Chemical Products Corporation

As of 1996, Solvay Barium Strontium GmbH was the world s largest producer of strontium carbonate at its combined barium—strontium plant at Bad Hunningen (Germany). Cia Minera La Valencia (Mexico) was the next largest producer, followed by Chemical Products Corporation of the United States, which has two plants, one in the United States and one in Mexico. Dachan Specialty Chemicals (South Korea) was another principal producer. Together these four companies accounted for almost 80% of world capacity. 

Chemical Manufacturers Association (CMA), See American Chemistry Council (ACC), 270 Chemical Products Corporation, 223 Chemical Services Ltd., 198-199 Chemical Society of Japan, 261 Chemical Society of Peni (SQP), 263... 

In 1988, 6 million pounds of di-octylphthalates (i.e., di-n-octylphthalate and di[2-ethylhexyl]phthalate) were imported and 37 million pounds were exported. No data were located on specific quantities for di- -octylphthalate (Mannsville Chemical Products Corporation 1989). 

Flexible PVC resins and other dioctylphthalate-containing plastics and resins are used in a variety of industrial and domestic products plastisols for carpetback coating (EPA 1987b), film, wire, cables, and adhesives (HSDB 1995). Additional end-use products are automobile and furniture upholstery, wall coverings, window shades, garden hoses, shower curtains, tablecloths, rainwear, shoes, dolls, and toys (Mannsville Chemical Products Corporation 1989). 

Production, Import/Export, Use, Release, and Disposal. Because of the general confusion in the literature about the nomenclature for octylphthalate esters, historical information about the production and import/export of di- -octylphthalate is not readily available. These values generally must be estimated as a percentage of di(2-ethylhexyl)phthalate production or import/export. The compound is used principally as a plasticizer additive to plastics and PVC resins. It is also used as a dye carrier in plastics production and as a chemical intermediate (EPA 1993a HSDB 1995 Mannsville Chemical Products Corporation 1989 Sittig 1991). Limited information is available about releases of di-n-octylphthalate to environmental media. Even the TRI data, which comprise the most current information available, contain errors as a result of the nomenclature confusion (EPA 1993a Vista Chemical 1992). Data are available about the disposal and regulatory status of the compound (see Chapters 4 and 7). More information on the production and releases of di-ft-octylphthalate is needed to estimate potential exposure to the compound. 

Mannsville Chemical Products Corporation. 1989. Dioctyl phthalate. Chemical products synopsis, Mannsville Chemical Products Corporation, Asbury Park, NJ. 

Four companies operating five facilities appear to be the primary U.S. producers of DEHP. These are Aristech Chemical Company in Neville Island, Pennsylvania Hatco Chemical Company in Fords, New Jersey Teknor Apex Company in Brownsville, Tennessee and Hebronville, Massachusetts and Tennessee Eastman Company in Kingsport, Tennessee (Mannsville Chemical Products Corporation 1999). SRI (1998a), however, lists only Tennessee Eastman and Aristech Chemical Company, as above, but also adds Velsicol Chemical Corporation in Chestertown, Maryland, which was not included in the above list. 

According to Mannsville Chemical Products Corporation (1999), production of DEHP is expected to grow at a rate less than the gross domestic product over the next few years due to limited growth in polyvinyl chicride (PYC) markets -which have been the primary consumers of DEHP. In addition,... 

Import quantities of dioctyl phthalates were about 4 million pounds in 1998. No data were located regarding past import volumes of DEHP or the di octyl phthalates. Exports of dioctyl phthalates have been about 14 27 million pounds per year from 1994 to 1998 (Mannsville Chemical Products Corporation 1999). Import/export statistics specific for DEHP were not located. 

Numerous nonplasticizer uses of DEHP have been reported. However, it is not clear to what extent these uses arc, or have ever been, important. These include 1he use of DEHP as a solvent in erasable ink, as an acaracide in orchards, as an inert ingredient in pesticide products, in cosmetics, in vacuum pump oil, as a component of dielectric fluids in electrical capacitors, to detect leaks in respirators, and for use in testing of air filtration systems (HSDB 1990 Mannsville Chemical Products Corporation 1990 NTP 1989). 

Because of concerns regarding health effects from exposure to DEHP, many toy manufacturers have discontinued use of all phthalates in their products (Mannsville Chemical Products Corporation 1999 ... 

Wilkinson and Lamb 1999). The use of DEHP in domestically produced teethers and rattles has been discontinued (Consumer Product Safety Commission 1999d). DEHP is also no longer used as a plasticizer in plastic food wrap products (Mannsville Chemical Products Corporation 1999). In addition, some applications, like automobile upholstery, might switch from DEHP to linear phthalates because of their superior performance and low toxicity, which will put further downward pressure on DEHP use (Mannsville Chemical Products Corporation 1999). Finally, in the future, polyolefin metallocene plastomers might replace flexible applications for PVC altogether because they provide flexibility without the need for plasticizers. 

Production, Import/Export, Use, Release, and Disposal. Data on the production and uses of DEHP in the United States are available (ChemExpo 1999 HSDB 1990 Mannsvilb Chemical Products Corporation 1999 TRI99 2001). Production has been fairly constant over the past 5 years and is expected to remain so during the next few years due to limited growth in PVC markets. Disposal of DEHP is mainly to landfills and the recently promulgated land disposal restrictions should ensure reduction of the disposal of untreated DEHP wastes. Available information appears to be sufficient for assessing the potential for release of, and exposure to, DEHP. 

While information on uses is available (Mannsville Chemical Products Corporation 1999), specific information on uses in certain potentially high exposure applications is either changing or lacking. Specifically, information on the use of DEHP in food contact applications such as coatings used in cans, bottle caps, and films would allow a better estimation of potential exposures from food. Currently, the only information available is that these applications are allowed by FDA rules, but it is unclear if DEHP is used. 

Material Safety Data Sheet No. 42, www.chemicalproductscorp.com. Chemical Products Corporation, Cartersville, GA (2001). 

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