Product ID:SULFUROUS ACID
MSDS Date:04/06/1989
FSC:6810
NIIN:00N045499
MSDS Number: BTXGT

MALLINCKRODT

PARIS, KY 40362
US

Emergency Phone: 314-539-1600

Info Phone: 315-539-1600

Cage: ZA916

MALLINCKRODT SPECIALTY CHEMICALS CO

PHILLIPSBURG, NJ 08865 US

Telephone: 908-859-2151

Cage: 62910

AT LEAST 15 MIN, LIFTING LOWER & UPPER

RTECS: 9999999ZZ

LENGTH FACESHIELD .

RTECS: 9999999ZZ

SULFUROUS ACID

CAS: 7782-99-2

RTECS: WT2775000

Fraction By Weight: 6%

OSHA PEL 2 PPM;5 STEL (SO*2)

ACGIH TLV: 2 PPM;5 STEL (SO*2)

IT CAN CONTROL THE EMISSIONS OF THE CONTAMINANT

RTECS: 9999999ZZ

WORK AREA. PLEASE REFER TO THE ACGIH DOCUMENT,

RTECS: 9999999ZZ

MOST RECENT EDITION FOR DETAILS.

RTECS: 9999999ZZ

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: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)

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.

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 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.

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)

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 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.

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

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.