Product ID:SULFUR DIOXIDE IN AIR
MSDS Date:07/31/1997
FSC:6830
NIIN:00N090112
MSDS Number: CHXMG

SCOTT SPECIALTY GASES

1290 COMBERMERE ST
TROY, MI 48083
US

Emergency Phone: 248-589-2950

Info Phone: 248-589-2950

Cage: 51829

SCOTT SPECIALTY GASES INC

PLUMSTEADVILLE, PA 18949 US

Telephone: 215-766-8861

Cage: 51829

2.1-10,000 PPM.

CAS: 7446-09-5

RTECS: WS4550000

Fraction By Weight: <0.1%

OSHA PEL 5 PPM

ACGIH TLV: 2 PPM;5 STEL

AIR

CAS: 132259-10-0

Fraction By Weight: BALANCE

OSHA PEL N/K

ACGIH TLV: N/K

Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:ACUTE:SULFUR DIOXIDE IS CORROSIVE AND
IRRITATING TO RESPIRATORY TRACT, SKIN AND EYES. SYMPTOMS INCLUDE
BURNING SENSATION, COUGHING, WHEEZING, SHORTNESS OF BREATH,
HEADACHE, NAUSEA AND VOMITING. INHALA TION AT HIGH CONCENTRATIONS
MAY BE FATAL DUE TO SPASM, INFLAMMATION AND EDEMA OF THE LUNGS,
CHEMICAL (EFTS OF OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT
Effects of Overexposure:HLTH HAZ:PNEUMONITIS AND PULMONARY EDEMA. EYE
CONTACT MAY RESULT IN IRRITATION AND INFLAMMATION OF CONJUNCTIVA
AND CORNEA AND DESTRUCTION OF EYE TISSUE. CHRONIC:PULMONARY DISEASE
OR LOSS OF PULMONARY FUNCTIONS.
Medical Cond Aggravated by Exposure:RESPIRATORY PROBLEMS.

First Aid:INHAL:IMMEDIATELY REMOVE VICTIM TO FRESH AIR. IF BREATHING
HAS STOPPED, GIVE ARTIFICIAL RESPIRATION. IF BREATHING IS
DIFFICULT, GIVE OXYGEN. EYES:IMMEDIATELY FLUSH W/COPIOUS AMOUNTS OF
WATER FOR AT LE AST 15 MINUTES. SKIN:IMMEDIATELY FLUSH W/COPIOUS
AMOUNTS OF WATER FOR AT LEAST 15 MINUTES WHILE REMOVING
CONTAMINATED CLOTHING. INGEST:IN THE EVENT OF EXPOSURE, CONSULT MD.

Flash Point:NONFLAMMABLE
Extinguishing Media:USE WHAT IS APPROPRIATE FOR SURROUNDING FIRE.
Fire Fighting Procedures:USE NIOSH APPROVED SCBA & FULL PROTECTIVE
EQUIPMENT . KEEP FIRE EXPOSED CYLINDERS COOL W/WATER SPRAY. IF
POSSIBLE, STOP THE PRODUCT FLOW.
Unusual Fire/Explosion Hazard:CYLINDER RUPTURE MAY OCCUR UNDER FIRE
CONDITIONS.

Spill Release Procedures:EVACUATE & VENTILATE AREA. REMOVE LEAKING
CYLINDER TO EXHAUST HOOD OR SAFE OUTDOOR AREA. SHUT OFF SOURCE IF
POSSIBLE & REMOVE SOURCE OF HEAT. NO ADVERSE ECOLOGICAL EFFECTS ARE
EXPECTED.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:SECURE CYL WHEN USING TO PROT FROM
FALLING. USE SUITABLE HAND TRUCK TO MOVE CYLS. STORE IN WELL VENTED
AREAS. PROT CNTNRS FROM PHYSICAL DMG.
Other Precautions:KEEP VALVE PROT CAP ON CYLS WHEN NOT IN USE. CYLS
SHOULD BE TRANSPORTED IN SECURE UPRIGHT POSITION IN WELL VENTED
TRUCK. DO NOT DEFACE CYLS/LBLS. CYLS SHOULD BE REFILLED BY
QUALIFIED PRODUCERS OF COMP RESSED GAS. SHIPMENT OF COMPRESSED GAS
CYL WHICH HAS NOT BEEN FILLED BY OWNER/WITH HIS WRITTEN CONSE NT IS
A (SUP DAT)

Respiratory Protection:IN CASE OF LEAKAGE, USE NIOSH APPROVED
SELF-CONTAINED BREATHING APPARATUS.
Ventilation:PROVIDE ADEQUATE GENERAL & LOCAL EXHAUST VENTILATION TO
MAINTAIN CONCENTRATIONS BELOW EXPOSURE LIMITS & TO AVOID ASPHY.
Protective Gloves:IMPERVIOUS GLOVES.
Eye Protection:ANSI APPRVD CHEM WORKERS GOGGS & AND FULL LENGTH
FACESHIELD .
Other Protective Equipment:ANSI APPRVD EYE WASH FOUNTAIN & DELUGE
SHOWER . COVERALLS, BOOTS &/OR OTHER RESIST PROT CLTHG. SFTY SHOES
WHEN HNDLG CYLS.
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
OTHER PREC: VIOLATION OF FED LAW (49 CFR). CORROSIVE HIGH PRESSURE
GAS. MAY ACCELERATE COMBUSTION. CAN CAUSE EYE, SKIN AND RESPIRATORY
TRACT BURNS.

Vapor Density:0.980
Spec Gravity:GAS
Evaporation Rate & Reference:GAS
Solubility in Water:0.071
Appearance and Odor:COLORLESS GAS; IRRITATING PUNGENT ODOR.

Stability Indicator/Materials to Avoid:YES
ALUMINUM, CHLORATES, FLUORINE, MAGNESIUM, SODIUM, TIN OXIDE, IRON
OXIDE, CESIUM OXIDE, WATER & STEAM.
Stability Condition to Avoid:STORAGE IN POORLY VENTILATED AREAS. STORE
NEAR A HEAT SOURCE.
Hazardous Decomposition Products:SULFUR DIOXIDE DISSOLVES IN WATER TO
FORM CORROSIVE SULFURIC ACID.

Waste Disposal Methods:TRY TO PVNT ANY DIRECT RELS OF SULFUR DIOXIDE TO
ATM. WHEN LEAKS CAN NOT BE STOPPED, DISCHARGE CYLS AT CONTROLLED
RATE INTO LG AMT OF WATER SOLN OF 15% NAOH/OTHER ALKALI. RETURN
CYLS TO SUPPLIER W/ANY VALVE OUTLET PLUGS/CAPS SECURED & VALVE
PROT CAP IN PLACE. DISPOSE OF NON-REFILLABLE CYLS I/A/W FED , STATE
& LOC REGS.

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.