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Assessment of Phthalic Anhydride as a Potential Air Pollution Problem. Volume XIV.

PB258366

Publication Date	1976
Personal Author	Patterson, R. M.; Bornstein, M. I.; Garshick, E.
Page Count	26
Abstract	Phthalic anhydride is a white, crystalline solid with a characteristic choking odor. It is produced by the oxidation of either naphthalene or ortho-xylene, and it is a key industrial intermediate in the manufacture of resins, polyesters, dyes, and plasticizers. The major acute toxic effect of exposure to phthalic anhydride dust or vapor is its irritating action on the skin, eyes, and mucous membranes. The primary end use is the manufacture of plasticizers, with polyester resin production second. The major emission sources in descending order are product storage, manufacturing, end product manufacturing, and product handling. Scrubbers and incinerators are currently being used by industry to control phthalic anhydride emissions with efficiencies of 86 and 99 percent, respectively. Currently used practices to control the continuous gaseous effluent are the use of knock-out pots for removal of solid phthalic anhydride and the venting of storage tanks to the main process vent gas incinerator. Based on the results of the health effects research presented in this report, and the ambient concentration estimates, phthalic anhydride as an air pollutant apparently does not pose a threat to the health of the general population. In addition, phthalic anhydride does not appear to pose other environmental insults which would warrant further investigation or restriction of its use at the present time.
Keywords	Phthalic anhydride Air pollution Chemical properties Physical properties Public health Industrial wastes Chemical industry Combustion products Assessments Air pollution control Toxicity Concentration(Composition) Sources Humans Plants(Botany) Animals Scrubbers Resins Polyesters Dyes Plasticizers Incinerators Air pollution effects(Humans) Air pollution effects(Animals) Air pollution effects(Plants) Air pollution effects(Materials)
Source Agency	Office of Air and Waste Management
NTIS Subject Category	68A - Air Pollution & Control 99B - Industrial Chemistry & Chemical Process Engineering 57Y - Toxicology
Corporate Authors	Gca Corp., Bedford, Mass. Gca Technology Div.; Environmental Protection Agency, Research Triangle Park, N.C.
Document Type	Technical Report
Title Note	Final rept.
NTIS Issue Number	197625
Contract Number	EPA-68-02-1337

Assessment of Phthalic Anhydride as a Potential Air Pollution Problem. Volume XIV.

Assessment of Phthalic Anhydride as a Potential Air Pollution Problem. Volume XIV.
PB258366

Publication Date	1976
Personal Author	Patterson, R. M.; Bornstein, M. I.; Garshick, E.
Page Count	26
Abstract	Phthalic anhydride is a white, crystalline solid with a characteristic choking odor. It is produced by the oxidation of either naphthalene or ortho-xylene, and it is a key industrial intermediate in the manufacture of resins, polyesters, dyes, and plasticizers. The major acute toxic effect of exposure to phthalic anhydride dust or vapor is its irritating action on the skin, eyes, and mucous membranes. The primary end use is the manufacture of plasticizers, with polyester resin production second. The major emission sources in descending order are product storage, manufacturing, end product manufacturing, and product handling. Scrubbers and incinerators are currently being used by industry to control phthalic anhydride emissions with efficiencies of 86 and 99 percent, respectively. Currently used practices to control the continuous gaseous effluent are the use of knock-out pots for removal of solid phthalic anhydride and the venting of storage tanks to the main process vent gas incinerator. Based on the results of the health effects research presented in this report, and the ambient concentration estimates, phthalic anhydride as an air pollutant apparently does not pose a threat to the health of the general population. In addition, phthalic anhydride does not appear to pose other environmental insults which would warrant further investigation or restriction of its use at the present time.
Keywords	Phthalic anhydride Air pollution Chemical properties Physical properties Public health Industrial wastes Chemical industry Combustion products Assessments Air pollution control Toxicity Concentration(Composition) Sources Humans Plants(Botany) Animals Scrubbers Resins Polyesters Dyes Plasticizers Incinerators Air pollution effects(Humans) Air pollution effects(Animals) Air pollution effects(Plants) Air pollution effects(Materials)
Source Agency	Office of Air and Waste Management
NTIS Subject Category	68A - Air Pollution & Control 99B - Industrial Chemistry & Chemical Process Engineering 57Y - Toxicology
Corporate Authors	Gca Corp., Bedford, Mass. Gca Technology Div.; Environmental Protection Agency, Research Triangle Park, N.C.
Document Type	Technical Report
Title Note	Final rept.
NTIS Issue Number	197625
Contract Number	EPA-68-02-1337