Product ID:SULFUR DIOXIDE (SULFUROUS ACID ANHYDRIDE)
MSDS Date:06/01/1989
FSC:6810
NIIN:00-300-6128
MSDS Number: BQGMS

STAUFFER CHEMICAL CO

ONE CORPORATE DR
SHELTON, CT 06484
US

Emergency Phone: 203-226-6602;800-424-9300(CHEMTREC)

Info Phone: 203-226-6602

Cage: DO667

STAUFFER CHEMICAL COMAPNY

881 WESTPORT, CT 06881 US

Telephone: (203) 226-6602

Cage: DO667

SULFUR DIOXIDE (SARA III)

CAS: 7446-09-5

RTECS: WS4550000

OSHA PEL 5 PPM/5 STEL

ACGIH TLV: 2 PPM/5 STEL; 9293

ATTEMPT TO NEUT W/CHEM AGENTS. OBTAIN MD ASAP.

RTECS: 9999999ZZ

AN ADDNL 15 MINS IF MD IS NOT IMMED AVAIL.

RTECS: 9999999ZZ

VICTIM'S AIRWAY & START MOUTH-TO-MOUTH ARTF RESP,

RTECS: 9999999ZZ

BAG-MASK RESPIRATOR OR A MANUALLY TRIGGERED, O*2

RTECS: 9999999ZZ

VICTIM IS BRTHG, O*2 MAY BE DELIVERED FROM A

RTECS: 9999999ZZ

EQUIP. PROT CLTHG SHOULD BE WORN TO PVNT

RTECS: 9999999ZZ

CASES, IMMED STEPS SHOULD BE TAKEN TO OVERCOME

RTECS: 9999999ZZ

IF NOT CORRECTED PROMPTLY. SMALL LEAKS MAY BE LOCATED

RTECS: 9999999ZZ

SOLN. A DENSE WHITE FUME WILL FORM IF SULFUR DIOXIDE

RTECS: 9999999ZZ

LEAK. THE APPLICATN OF WATER MAKES SULFUR DIOXIDE

RTECS: 9999999ZZ

CONGESTED AREA, EVERY EFFORT SHOULD BE MADE TO

RTECS: 9999999ZZ

BE EXPOSED. A LEAKING SULFUR DIOXIDE CONTR SHOULD BE

RTECS: 9999999ZZ

DIOXIDE WILL ESCAPE. SMALL LIQUIFIED SULFUR DIOXIDE

RTECS: 9999999ZZ

DIOXIDE THRU AN ALKALINE NEUT SOLN. ONE LB OF SULFUR

RTECS: 9999999ZZ

CAUSTIC SODA. FLUSH SMALL SPILLS W/COPIOUS AMTS OF

RTECS: 9999999ZZ

ACCORDING TO A PREDETERMINED PLAN. FOR ASSIST IN

RTECS: 9999999ZZ

BASIC PRODUCTS GROUP, STAUFFER CHEMICAL COMPANY.

RTECS: 9999999ZZ

PROHIBITED IN AREAS WHERE THERE IS A POTNTL

RTECS: 9999999ZZ

HANDS & FACE SHOULD BE THOROUGHLY WASHED.

RTECS: 9999999ZZ

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:INGEST:INGEST OF LIQ SULFUR DIOXIDE
WILL RSLT IN BURNS OF MOUTH & GI TRACT DUE TO FREEZING EFT OF LIQ.
SKIN:CONT OF SULFUR DIOXIDE WILL RSLT IN BURNS. EYE:CONT OF SULFUR
DIOXIDE WILL RSLT IN BURNS. SU LFUR DIOXIDE GAS IS INTENSELY
IRRITATING. INHAL:INHAL OF SULFUR DIOXIDE GAS WILL RSLT IN IRRIT OF
(EFTS OF OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT.
Effects of Overexposure:HLTH HAZ:EYES, THROAT & UPPER RESP SYS. INHAL
EXPOS TO CONC OF 8-12 PPM SULFUR DIOXIDE GAS CAUSES THROAT IRRIT,
COUGHING, CONSTRICTION OF CHEST, TEARING & IRRIT OF EYES. INHAL
EXPOS TO CONC OF 150 PPM SULFUR DIOXIDE GAS IS SO IRRITATING ITCAN
BE ENDURED ONLY A FEW MINS. INHAL EXPOS TO CONC OF 500 PPM SULFUR
(SUP DAT)
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

First Aid:INGEST:DO NOT INDUCE VOM. IMMED GIVE LGE QTYS OF WATER. IF
VOM DOES OCCUR, GIVE FLUIDS AGAIN. NEVER GIVE ANYTHING BY MOUTH TO
AN UNCON PERS. CALL MD OR POIS CTL CTR IMMED. SKIN:IMMED REMOVE
CONTAMD CL THG WIPING AWAY EXCESS MATL. UNDER SFTYSHOWER, FLUSH ALL
AFFECTED AREAS W/LGE AMTS OF WATER FOR AT LEAST 15 MINS. DO NOT
ATTEMPT TO NEUT W/CHEM AGENTS. OBTAIN MD IMMED. EYE:IMMED FLUSH
(SUPP DATA)

