Printech Archive
Re: 2,2,4 trimethylpentane (Isopar C) - usage and health & safety information

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From: Robert Gifford (
Date: Fri Aug 27 1999 - 11:45:04 CDT

 ---------Forwarded Message-----------

 This compound was used ( and possibly still is to a limited extent
 it has generally been replaced by toluene) in some liquid ink systems.
 of my sources believe that it is or ever was used in paste ink
systems. If
 you require a more definitive response please let me know.
 George Fuchs
 National Association of Printing Ink Manufacturers

> -----Original Message-----
> To: <>;
> <>
> Date: Tuesday, August 24, 1999 8:00 PM
> Subject: 2,2,4 trimethylpentane (Isopar C) - usage and health &
> safetyinformation
> >Greetings
> >
> > I am researching usage and health & saftey information on thirty
> chemicals (HAPs). 2,2,4 trimethylpentane (aka iso-octane and a key
> component in Isopar C) is one of those chemicals. This information will be
> placed on IDEM's ToxWatch page which will include air monitoring data from
> eighty-seven chemicals (thirty HAPs are a subset of this list) in four
> Indiana counties.
> >
> > From my research into Exxon products, Isopar C is used in lithographic
> inks and possibly as a cleaning agent. What is the current usage of this
> chemical? How wide spread is the use of this chemical? What are effective
> substitutes (if any)? Please relate any other experiences you might have
> had with using this material.
> >
> > Additionally, it is my understanding that Isopar C/2,2,4
> trimethylpentane might be found in pesticide formulations. Is this true?
> If yes, what formulations? Who would manufacture the pesticide formulation
> so I could obtain more information on proper usage?
> >
> > Some of the other Isopar formulations are used in every day consumer
> products (deodorizers, cleaning agents, etc.). Does anyone know of the use
> of Isopar C/2,2,4 trimethylpentane in any consumer product? I would doubt
> it, but I want to check anyway. It would be quite ironic to monitor a HAP
> from an industrial source where a HAP may be emitted in greater
> concentration in someone's home.
> >
> > I thank you for your assistance in this effort!
> >
> >Mark C. Stoddard
> >Indiana Department of Environmental Management
> >Compliance & Technical Assistance Program
> >
> >
> >
> >


--************************************************************ * Robert Gifford * Solid and Hazardous Waste Education Center (SHWEC), and * Printers' National Environmental Assistance Center (PNEAC) * 610 Langdon Street rm 531 * Madison, WI 53703 * (608)262-1083 Voice (608)262-6250 Fax * --***********************************************************

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