MALLINCKRODT -- SULFUROUS ACID -- 6810-00N045499 
=====================  Product Identification  =====================

Product ID:SULFUROUS ACID
MSDS Date:04/06/1989
FSC:6810
NIIN:00N045499
=== Responsible Party ===
Company Name:MALLINCKRODT
Box:800
City:PARIS
State:KY
ZIP:40362
Country:US
Info Phone Num:315-539-1600
Emergency Phone Num:314-539-1600
CAGE:ZA916
=== Contractor Identification ===
Company Name:MALLINCKRODT MEDICAL, INC
Address:2703 WAGNER PLACE
Box:M
City:MARYLAND HEIGHTS
State:MO
ZIP:63043
Country:US
Phone:314-770-7800
CAGE:ZA916
Company Name:MALLINCKRODT SPECIALTY CHEMICALS CO
Address:222 RED SCHOOL LANE
Box:City:PHILLIPSBURG
State:NJ
ZIP:08865
Country:US
Phone:908-859-2151
CAGE:62910

=============  Composition/Information on Ingredients  =============

Ingred Name:FIRST AID PROC: AT LEAST 15 MIN, LIFTING LOWER & UPPER
    EYELIDS OCCASNLY. GET MED ATTN IMMEDIATELY.
RTECS #:9999999ZZ

Ingred Name:EYE PROT: LENGTH FACESHIELD .
RTECS #:9999999ZZ
Other REC Limits:NONE RECOMMENDED

Ingred Name:SULFUROUS ACID
CAS:7782-99-2
RTECS #:WT2775000
Fraction by Wt: 6%
OSHA PEL:2 PPM;5 STEL (SO*2)
ACGIH TLV:2 PPM;5 STEL (SO*2)

Ingred Name:SUPP DATA: IT CAN CONTROL THE EMISSIONS OF THE CONTAMINANT
    AT ITS SOURCE, PREVENTING DISPERSION OF IT INTO THE (ING 3)
RTECS #:9999999ZZ

Ingred Name:ING 2: WORK AREA. PLEASE REFER TO THE ACGIH DOCUMENT,
    "INDUSTRIAL VENTILATION, A MANUAL OF RECOMMENDED PRACTS", (ING 4)
RTECS #:9999999ZZ

Ingred Name:ING 3: MOST RECENT EDITION FOR DETAILS.
RTECS #:9999999ZZ

=====================  Hazards Identification  =====================

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES  Skin:NO  Ingestion:YES
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:INHAL: MIST AND VAPORS CAUSE IRRIT OF
    RESP TRACT. CAN CAUSE SYSTEMIC ACIDOSIS OR PULM EDEMA AT MODERATE
    CONCS. INGEST: CORROSIVE TO THE MOUTH, THROAT & ESOPHAGUS, WITH
    IMMED PAIN. UNCONTROLLED VOMITIN G MAY OCCUR. SKIN: IRRITANT TO
    SKIN TISSUES, PARTICULARLY TO OPEN WOUNDS. EYE: CORROSIVE TO EYES.
    (EFTS OF OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT
Effects of Overexposure:HLTH HAZ: CAN DAMAGE EYE TISSUE. CHRONIC:
    PROLONGED OR REPEATED EXPOSURE MAY CAUSE A NARROWING OF THE
    ESOPHAGUS AND STOMACH.
Medical Cond Aggravated by Exposure:PERSONS WITH PRE-EXISTING SKIN
    DISORDERS OR IMPAIRED RESPIRATORY FUNCTION MAY BE MORE SUSCEPTIBLE
    TO THE EFFECTS OF THE SUBSTANCE.

=======================  First Aid Measures  =======================

First Aid:INGEST:GIVE SEVERAL GLASSES OF WATER/MILK TO DRINK. VOMIT MAY
    OCCUR SPONTANEOUSLY, BUT DO NOT INDUCE! NEVER GIVE ANYTHING BY
    MOUTH TO AN UNCONSCIOUS PERSON. INHAL:REMOVE TO FRESH AIR. IF NOT
    BRTHG, GI VE ARTF RESP. IF BRTHG IS DIFFICULT, GIVE OXYGEN.
    SKIN:IMMED FLUSH SKIN W/PLENTY OF WATER FOR @ LST 15 MIN WHILE
    REMOVING CONTAM CLTHG & SHOES. CALL MD. EYE: WASH EYE W/PLENTY OF
    WATER FOR (ING 5)

=====================  Fire Fighting Measures  =====================

Extinguishing Media:USE ANY MEANS SUITABLE FOR EXTINGUISHING
    SURROUNDING FIRE.
Fire Fighting Procedures:IN THE EVENT OF A FIRE, WEAR NIOSH/MSHA
    APPROVED SCBA AND FULL PROT EQUIP .
Unusual Fire/Explosion Hazard:NOT CONSIDERED TO BE A FIRE OR EXPLOSION
    HAZARD. RELEASES SULFUR DIOXIDE ON HEATING.

