NO. 7-9580000


This first version of Corexit (9580) was an Exxon Product with MSDS by EXXON dated 8-1-89

and that Corexit 9580 is hazardous as defined in 29 CFR1910.1200


quoting from MSDS under Section 6 NOTES:

"Corexit may contain trace amounts of ethylene oxide * (CAS No. 75-21-8 ETHYLENE OXIDE NJ Hazardous Substance Fact Sheet-pdf format), a condition which creates the potential for accumulation of ethylene oxide in the head space of shipping and storage containers and in enclosed areas where the product is being handled or used.  Ethylene oxide is considered by OSHA, IARC, and NTP as a potential carcinogen * for humans.  Ethylene oxide may also present reproductive, mutagenic, genotoxic, neurologic and sensitization hazards in humans.  If this product is handled with adequate ventilation, the presence of these trace amounts is

not expected to result in any short or long term hazards." *

___________________________________________________Ethylene Oxide is very hazardous  *

Safety and Health Topics:
December 23, 2002
Ethylene Oxide  Known in 1984 & before:

"Both human and animal studies suggest that EtO is a potential occupational carcinogen, 

causing leukemia and other cancers. EtO has also been linked to reproductive damage, 

including spontaneous abortions; cytogenetic damage; neurological effects 

ranging from nausea and dizziness to peripheral paralysis; and tissue irritation."


"dispersants like Corexit 9527 * (another Exxon formulation) are much less toxic than the dispersants used in the 1960s," Wells said, "but even these new dispersants have adverse effects on biological processes." quoted by ADN 8-15-89 



More information on Corexit and other solvents *

Corexit judged ineffective  *  (8-15-89)

Maybe Dispersants Should not be Used at ALL?  *

"A researcher * was also amazed bacteria had not broken down the oil."   *.