=====================  Product Identification  =====================

MSDS NAME:P-CHLOROMERCURIBENZOIC ACID FREE ACID, C4378
NIIN:00N092453
Status Code:A
MSDS Number: CJVSH
=== Responsible Party ===
Company:SIGMA CHEMICAL CO
Box:14508
City:ST LOUIS
State:MO
ZIP:63178
Country:US
Info Phone Num:314-771-5765
Emergency Phone Num:314-771-5765
CAGE:21076
=== Contractor Identification ===
Company:SIGMA CHEMICAL COMPANY
Address:3050 SPRUCE ST
Box:14508
City:ST LOUIS
State:MO
ZIP:63178
Country:US
Phone:314-771-5765
CAGE:21076

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

Name:MERCURY, (P-CARBOXYPHENYL) CHLORO-; (P-CHLOROMERCURIBENZOIC
    ACID FREE ACID)
CAS:59-85-8
RTECS #:OV8050000
Code:F

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

LD50 LC50 Mixture:SEE TOXICOLOGICAL INFO
Routes of Entry: Inhalation:YES  Skin:YES  Ingestion:YES
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:ACUTE EFFECTS: MAY BE FATAL IF
    INHALED, SWALLOWED OR ABSORBED THROUGH SKIN. CAUSES EYE AND SKIN
    IRRITATION. MATERIAL IS IRRITATING TO MUCOUS MEMBRANES AND UPPER
    RESPIRATORY TRACT. MAY CAUSE NERVOUS SY STEM DISTURBANCES. TARGET
    ORGAN: NERVES. CHRONIC: MERCURY APPEARS ON THE NAVY LIST OF
    OCCUPATIONAL CHEMICAL REPRODUCTIVE HAZARDS. SEEK CONSULTATION FROM
    APPROPRIATE HEALTH PROFESSIONALS CONCERING LATE ST HAZARD LIST INFO
    AND SAFE HANDLING AND EXPOSURE INFO . ALSO, SEE TOXICOLOGICAL INFO.
Effects of Overexposure:SEE HEALTH HAZARDS.

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

Eyes: IN CASE OF CONTACT, IMMEDIATELY FLUSH EYES WITH COPIOUS
    AMOUNTS OF WATER FOR AT LEAST 15 MINUTES. SKIN: IN CASE OF CONTACT,
    IMMEDIATELY FLUSH SKIN WITH COPIOUS AMOUNTS OF WATER FOR AT LEAST
    15 M INUTES WHILE REMOVING CONTAMINATED CLOTHING AND SHOES.
    INHALATION: IF INHALED, REMOVE TO FRESH AIR. IF NOT BREATHING GIVE
    ARTIFICIAL RESPIRATION. IF BREATHING IS DIFFICULT, GIVE OXYGEN.
    INGESTION: IF  SWALLOWED, WASH OUT MOUTH WITH WATER PROVIDED PERSON
    IS CONSCIOUS. CALL A PHYSICIAN IMMEDIATELY. REMOVE AND WASH
    CONTAMINATED CLOTHING PROMPTLY.

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

Extinguishing Media:WATER SPRAY. CARBON DIOXIDE, DRY CHEMICAL POWDER OR
    APPROPRIATE FOAM.
Fire Fighting Procedures:USE NIOSH APPROVED SCBA AND FULL PROTECTIVE
    EQUIPMENT  TO PREVENT CONTACT WITH SKIN AND EYES.
Unusual Fire/Explosion Hazard:EMITS TOXIC FUMES UNDER FIRE CONDITIONS.

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

Spill Release Procedures:WEAR NIOSH APPROVED SELF-CONTAINED BREATHING
    APPARATUS, RUBBER BOOTS AND HEAVY RUBBER GLOVES. SWEEP UP, PLACE IN
    A BAG AND HOLD FOR WASTE DISPOSAL. AVOID RAISING DUST. VENTILATE
    AREA AND WASH SPILL SI TE AFTER MATERIAL PICKUP IS COMPLETE.

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

Handling and Storage Precautions:KEEP TIGHTLY CLOSED. STORE IN A COOL,
    DRY PLACE.
Other Precautions:DO NOT BREATHE DUST. DO NOT GET IN EYES, ON SKIN, ON
    CLOTHING. AVOID PROLONGED OR REPEATED EXPOSURE. WASH THOROUGHLY
    AFTER HANDLING. HIGHLY TOXIC. IRRITANT. NEUROLOGICAL HAZARD.

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

Respiratory Protection:WEAR APPROPRIATE NIOSH APPROVED RESPIRATOR.
Ventilation:USE ONLY IN A CHEMICAL FUME HOOD.
Protective Gloves:CHEMICAL-RESISTANT GLOVES.
Eye Protection:ANSI APPROVED CHEMICAL WORKERS GOGGLES .
Other Protective Equipment:ANSI APPROVED EYE WASH AND DELUGE SHOWER .
    OTHER PROTECTIVE CLOTHING.
Supplemental Safety and Health

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

Melt/Freeze Pt:=287.C, 548.6F
Appearance and Odor:WHITE POWDER.