==================  Accidental Release Measures  ==================

Spill Release Procedures:VENT & DIKE AREA OF LEAK/SPILL. DO NOT FLUSH
    TO SEWER. CLEAN-UP PERSONNEL REQUIRE PROT CLTHG. CNTN & RECOVER
    SPILL WHEN POSSIBLE. COVER SPILLS THAT CANNOT BE RECOVERED W/SODIUM
    BICARBONATE OR SODA ASH  & MIX. ABSORB W/VERMICULITE, (SUPP DATA)
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

======================	Handling and Storage  ======================

Handling and Storage Precautions:AVOID BRTHG VAPOR. DO NOT GET IN EYES,
    ON SKIN, OR ON CLOTHING. STORE IN A TIGHTLY CLOSED CONTAINER. USE
    WITH ADEQUATE VENTILATION.
Other Precautions:PROT FROM PHYSICAL DMG. STORE IN A COOL, DRY WELL
    VENT AREA AWAY FROM SOURCES OF HEAT/MOISTURE & INCOMPATIBILITIES.
    PROT FROM FREEZING. DANGER! CORROSIVE. CAUSES BURNS. HARMFUL IF
    SWALLOWED OR INHALED . CONTACT LENSES SHOULD NOT BE WORN.

=============  Exposure Controls/Personal Protection  =============

Respiratory Protection:IF TLV IS EXCEEDED A NIOSH/MSHA APPRVD FULL
    FACEPIECE CHEM CARTRIDGE RESP MAY BE WORN, IN GENERAL, UP TO 100
    TIMES THE TLV OR THE MAX USE CONC SPECIFIED BY THE RESP SUPPLIER,
    WHICHEVER IS LESS. ALTERN ATIVELY, A NIOSH/MSHA APPRVD (SUPP DATA)
Ventilation:A SYS OF LOC &/OR GEN EXHST IS RECOMMENDED TO KEEP EMPLOYEE
    EXPOSURES BELOW THE AIRBORNE EXPOSURE LIMITS. (SUPP DATA)
Protective Gloves:IMPERVIOUS GLOVES.
Eye Protection:ANSI APPVD CHEM WORK GOGG W/FULL (ING 6)
Other Protective Equipment:LAB COAT, APRON OR CVRALLS TO PREV SKIN
    CONTACT. MAINT ANSI APPVD EYEWASH FOUNT & QUICK-DRNCH FACIL IN WRK
    AREA .
Work Hygienic Practices:WASH THOROUGHLY AFTER HANDLING.
Supplemental Safety and Health
BOILING PT:LOSES SULFUR DIOXIDE. SPILL PROC: DRY SAND, EARTH, OR
    SIMILAR MATL. TRANSFER NEUTRALIZED WASTE TO A CLOSED, PREFERABLY
    METAL CONTAINER FOR DISPOSAL IN A RCRA APPROVED FACILITY. RESP:
    SUPPLI ED AIR FULL FACEPIECE RESP OR AIRLINED HOOD MAY BE WORN.
    VENT: LOC EXHST VENT IS GENERALLY PREFERRED BECAUSE (ING 2)

==================  Physical/Chemical Properties  ==================

HCC:T6
Boiling Pt:B.P. Text:SUPP DATA
Melt/Freeze Pt:M.P/F.P Text:29.3F,-1.5C
Spec Gravity:1.05
Solubility in Water:MISCIBLE W/WATER
Appearance and Odor:CLEAR ALMOST COLORLESS SOLUTION. PUNGENT ODOR OF
    SULFUR DIOXIDE.

=================  Stability and Reactivity Data  =================

Stability Indicator/Materials to Avoid:YES
OXIDIZING AGENTS, ALKALIES, COMPOUNDS EASILY REDUCED.
Stability Condition to Avoid:GRADUALLY OXIDIZES IN AIR TO SULFURIC
    ACID.
Hazardous Decomposition Products:TOXIC SULFUR DIOXIDE FUMES ARE
    RELEASED WHEN HEATED TO DECOMPOSITION.

====================  Disposal Considerations  ====================

Waste Disposal Methods:ENSURE COMPLIANCE WITH LOCAL, STATE AND FEDERAL
    REGULATIONS.

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