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

MSDS NAME:DIPHENYLDIAZENE, O-383
NIIN:00N066310
MSDS Number: CBDNH
=== Responsible Party ===
Company:CHEM SERVICE INC
Box:3108
City:WEST CHESTER
State:PA
ZIP:19381
Country:US
Info Phone Num:215-692-3026
Emergency Phone Num:215-692-3026
CAGE:84898
=== Contractor Identification ===
Company:CHEM SERVICE INC
Box:3108
City:WEST CHESTER
State:PA
ZIP:19381
Country:US
Phone:215-692-3026
CAGE:84898
Company:CHEM SERVICE, INC
Address:660 TOWER LN
Box:599
City:WEST CHESTER
State:PA
ZIP:19301-9650
Country:US
Phone:610-692-3026
CAGE:8Y898

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

Name:AZOBENZENE; (DIPHENYLDIAZENE)
CAS:103-33-3
RTECS #:CN1400000
OSHA PEL:N/K 
ACGIH TLV:N/K 

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

LD50 LC50 Mixture:LD50: (ORAL, RAT) 1000 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:CONTACT LENSES SHOULD NOT BE WORN IN
    LABORATORY. ALL CHEMICALS SHOULD BE CONSIDERED HAZARDOUS. AVOID
    DIRECT PHYSICAL CONTACT! CAN BE HARMFUL IF SWALLOWED. CAN BE
    HARMFUL IF INHALED. CAN BE HARMFUL IF  ABSORBED THROUGH THE SKIN.
    DUST AND/OR VAPORS CAN CAUSE IRRITATION TO RESPIRATORY TRACT.
    EXTREMELY (EFTS OF OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT
Effects of Overexposure:HLTH HAZ: DESTRUCTIVE OF MUCOUS MEMBRANES
    AND/OR UPPER RESPIRATORY TRACT. SUSPECTED CARCINOGEN - MAY PRODUCE
    CANCER (MFR).
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

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

First Aid:INGEST: ANTIDOTE IS SUBSTANCE INTENDED TO COUNTERACT EFT OF
    POIS. IT SHOULD BE ADMIN ONLY BY MD OR TRAINED EMER PERS. MED
    ADVICE CAN BE OBTAINED FROM POIS CTL CTR. EYES: FLUSH CONTINUOUSLY
    W/WATER FOR  AT LEAST 15-20 MIN. SKIN: FLUSH W/WATER FOR 15-20 MIN.
    IF NO BURNS HAVE OCCURRED, USE SOAP & WATER TO CLEANSE SKIN. INHAL:
    REMOVE TO FRESH AIR. ADMIN OXYGEN IF HAVING DFCLTY BRTHG. IF BRTHG
    (SUPDAT)

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

Extinguishing Media:CARBON DIOXIDE, DRY CHEMICAL POWDER OR WATER SPRAY.
Fire Fighting Procedures:USE NIOSH/MSHA APPROVED SCBA AND FULL
    PROTECTIVE EQUIPMENT .
Unusual Fire/Explosion Hazard:NONE SPECIFIED BY MANUFACTURER.

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

Spill Release Procedures:EVACUATE AREA. WEAR APPROPRIATE OSHA-REGULATED
    EQUIPMENT. VENTILATE AREA. SWEEP UP AND PLACE IN AN APPROPRIATE
    CONTAINER. HOLD FOR DISPOSAL. WASH CONTAMINATED SURFACES TO REMOVE
    ANY RESIDUES.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

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

Handling and Storage Precautions:AVOID CONTACT WITH SKIN, EYES AND
    CLOTHING. KEEP TIGHTLY CLOSED AND STORE IN A COOL, DRY PLACE. STORE
    ONLY WITH COMPATIBLE CHEMICALS.
Other Precautions:PERSONS NOT SPECIFICALLY & PROPERLY TRAINED SHOULD
    NOT HANDLE THIS CHEM/ITS CNTNR. PROD IS FURNISHED FOR LAB USE ONLY!
    PRODS MAY NOT BE USED AS DRUGS, COSMETICS, AGRICULTURAL OR
    PESTICIDAL PRODS, FOOD  ADDITIVES OR AS HOUSEHOLD CHEMS.

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

Respiratory Protection:USE NIOSH/MSHA APPROVED RESPIRATOR APPROPRIATE
    FOR EXPOSURE OF CONCERN .
Ventilation:THIS CHEMICAL SHOULD BE HANDLED ONLY IN A HOOD.
Protective Gloves:IMPERVIOUS GLOVES .
Eye Protection:ANSI APPRVD CHEM WORKERS GOGGLES .
Other Protective Equipment:ANSI APPROVED EYE WASH & DELUGE SHOWER . USE
    APPROPRIATE OSHA/MSMA APPROVED SAFETY EQUIPMENT.
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
FIRST AID PROC: HAS STOPPED ADMIN ARTF RESP. IF IN CARDIAC ARREST ADMIN
    CPR. CONTINUE LIFE SUPPORTING MEASURES UNTIL MEDICAL ASSISTANCE HAS
    ARRIVED. GET MEDICAL ATTENTION IF NECESSARY.

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

Boiling Pt:B.P. Text:559F,293C
Melt/Freeze Pt:M.P/F.P Text:>154F,>68C
Spec Gravity:1.090
Solubility in Water:INSOL (IMMISICIBLE)
Appearance and Odor:ORANGE-RED CRYSTALLINE SOLID.

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

Stability Indicator/Materials to Avoid:YES
INCOMPATIBLE WITH STRONG OXIDIZING AGENTS.
Stability Condition to Avoid:NONE SPECIFIED BY MANUFACTURER.
Hazardous Decomposition Products:DECOMPOSITION LIBERATES TOXIC FUMES.

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

Waste Disposal Methods:DISPOSAL MUST BE IN ACCORDANCE WITH FEDERAL,
    STATE AND LOCAL REGULATIONS . BURN IN A CHEMICAL INCINERATOR
    EQUIPPED WITH AN AFTERBURNER AND SCRUBBER.

 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 ***