Product ID:SULFUR DIOXIDE
MSDS Date:05/08/1992
FSC:6830
NIIN:00N030430
MSDS Number: CDKXJ

SCOTT SPECIALTY GASES INC

6141 EASTON RD
PLUMSTEADVILLE, PA 18949
US

Emergency Phone: 215-766-8861

Info Phone: 215-766-8861

Cage: 51847

SCOTT SPECIALTY GASES

310 PLUMSTEADVILLE, PA 18934 US

Telephone: 215-766-0416

Cage: 51847

SULFUR DIOXIDE (SARA 302)

CAS: 7446-09-5

RTECS: WS4550000

Fraction By Weight: 100%

OSHA PEL 5 PPM

ACGIH TLV: 2 PPM/5 STEL

& FULL LENGTH FACESHIELD .

RTECS: 9999999ZZ

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:CORROSIVE AND IRRITATING TO
UPPER RESPIRATORY TRACT, SKIN, AND EYES. CONTACT W/LIQUID SO*2 MAY
CAUSE SKIN BURNS. EXCESSIVE INHALATION MAY CAUSE BURNING
SENSATIONS, COUGHING, SHORTNESS OF BREATH, HEADACHE, NAUSEA, &
VOMITING. MAY PRODUCE BRONCHITIS, CHEMICAL PNEUMONITIS, & PULMONARY
EDEMA. EYE (EFTS OF OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT.
Effects of Overexposure:HLTH HAZ:CONTACT MAY RESULT IN DESTRUCTION OF
EYE TISSUE. EXCESSIVE EXPOSURE 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:IMMED REMOVE VICTIM TO
FRESH AIR. IF BRTHG HAS STOPPED, GIVE ARTF RESP. IF BRTHG IS DFCLT,
GIVE OXYG. SKIN/EYE CONT:IMMED FLUSH W/COPIOUS AMTS OF WATER FOR AT
LEAST 15 MINS WHILE REMOVING CONTAMD CLOTHING. SEEK MEDICAL
ATTENTION IMMEDIATELY.

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

Spill Release Procedures:EVACUATE & VENTILATE AREA. WEAR PROTECTIVE
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 VENTILATED AREAS ONLY.
KEEP VALVE PROT CAP ON CYLINDERS WHEN NOT IN USE & SECURE CYL WHEN
USING TO PROTECT FROM FALLING.
Other Precautions:USE SUITABLE HAND TRUCK TO MOVE CYLS. PROTECT CNTNRS
FROM PHYSICAL DMG. DO NOT DEFACE CYLS/LBLS. MOVE CYL W/ADEQ HAND
TRUCK. CYL SHOULD BE REFILLED BY QUALIFIED PRODUCERS OF COMPRESSED
GASES. SHIPMENT OF COMPRESSED GAS CYL WHICH HAS(SUPDAT)

Respiratory Protection:NIOSH APPROVED SELF-CONTAINED BREATHING
APPARATUS IN CASE OF EMERGENCY OR NON-ROUTINE USE.
Ventilation:SULFUR DIOXIDE SHOULD BE HNDLD IN FUME HOOD. PROVIDE ADEQ
GEN & LOC EXHAUST VENT TO MAINTAIN CONC BELOW EXPOS LIMITS.
Protective Gloves:IMPERVIOUS GLOVES .
Eye Protection:ANSI APPRVD CHEM WORKERS GOGGS (ING 2)
Other Protective Equipment:SAFETY SHOES WHEN HANDLING GAS CYLINDERS.
ANSI APPRVD EYE WASH & DELUGE SHOWER .
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
MATLS TO AVOID:OXIDE, BASES, OXIDIZING MATERIALS, UNSATURATED ORGANICS.
WASTE DISP METH:SALTS/SHIPPED FOR DISP. RETURN CYLINDERS TO
SUPPLIER FOR PROPER DISP W/ANY VALVE OUTLET PLUGS/CAPS SECURED &
VAL VE PROT CAP IN PLACE. OTHER PREC:NOT BEEN FILLED BY OWNER OR
W/WRITTEN CONSENT IS VIOLATION OF FEDERAL LAW (49 CFR).

Boiling Pt:B.P. Text:14F,-10C
Vapor Pres:34.4 PSIG
Vapor Density:2.26
Spec Gravity:1.5 (H*2O=1)
Solubility in Water:@ 25C 10.2% BY WT
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,
MAGNESE, 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:DISP MUST BE I/A/W FEDERAL, STATE & LOCAL REGS .
TRY TO PVNT DIRECT RELEASE TO ATM. DISCHARGE SO*2 @ CONTROLLED RATE
INTO LG AMT OF WATER SOLN OF 15% OF NAOH/OTHER SUITABLE ALKALI.
ALKALINE SULF ITE SOLN CAN BE OXIDIZED TO INERT SULFATE (SUPDAT)

Disclaimer (provided with this information by the compiling agencies):
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.