Flash Point:NON-FLAMMABLE
Extinguishing Media:USE WATER SPRAY OR FOG, DRY CHEMICAL, FOAM, CARBON
DIOXIDE OR OTHER SUITABLE SUFFOCATION AGENTS.
Fire Fighting Procedures:WEAR NIOSH/MSHA APPRVD SCBA & FULL PROT EQUIP
. KEEP CONTRS COOL W/A WATER SPRAY TO PVNT RELIEF VALVE FROM
POPPING, THEREBY RELSG SULFUR DIOXIDE GAS.
Unusual Fire/Explosion Hazard:POSS RELS OF SULFUR DIOXIDE GAS. AS IN
ANY FIRE, PVNT HUMAN EXPOS FOR FIRE, SMOKE, FUMES OR PRODS OF
COMBUST. EVACUATE NONESSENTIAL PERS FROM THE FIRE AREA.

Spill Release Procedures:MAKE SURE ALL PERS INVOLVED IN SPILL CLEANUP
ARE AWARE OF HAZ ASSOC W/SULFUR DIOXIDE & FOLLOW GOOD INDUS HYGIENE
PRACT. ONLY TRAINED PERS EQUIPPED W/NIOSH/MSHA APPRVD GAS MASKS
&/OR SCBA SHOULD ATTEMP T REPAIRS ON LEAKING SULFUR DIOXIDE (ING 7)
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:SULFUR DIOXIDE SHOULD BE STORED IN
PROPERLY DESIGNED PRESS VESSELS. BULK QTYS MAY BE STORED IN OUTDOOR
STOR TANKS EQUIPPED PROPERLY FOR THIS SERVICE.
Other Precautions:NONE SPECIFIED BY MANUFACTURER.

Respiratory Protection:WHERE ADEQ VENT IS NOT AVAIL & THERE IS A
POSSIBLITY OF GAS OR LIQUID RELS, CONTROL OF LOW-LEVEL INHAL EXPOS
CAN BE ACHIEVED THRU USE OF A NIOSH/MSHA APPROVED FULL-FACE PIECE,
ACID-GAS CARTRIDGE, AIR- PURIFYING RESPIRATOR.
Ventilation:THIS MATERIAL SHOULD ONLY BE HANDLED IN WELL-VENTILATED OR
OPEN AREAS.
Protective Gloves:IMPERVIOUS GLOVES.
Eye Protection:CHEM WORK GOGGS/FULL LENGTH FSHLD
Other Protective Equipment:SKIN CONTACT SHOULD BE PREVENTED THRU USE OF
IMPERVIOUS CLOTHING & FOOTWEAR.
Work Hygienic Practices:ALL FOOD SHOULD BE KEPT IN A SEPARATE AREA AWAY
FROM WORKING LOCATION. EATING/DRINKING/SMKNG SHOULD BE (ING 19)
Supplemental Safety and Health
VP:22.4 PSIA @ 32F; 49.1 PSIA @ 70F; 84.1 PSIA @ 100F. EFTS OF
OVEREXP:DIOXIDE GAS IS SO INTENSELY IRRITATING THAT IT CAUSES A
SENSE OF SUFFOCATION. FIRST AID PROC:W/LGE QTYS OF RUNNING WATER
FOR AT L EAST 15 MINS. HOLD EYELIDS APART DURINGFLUSHING TO ENSURE
RINSING OF ENTIRE SURF OF EYE & LIDS W/WATER. DO NOT (ING 2)

Boiling Pt:B.P. Text:14F,-10C
Melt/Freeze Pt:M.P/F.P Text:168F,76C
Vapor Pres:SUPP DATA
Vapor Density:2.26
Spec Gravity:1.36 @ 25C
Solubility in Water:11G/100G H*2O @ 20C
Appearance and Odor:COLORLESS, COMPRESSED LIQUIFIED GAS; PUNGENT ODOR.

Stability Indicator/Materials to Avoid:YES
REACTS VIOLENTY W/ALKALIES & ACTS AS AN ACID IN THE PRESENCE OF
CHLORATES. IT REACTS TO FORM UNSTABLE CHLORINE DIOXIDE.
Stability Condition to Avoid:NONE SPECIFIED BY MANUFACTURER.
Hazardous Decomposition Products:NONE SPECIFIED BY MANUFACTURER.

Waste Disposal Methods:FOR ASSISTANCE IN DISPOSING OF UNUSED MATERIAL,
CONTACT THE TECHNICAL SERVICE DEPARTMENT, BASIC PRODUCTS GROUP,
STAUFFER CHEMICAL COMPANY. DISPOSAL MUST BE IN ACCORDANCE
W/FEDERAL, STATE & LOCAL REGUL ATIONS .

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