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

MSDS NAME:WRDA-19 CALCIUM NAPHTHALENESULFONATE(SUPDAT
NIIN:00N011794
MSDS Number: BJHYB
=== Responsible Party ===
Company:W.R. GRACE & CO
Address:62 WHITTEMORE AVE
City:CAMBRIDGE
State:MA
ZIP:02140-1623
Country:US
Info Phone Num:617-876-1400
Emergency Phone Num:617-876-1400,X-3140 OR 3897
CAGE:DO746
=== Contractor Identification ===
Company:GRACE W R AND CO DEWEY AND ALMY CHEMICAL DIV
Address:62 WHITTEMORE AVE
Box:City:CAMBRIDGE
State:MA
ZIP:02140-1623
Country:US
Phone:617-876-1400
CAGE:17486
Company:W.R. GRACE & CO
Address:PO BOX 2117
City:BALTIMORE
State:MD
ZIP:21202-1630
Phone:301-874-2009:301-659-9058
CAGE:DO746

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

Name:FORMALDEHYDE  (SARA III)
CAS:50-00-0
RTECS #:LP8925000
Fraction by Wt: <0.1%
Other REC Limits:0.8 PPM C (NIOSH)
OSHA PEL:SEE 1910.1048
ACGIH TLV:C 0.3 PPM; A2; 9293
EPA Rpt Qty:100 LBS
DOT Rpt Qty:100 LBS

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

LD50 LC50 Mixture:LD50:ORAL 3800 MG/KG RAT (SOLN)
Routes of Entry: Inhalation:YES  Skin:NO  Ingestion:NO
Reports of Carcinogenicity:NTP:YES    IARC:YES	  OSHA:YES
Health Hazards Acute and Chronic:INHAL:EXPOS BY INHAL NOT EXPECTED TO
    OCCUR UNLESS SPECIFIC USE GENERATES LOCALIZED MISTS.IF INHALED AS A
    MIST,MAY CAUSE SLIGHT IRRIT TO THE UPPER RESP TRACT.SKIN&EYE:CONT
    W/ALKALINE SOLUTION MAY CAUSE  EYE BURNS&SKIN IRRIT.INGEST:ALKALINE
    SOLN MAY CAUSE BURNS TO THE GI TRACT IF SWALLOWED.SYSTEMIC TOXICITY
    IS LOW.
Explanation of Carcinogenicity:CLASS 2A, (IARC), CLASS 2 (NTP).
Effects of Overexposure:SEE ABOVE
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

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

First Aid:IF INHALED&IRRIT SYMPTOMS DEVELOP,MOVE TO FRESH AIR.IF
    SYMPTOMS PERSIST,CALL MD.EYES:FLUSH W/PLENTY H*2O FOR AT LEAST 15
    MIN.SEE MD.SKIN:FLUSH W/H*2O IMMED.CALL MD IF SKIN SHOWS SIGNS OF
    IRRIT.WASH CL THING BEFORE RE-USE.IF SWALLOWED, GIVE LGE AMTS OF
    H*2O/MILK TO DRING.DO NOT INDUCE VOMIT.CALL MD IMMED.NEVER GIVE
    ANYTHING BY WAY OF MOUTH TO AN UNCON PERSON.

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

Flash Point:>200F,>93C
Extinguishing Media:PRODUCT IS AN AQUEOUS SOLUTION AND IS UNLIKELY TO
    BURN UNTIL ALL WATER IS EVAPORATED.
Fire Fighting Procedures:WEAR NIOSH/MSHA APPROVED SCBA AND FULL
    PROTECTIVE EQUIPMENT .
Unusual Fire/Explosion Hazard:NONE KNOWN

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

Spill Release Procedures:PVNT PROD FROM ENTERING DRINKING H*2O SUPPLIES
    OR STREAMS. OBSERVING PREC ABOVE,COLLECT LIQ OR SOLIDIFY LIQ W/AN
    INERT, NONCOMBUSTIBLE MATL AND REMOVE FOR DISPOSAL.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

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

Handling and Storage Precautions:KEEP CONTAINER CLOSED. USE WITH
    ADEQUATE VENTILATION. AVOID BREATHING MIST. DO NOT GET IN EYES, ON
    SKIN OR ON CLOTHING.
Other Precautions:NONE SPECIFIED BY MANUFACTURER.

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

Respiratory Protection:NIOSH/MSHA APPROVED RESPIRATOR APPROPRIATE FOR
    EXPOSURE OF CONCERN .
Ventilation:MECHANICAL
Protective Gloves:IMPERVIOUS GLOVES 
Eye Protection:CHEMICAL WORKERS GOGGLES 
Other Protective Equipment:WEAR APPROPRIATE CLOTHING TO PREVENT SKIN
    CONTACT.
Work Hygienic Practices:WASH THOROUGHLY BEFORE EATING, SMOKING OR USING
    SANITARY FACILITIES .
Supplemental Safety and Health
PART NO: FORMALDEHYDE

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

Boiling Pt:B.P. Text:>212F,>100C
Vapor Pres:20 (MM-HG)
Spec Gravity:-1.2
pH:7.5-11
Evaporation Rate & Reference:BUTYL ACETATE=1 (H*2O)
Solubility in Water:COMPLETE
Appearance and Odor:DARK BROWN LIQUID W/SLIGHT MOTH-BALL NAPHTHALENE
    ODOR.
Percent Volatiles by Volume:60

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

Stability Indicator/Materials to Avoid:YES
NONE KNOWN
Stability Condition to Avoid:NONE KNOWN
Hazardous Decomposition Products:IF PRODUCT IS DRIED AND BURNED, OXIDES
    OF CARBON AND SULFUR MAY EVOLVE.

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

Waste Disposal Methods:NOT A HAZARDOUS WASTE BY EPA DEFINITION.
    SOLIDIFICATION MUST BE ACCOMPLISHED PRIOR TO DISPOSAL IN A
    LANDFILL. DISPOSE OF ALL WASTE I/A/W LOCAL, STATE AND FEDERAL
    GOVERNMENT 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.

*** END OF RECORD ***