxidizing agents, finely powdered metals.
Hazardous Decomposition Products:
Oxides of sulfur.
Hazardous Polymerization: Will not occur.
Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 7446-09-5: WS4550000 LD50/LC50:
CAS# 7446-09-5: Draize test, rabbit, eye: 6 ppm/32D Mild; Inhalation, mouse: LC50 = 3000 ppm/30M; Inhalation, rat: LC50 = 2520 ppm/1H; Inhalation, rat: LC50 = 2168 mg/m3.
LC50 inhalation: 2520 ppm (rat, 1 hour).
Carcinogenicity:
Sulfur dioxide - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
CAS# 7446-09-5: WS4550000 LD50/LC50:
CAS# 7446-09-5: Draize test, rabbit, eye: 6 ppm/32D Mild; Inhalation, mouse: LC50 = 3000 ppm/30M; Inhalation, rat: LC50 = 2520 ppm/1H; Inhalation, rat: LC50 = 2168 mg/m3.
LC50 inhalation: 2520 ppm (rat, 1 hour).
Carcinogenicity:
Sulfur dioxide - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
Section 12 - ECOLOGICAL INFORMATION
Section 13 - DISPOSAL CONSIDERATIONS
Products which are considered hazardous for supply are classified as Special Waste and the disposal of such chemicals is covered by regulations which may vary according to location. Contact a specialist disposal company or the local waste regulator for advice. Empty containers must be decontaminated before returning for recycling.
Section 14 - TRANSPORT INFORMATION
IATA
Shipping Name: Sulfur Dioxide
Hazard Class: 2.3
UN Number: 1079
Packing Group:
IMO
Shipping Name: SULFUR DIOXIDE
Hazard Class: 2.3
UN Number: 1079
Packing Group:
RID/ADR
Shipping Name: Sulfur Dioxide
Hazard Class: 2.3
UN Number: 1079
Packing group:
Section 15 - REGULATORY INFORMATION
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T
Risk Phrases:
R 23 Toxic by inhalation.
R 34 Causes burns.
Safety Phrases:
S 9 Keep container in a well-ventilated place.
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
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# 7446-09-5: 1
Canada
CAS# 7446-09-5 is listed on Canadas DSL List.
CAS# 7446-09-5 is listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 7446-09-5 is listed on the TSCA inventory.