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

Stability Indicator/Materials to Avoid:YES
REDUCING AGENTS, ALUMINUM.
Hazardous Decomposition Products:CARBON MONOXIDE, CARBON DIOXIDE.
    HYDROGEN CHLORIDE GAS. MERCURY/MERCURY OXIDES.

===================  Toxicological Information	===================

Toxicological Information:RTECS #: OV8050000 MERCURY, (P-CARBOXYPHENYL)
    CHLORO-. TOXICITY DATA: IPR-MUS LD50: 25 MG/KG NTIS AD277-689. ONLY
    SELECTED REGISTRY OF TOXIC EFFECTS OF CHEMICAL SUBSTANCES (RTECS)
    DATA IS PRESENTED HE RE. SEE ACTUAL ENTRY IN RTECS FOR COMPLETE
    INFORMATION.

=====================  Ecological Information  =====================

Ecological:DATA NOT YET AVAILABLE. FEDERAL REG INFO: 0.05 MG(HG)/M3;
    SKIN JAN 1993. OEL-BELGIUM: TWA 0.05 MG(HG/M3; SKIN JAN 1993.
    OEL-DENMARK: TWA 0.05 MG(HG)/M3 JAN 1993. OEL-FINLAND: TWA 0.05
    MG(HG)/M3 JAN 19 93. OEL-FRANCE: TWA 0.05 MG(HG)/M3 JAN 1993.
    OEL-GERMANY: TWA 0.01 PPM (0.1 MG(HG)/M3) JAN 1993. OEL-HUNGARY:
    TWA 0.02 MG(HG)/M3; STEL 0.04 MG(HG)/M3 JAN 1993. OEL-JAPAN:TWA
    0.05 MG(HG)/M3 JAN 1993. O EL-THE NETHERLANDS: TWA 0.05 MG(HG)/M3;
    STEL 0.15 MG(HG)/M3 JAN 1993. OEL-THE PHILIPPINES: TWA 0.05
    MG(HG)/3 JAN 1993. OEL-POLAND: TWA 0.01 MG(HG)/M3 JAN 1993.
    OEL-RUSSIA: TWA 0.05 MG(HG)/M3; STEL 0.0 1 MG(HG)/M3 JAN 1993.
    (TRANSPORT INFO)

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

Waste Disposal Methods:CONTACT A LICENSED PROFESSIONAL WASTE DISPOSAL
    SERVICE TO DISPOSE OF THIS MATERIAL. OBSERVE ALL FEDERAL, STATE AND
    LOCAL ENVIRONMENTAL REGULATIONS.

===================  MSDS Transport Information  ===================

Transport Information:CONTACT SIGMA CHEMICAL COMPANY FOR TRANSPORTATION
    INFORMATION. ECOLOGICAL INFO: OEL-SWEDEN: TWA 0.05 MG(HG)/M3 JAN
    1993. OEL-THAILAND:STEL 0.05 MG(HG)/M3 JAN 1993. OEL-UNITED
    KINGDOM: TWA 0.05 MG(HG)/ M3; STEL 0.15 MG(HG)/M3 JAN 1993. OEL IN
    BULGARIA, COLOMBIA, JORDAN, KOREA CHECK ACGIH TLV. OEL IN NEW
    ZEALAND, SINGAPORE, VIETNAM CHECK ACGIH TLV. NIOSH REL TO MERCURY,
    ARYL AND INORGANIC-AIR: CL 0.1  MG/M3 (SK) NIOSH DHHS #92-100,1992.
    EPA TSCA SECTION 8(B) CHEMICAL INVENTORY.

=====================  Regulatory Information  =====================

SARA Title III Information:THIS PRODUCT IS SUBJECT TO SARA SECTION 313
    REPORTING REQUIREMENTS.
Federal Regulatory Information:EUROPEAN INFORMATION: VERY TOXIC. R
    26/27/28 VERY TOXIC BY INHALATION, IN CONTACT WITH SKIN AND IF
    SWALLOWED. R 33 DANGER OF CUMULATIVE EFFECTS. S 13 KEEP AWAY FROM
    FOOD, DRINK AND ANIMAL FEEDINGSTUFF S. S 28 AFTER CONTACT WITH
    SKIN, WASH IMMEDIATELY WITH PLENTY OF WATER. S 36 WEAR SUITABLE
    PROTECTIVE CLOTHING. S 45 IN CASE OF ACCIDENT OR IF YOU FEEL
    UNWELL, SEEK MEDICAL ADVICE IMMEDIATELY (SHOW TH E LABEL WHERE
    POSSIBLE). REVIEWS, STANDARDS AND REGULATIONS: OEL=MAK. ACGIH
    TLV-TWA 0.1 MG(HG)/M3 (S KIN) DTLVS TLV/BEI,1997. MSHA
    STANDARD-AIR: TWA 0.05 MG(HG)/M3 DTLWS 3,22,1973. OEL-AUSTRALIA:
    TWA (ECOLOGICAL INFO)
State Regulatory Information:

=======================  Other Information  =======================

 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.

*** END OF RECORD ***