Product ID:MA3182
MSDS Date:06/23/1999
FSC:5960
NIIN:00-847-7997
Status Code:A
MSDS Number: CJGSN

Emergency Phone: 617-272-3000

Info Phone: 617-272-3000 (DAYTIME ONLY)

Preparer: DSCR-HMIS

Cage: 96341

Telephone: 617-272-3000 (DAYTIME ONLY)

Cage: 96341

COBALT-60

CAS: 10198-40-0

Routes of Entry: Inhalation:YES Skin:NO Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:INHALATION: CO60 DUST RESULTING FROM A
LEAKING ENCAPSULATED SOURCE REMAINS IN THE LUNGS. THE BIOLOGICAL
HALF LIVES IS 10 DAYS. INGESTION: CO60 DUST CAN ENTER THE BODY
ORALLY, THROUGH OPEN CUTS ETC. EY ES: EXPOSURE TO GAMMA/BETA
RADIATION MAYAFFECT SIGHT. SKIN: CAUSE REACTIONS AND IN THE
EXTREME, DEATH.
Effects of Overexposure:OVEREXPOSURE TO RADIATION FROM A SEALED SOURCE
REQUIRES MEDICAL ATTENTION FOR EXTERNAL RADIATION. SKIN: CAUSE
REACTIONS & IN THE EXTREME, DEATH. INHALATION: CO60 DUST RESULTING
FROM A LEAKING ENCAPSUL ATED SOURCE REMAINS IN THE LUNGS.
INGESTION: CO60 DUST CAN ENTER THE BODY ORALLY, THROUGH OPEN CUTS
ETC.

First Aid:INHALATION: LEAVE THE CONTAMINATION AREA & SEEK MEDICAL
ATTENTION FOR CO60 INTAKE. SKIN: (IFOR SKIN WITH ABRASIONS)
DECONTAMINATION OF WOUNDS SHOULD BE ACCOMPANIED UNDER THE
SUPERVISION OF A PHYSICIAN . IRRIGATE ANY WOUNDS PROFUSELY WITH
TEPID WATER, AND CLEAN WITH A SWAB. FOLLOW WITH SOAP AND WATER OR
DETERGENT AND WATER (AND GENTLE SCRUBBING WITH A SOFT BRUSH, IF
NEEDED). AVOID THE USE OF HIGHLY ALKALINE SOAPS OR ORGANIC
SOLVENTS.

Spill Release Procedures:DON'T TOUCH SPILLED MATERIAL (OR SOURCES) OR
DAMAGE CONTAINER. ISOLATE SPILL AREA. DON'T ENTER SPILL AREA UNLESS
IT IS ABSOLUTELY NECESSARY TO SAVE LIVES. LIMIT ENTRY TO THE
SHORTEST TIME.

Handling and Storage Precautions:SOURCES MUST BE PROPERLY LABELED AND
AREA SIGNS POSTED. THE RADIATION PROTECTION OFFICER MUST BE KEPT
INFORMED OF ANY TRANSFER OF A SOURCE TO NEW STORAGE OR USE AREAS.
DURING STORAGE THERE MUST BE NO POSSIBILITY OF A CHEMICAL REACTION
THATMIGHT CAUSE AN EXPLOSION.
Other Precautions:RADIOACTIVE WASTE MAY BE STORED ONLY IN RESTRICTED
AREAS. LIQUID WASTE SHOULD BE STORED IN SHATTERPROOF CONTAINERS,
SUCH AS POLYETHYLENE BOTTLES. IF CIRCUMSTANCES MAKE THIS
IMPOSSIBLE, AN OTER CONTAIN ER OF SHATTERPROOF MATERIAL MUST BE
USED.

Respiratory Protection:CO60 SOURCES ARE NORMALLY SEALED & THE MAIN
HAZARD IS PENETRATING GAMMA RADIATION WHICH REQUIRES SUBSTANTIAL
SHIELDING.
Protective Gloves:SUITABLE GLOVES MUST BE WORN WHENEVER HAND
CONTAMINATION IS LIKELY.
Other Protective Equipment:IN ADDITION TO GLOVES, OTHER PROTECTIVE
CLOTHING, SUCH AS COVERALLS, LABORATORY COATS, AND SHOES, SHOULD BE
WORN WHEVER CONTAMINATION OF CLOTHING WITH RADIOACTIVE MATERIALS IS
POSSIBLE.
Work Hygienic Practices:PERSONNEL WORKING IN AREAS CONTAINING UNSEALED
SOURCES OF RADIOACTIVITY MUST "WASH UP" BEFORE EATING, SMOKING OR
LEAVING WORK AND MUST USE AN APPROPIATE DETECTION INSTRUMENT TO
MONITOR HANDS, CLOTHING.
Supplemental Safety and Health
EXTRA CARE SHOULD BE EXERCISED TO PREVENT CONTAMINATION OF SKIN AREAS
WHERE THERE IS A BREAK IN THE SKIN.

HCC:A2
Boiling Pt:=2870.C, 5198.F
Melt/Freeze Pt:=1495.C, ######F
Spec Gravity:8.9
Solubility in Water:INSOLUBLE
Appearance and Odor:A SEALED SOURCE.

Stability Indicator/Materials to Avoid:YES

Waste Disposal Methods:SHORT-LIVED RADIONUCLIDES ARE OFTEN
STORED/ALLOWED TO DECAY UNTIL IT CAN BE DISPOSED OF AS
NONRADIOACTIVE WASTE. THE NRC REQUIRES A MINIMUM DECAY TIME OF 10
HALF-LIVES. THIS PERIOD REDUCES THE ACTIVIT Y TO LESS THAN 0.1% OF
THE ORIGINAL VALUE. DISPOSE OF I/A/W FEDERAL, STATE & LOCAL LAWS.

Transport Information:EXCEPTED PACKAGES MUST BE CERTIFIED INCLUDING
CONSIGNOR/CONSIGNEE NAME AND A STATEMENT SUCH AS: THIS PACKAGE
CONFORMS TO CONDITIONS & LIMITATIONS SPECIFIED IN 49 CFR 173.421
FOR RADIOACTIVE MATERIAL, EXCEPTED PACKAGE-LIMITED QUANTITY OF
MATERIAL, UN2910.

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.