HACH CO -- SYM-DIPHENYLCARBAZONE  -- 6810-00N034340
<pre>=====================  Product Identification  =====================

Product ID:SYM-DIPHENYLCARBAZONE
MSDS Date:06/17/1991
FSC:6810
NIIN:00N034340
=== Responsible Party ===
Company Name:HACH CO
Box:907
City:AMES
State:IA
ZIP:50010
Country:US
Info Phone Num:800-227-4224
Emergency Phone Num:303-625-5716
CAGE:4T252
=== Contractor Identification ===
Company Name:HACH COMPANY
Address:100 DAYTON RD.
Box:907
City:AMES
State:IA
ZIP:50010
Country:US
Phone:800-227-4224
CAGE:4T252

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

Ingred Name:FORMIC ACID, (PHENYLAZO)-,2-PHENYLHYDRAZINE;
    (PHENYLAZO)FORMIC ACID 2-PHENYLHDRAZIDE
CAS:538-62-5
RTECS #:LQ9420000
Fraction by Wt: <60%

Ingred Name:CARBOHYDRAZINE, 1,5-DIPHENYL-; (1,3-DIPHENYLCARBOHYDRAZIDE)
CAS:140-22-7
RTECS #:FF2750000
Fraction by Wt: <60%

=====================  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:THIS PRODUCT MAY BE IRRITATING TO
    EYES, SKIN & RESPIRATORY TRACT. ACUTE/CHRONIC: NOT DETERMINED.
    OVEREXPOSURE MAY CAUSE EYE, SKIN AND RESPIRATORY TRACT IRRITATION.
Explanation of Carcinogenicity:NOT RELEVANT
Effects of Overexposure:SEE HEALTH HAZARDS.
Medical Cond Aggravated by Exposure:NONE REPORTED.

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

First Aid:EYES: IMMED FLUSH WITH WATER FOR AT LEAST 15 MINUTES. CALL
    PHYSICIAN. SKIN: FLUSH WITH PLENTY OF WATER. INGEST: GIVE LARGE QTY
    OF WATER. CALL PHYSICIAN IMMEDIATELY. INHAL: REMOVE TO FRESH AIR.

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

Extinguishing Media:WATER, CO*2, OR DRY CHEMICAL.
Fire Fighting Procedures:WEAR NIOSH/MSHA APPROVED SCBA AND FULL
    PROTECTIVE EQUIPMENT .
Unusual Fire/Explosion Hazard:NOT DETERMINED.

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

Spill Release Procedures:DILUTE LIQ W/EXCESS H*2O. IF IT IS A SOLID,
    DISSOLVE IN WATER MAKING NO MORE THAN 3% SOLN. ADD 20% AQUEOUS SOLN
    OF SODIUM NITRITE UNTIL THERE IS 40X EXCESS NITRITE. SLOWLY ADD 20%
    SULFURIC MOLD UNTIL  SOLN IS ACIDIC TO LITMUS. WHEN (SUPP DATA)
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

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

Handling and Storage Precautions:STORE TIGHTLY CLOSED IN A COOL, DRY
    PLACE.
Other Precautions:NONE SPECIFIED BY MANUFACTURER.

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

Respiratory Protection:USE NIOSH/MSHA APPROVED RESPIRATOR APPROPRIATE
    FOR EXPOSURE OF CONCERN .
Ventilation:ADEQUATE VENTILATION.
Protective Gloves:DISPOSABLE GLOVES.
Eye Protection:CHEMICAL WORKERS GOGGLES .
Other Protective Equipment:EMERGENCY EYEWASH & DELUGE SHOWER .
Work Hygienic Practices:WASH THOROUGHLY AFTER HANDLING.
Supplemental Safety and Health
PH: 2(5% SOLUTION). SPILL PROC: NITROGEN OXIDE EVOLUTION CEASES & SOLN
    TURNS STARCH-IODIDE PAPER BLUE, THE ACID DEGRADATION IS COMPLETE.
    FLUSH THIS SOLUTION DOWN DRAIN WITH EXCESS WATER.

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

HCC:C1
Melt/Freeze Pt:M.P/F.P Text:309F,154C
Spec Gravity:1.788
pH:SUPDAT
Solubility in Water:INSOLUBLE
Appearance and Odor:YELLOWISH BROWN POWDER, NO ODOR.

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

Stability Indicator/Materials to Avoid:YES
NONE SPECIFIED BY MANUFACTURER.
Stability Condition to Avoid:EXTREME HEAT OR FLAMES, EXCESS MOISTURE.
Hazardous Decomposition Products:NOT DETERMINED.

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

Waste Disposal Methods:DISPOSE OF IN ACCORDANCE WITH ALL FEDERAL,
    STATE, AND LOCAL 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.