Product ID:SULFUR DIOXIDE
MSDS Date:05/08/1992
FSC:6830
NIIN:00N048961
MSDS Number: BVCMG

SCOTT SPECIALTY GASES, INC

6141 EASTON RD
PLUMSTEADVILLE, PA 18949
US

Emergency Phone: 215-766-8851

Info Phone: 215-766-8851

Cage: 51829

SCOTT SPECIALTY GASES INC

PLUMSTEADVILLE, PA 18949 US

Telephone: 215-766-8861

Cage: 51829

SULFUR DIOXIDE (SARA III)

CAS: 7446-09-5

RTECS: WS4550000

Fraction By Weight: 100%

OSHA PEL 5 PPM/5 STEL

ACGIH TLV: 2 PPM/5 STEL

1.5 @ -10C (H*20=1)

RTECS: 9999999ZZ

OSHA PEL N/K

ACGIH TLV: N/K

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES Skin:YES Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:ACUTE:CORR & IRRITATING TO UPPER RESP
TRACT, SKIN, & EYES. CONT W/LIQ SO*2 MAY CAUSE SKIN BURNS.
EXCESSIVE INHAL MAY CAUSE BURNING SENSATIONS, COUGHING, SHORTNESS
OF BREATH, HEADACHE, NAUSEA, AND VOMI TING. MAY PRODUCE BRONCHITIS,
CHEM PNEUMONITIS, & PULMONARY EDEMA. EYE CONT MAY RSLT IN
DESTRUCTION (EFTS OF OVEREXP)
Explanation of Carcinogenicity:MAY REACT WITH MOISTURE TO PRODUCE
SULFURIC ACID MIST WHICH IS LISTED AS A GROUP 1 CARCINOGEN BY IARC,
V 54, 1992
Effects of Overexposure:HEALTH HAZARDS:OF EYE TISSUE. EXCESSIVE
EXPOSURES CAN BE FATAL. CHRONIC:PULMONARY DISEASE OR LOSS OF
PULMONARY FUNCTION.
Medical Cond Aggravated by Exposure:PULMONARY DISEASES.

First Aid:INGEST:CALL MD IMMEDIATELY . INHAL:IMMEDIATELY REMOVE VICTIM
TO FRESH AIR. IF BREATHING HAS STOPPED, GIVE ARTIFICIAL
RESPIRATION. IF BREATHING IS DIFFICULT, GIVE OXYGEN.
SKIN/EYE:IMMEDIATELY FLU SH WITH COPIOUS AMOUNTS OF WATER FOR
ATLEAST 15 MINUTES WHILE REMOVING CONTAMINATED CLOTHING. SEEK
MEDICAL ATTENTION IMMEDIATELY.

Extinguishing Media:USE THAT WHICH IS APPROPRIATE FOR SURROUNDING FIRE.
Fire Fighting Procedures:USE NIOSH/MSHA APPROVED SCBA & FULL PROTECTIVE
EQUIPMENT . WATER SPRAY CAN BE USED TO COOL FIRE EXPOSED CYLINDERS.
Unusual Fire/Explosion Hazard:ANHYDROUS SO*2 REACTS W/CHLORATES TO
PRODUCE CHLORINE PEROXIDE WHICH PRESENTS AN EXPLOSIVE HAZ.
CYLINDERS EXPOSED TO FIRE MAY RUPTURE W/VIOLENT FORCE.

Spill Release Procedures:EVACUATE & VENT AREA. WEAR PROT EQUIPMENT.
ATTEMPT TO STOP LEAK IF THIS CAN BE DONE SAFELY. REMOVE LEAKING
CYLINDER TO EXHAUST HOOD OR SAFE OUTDOORS AREA IF THIS CAN BE DONE
SAFELY.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:STORE IN WELL VENT AREAS ONLY. KEEP
VALVE PROT CAP ON CYLS WHEN NOT IN USE & SECURE CYL WHEN USING TO
PROT FROM FALLING. DO NOT DEFACE CYLS/LABELS.
Other Precautions:USE SUITABLE HAND TRUCK TO MOVE CYLS. PROT CNTNRS
FROM PHYSICAL DMG. MOVE CYL W/ADEQ HAND TRUCK. CYL SHOULD BE
REFILLED BY QUALIFIED PRODUCERS OF COMPRESSED GASES. SHIPMENT OF A
COMPRESSED GAS CYL WHI CH HAS NOT BEEN FILLED BY OWNER (SUPDAT)

Respiratory Protection:NIOSH/MSHA APPROVED SCBA IN CASE OF EMERGENCY OR
NON-ROUTINE USE.
Ventilation:SULFUR DIOXIDE SHOULD BE HANDLED IN FUME HOOD. PROVIDE ADEQ
GEN & LOCAL EXHAUST VENT TO MAINTAIN CONC BELOW EXPOS LIMS.
Protective Gloves:IMPERVIOUS GLOVES .
Eye Protection:ANSI APPRVD CHEM WORKERS GOGGLES .
Other Protective Equipment:SAFETY SHOES WHEN HANDLING GAS CYLS. SAFETY
SHOWER AND EYEWASH STATION SHOULD BE AVAILABLE.
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
MATLS TO AVOID:OXIDE, BASES, OXIDIZING MATLS, UNSATURATED ORGANICS.
WASTE DISP METH:CYLS TO SUPPLIER FOR PROPER DISP W/ANY VALVE OUTLET
PLUGS/CAPS SECURED & VALVE PROT CAP IN PLACE. DISPOSE OF I/A/W F
ED, STATE & LOCAL REGS . OTHER PREC:OR W/HIS WRITTEN CONSENT IS A
VIOLATION OF FED LAW (49 CFR).

HCC:G6
Boiling Pt:B.P. Text:14F,-10C
Vapor Pres:ING 2
Vapor Density:2.26 @25C
Spec Gravity:ING 2
Solubility in Water:10.2% BY WEIGHT
Appearance and Odor:COLORLESS GAS WITH AN IRRITATING PUNGENT ODOR
Percent Volatiles by Volume:100

Stability Indicator/Materials to Avoid:YES
ALUMINUM, CESIUM OXIDE, CHLORATES, CHROMIUM IRON OXIDE, FLUORINE,
MANGANESE, POTASSIUM CHLORATE, SODIUM, TIN (SUPDAT)
Stability Condition to Avoid:WILL REACT WITH WATER OR STEAM TO PRODUCE
TOXIC AND CORROSIVE FUMES.
Hazardous Decomposition Products:SULFUR TRIOXIDE AND SULFURIC ACID.

Waste Disposal Methods:TRY TO PVNT DIRECT RELEASE TO ATMOSPHERE.
DISCHARGE SO*2 AT A CONTROLLED RATE INTO A LG AMT OF WATER SOLN OF
15% OF NAOH OR OTHER SUITABLE ALKALI. ALKALINE SULFITE SOLN CAN BE
OXIDIZED TO INERT SULFAT E SALTS OR SHIPPED FOR DISPOSAL.
RETURN(SUPDAT)

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This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.