MALLINCKRODT INC. SCIENCE PRODUCTS DIVISION -- MERCURIC OXIDE -- 6810-00-247-0599 
=====================  Product Identification  =====================

Product ID:MERCURIC OXIDE
MSDS Date:04/06/1989
FSC:6810
NIIN:00-247-0599
=== Responsible Party ===
Company Name:MALLINCKRODT INC. SCIENCE PRODUCTS DIVISION
Address:PARIS BYPASS
Box:M
City:PARIS
State:KY
ZIP:40361
Country:US
Info Phone Num:800-354-2050(PRESS 3)/314-982-5000
Emergency Phone Num:800-354-2050/314-539-1600
CAGE:62910
=== Contractor Identification ===
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:MERCURIC OXIDE  (SARA III)
CAS:21908-53-2
RTECS #:OW8750000
Other REC Limits:NONE SPECIFIED
OSHA PEL:0.1 MG HG/M3;SKIN;C
ACGIH TLV:0.1 MG HG/M3; 9192

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

LD50 LC50 Mixture:LD50 (ORAL RAT) IS 18 MG/KG
Routes of Entry: Inhalation:YES  Skin:YES  Ingestion:YES
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:ACUTE-INHALE:IRRITATION,SORE
    THROAT,COUGHING,LABORED BREATHING & HEADACHE.EYE:MAY CAUSE
    IRRITATION/ULCERATION OF CORNEA.SKIN:MAY CAUSE
    IRRITATION,DERMATITIS/SENSITIVITY.MAY BE ABSORBED THROUGH SKIN.OR
    AL:MAY CAUSE BURNS,ABDOMINAL PAIN,VOMITING,BLOODY DIARRHEA,COLLAPSE
    & EVEN DEATH.CHRONIC-CAN PRODUCE CNS & KIDNEY DAMAGE
Effects of Overexposure:INHALATION MAY CAUSE IRRITATION OF THE
    RESPIRATORY TRACT, SORE THROAT, COUGHING, LABORED BREATHING &
    HEADACHE. MAY CAUSE EYE IRRITATION/ULCERATION. MAY CAUSE SKIN
    IRRITATION, DERMATITIS/SENSITIVITY. M AY BE ABSORBED THROUGH SKIN.
    ORALLY MAYCAUSE BURNS, ABDOMINAL PAIN, VOMITING, BLOODY DIARRHEA,
    COLLAPSE & EVEN DEATH.
Medical Cond Aggravated by Exposure:PERSONS WITH PRE-EXISTING NERVOUS
    DISORDERS OR ALLERGIES OR IMPAIRED KIDNEY OR RESPIRATORY FUNCTION
    OR A KNOWN SENSITIZATION TO MERCURY MAY BE MORE SUSCEPTIBLE TO THE
    EFFECTS OF THE SUBSTANCE.

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

First Aid:GET MEDICAL ATTENTION IMMEDIATELY.EYE/SKIN:IMMEDIATELY FLUSH
    WITH WATER FOR AT LEAST 15 MINUTES.HOLD EYELIDS OPEN.INHALED:REMOVE
    TO FRESH AIR & PROVIDE OXYGEN/CPR IF NEEDED.ORAL:INDUCE VOMITING BY
    GIV ING TWO GLASSES WATER/MILK & STICKING FINGER DOWN THROAT.CALL A
    PHYSICIAN IMMEDIATELY.NEVER GIVE ANYTHING BY MOUTH TO AN
    UNCONSCIOUS PERSON.

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

Flash Point:NONE
Extinguishing Media:USE ANY MEANS SUITABLE FOR EXTINGUISHING
    SURROUNDING FIRE. COOL FIRE EXPOSED CONTAINERS WITH WATER SPRAY.
Fire Fighting Procedures:WEAR FULL PROTECTIVE CLOTHING AND
    NIOSH-APPROVED SELF-CONTAINED BREATHING APPARATUS WITH FULL
    FACEPIECE OPERATED IN THE POSITIVE PRESSURE MODE.
Unusual Fire/Explosion Hazard:EMITS OXYGEN AND TOXIC FUMES OF MERCURY
    WHEN HEATED TO DECOMPOSITION. AT 400 C BECOMES ALMOST BLACK BUT RED
    AGAIN ON COOLING.

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

Spill Release Procedures:VENTILATE AREA. WEAR PROTECTIVE CLOTHING &
    RESPIRATORY PROTECTION FROM DUST. PICK UP SPILLS AND PLACE IN A
    SUITABLE CONTAINER FOR RECLAMATION/DISPOSAL IN A METHOD THAT DOES
    NOT GENERATE DUST. SPRINKLE  AREA WITH SULFUR TO SUPPRESS MERCURY.
Neutralizing Agent:NONE

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

Handling and Storage Precautions:STORAGE-STORE IN TIGHTLY CLOSED
    CONTAINER IN COOL,DRY,VENTILATED AREA AWAY FROM INCOMPATIBLE
    MATERIALS.
Other Precautions:AVOID CONTACT WITH EYES, SKIN OR CLOTHING. AVOID
    BREATHING DUST. KEEP OUT OF REACH OF CHILDREN. WASH THOROUGHLY
    AFTER HANDLING AND BEFORE EATING OR DRINKING. AVOID
    CROSS-CONTAMINATION OF STREET CLOTHE S. DO NOT GENERATE DUST.

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

Respiratory Protection:NONE REQUIRED WHERE ADEQUATE VENTILATION
    CONDITIONS EXIST. IF AIRBORNE CONCENTRATION EXCEEDS TLV, A
    NIOSH-APPROVED DUST/MIST RESPIRATOR IS RECOMMENDED. IF
    CONCENTRATION EXCEEDS CAPACITY OF RESPIRATOR,  USE SELF-CONTAINED
    BREATHING APPARATUS.
Ventilation:PROVIDE SUFFICIENT LOCAL EXHAUST VENTILATION TO CONTROL
    INHALATION EXPOSURES BELOW OSHA'S PEL.
Protective Gloves:RECOMMENDED
Eye Protection:DUST-RESIST SAFETY GOGGLES & FACESHIELD
Other Protective Equipment:EYE WASH STATION, QUICK DRENCH SHOWER AND
    IMPERVIOUS CLOTHING
Work Hygienic Practices:OBSERVE GOOD PERSONAL HYGIENE PRACTICES AND
    RECOMMENDED PROCEDURES.
Supplemental Safety and Health

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

HCC:T3
Decomp Temp:Decomp Text:932F,500C
Spec Gravity:11.14
Solubility in Water:INSOLUBLE
Appearance and Odor:BRIGHT, ORANGE-RED OR ORANGE-YELLOW POWDER -
    ODORLESS

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

Stability Indicator/Materials to Avoid:YES
CL, HYDRAZINE HYDRATE, H2O2, IODINE+METHANOL+ETHANOL, MG, P, NA K
    ALLOY, S, ACETYL NITRATE, BUTADIENE,HYDROCARBONS, SCL2
Stability Condition to Avoid:STABLE UNDER ORDINARY CONDITIONS OF USE &
    STORAGE. DECOMPOSES WITH EXPOSURE TO LIGHT TO OXYGEN AND MERCURY.
Hazardous Decomposition Products:EMITS OXYGEN AND TOXIC FUMES OF
    MERCURY WHEN HEATED TO DECOMPOSITION.

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

Waste Disposal Methods:DISPOSE OF IN ACCORDANCE WITH ALL LOCAL, STATE
    AND FEDERAL REGULATIONS. DO NOT FLUSH TO SEWER.

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