VELSICOL 104®, heptachlor

In 1988, EPA prohibited the sale, distribution, and shipment of existing stocks of all canceled chlordane and heptachlor products. Subsequently, virtually all uses of heptachlor products were voluntarily canceled by the registrant, Velsicol Chemical Corporation (EPA 1990b). The only commercial use of heptachlor products still permitted is fire ant control in power transformers. Use of existing stocks of heptachlor-containing termiticide products in the possession of homeowners is also permitted (EPA 1990b). 

Data concerning occupational exposure levels of heptachlor are very limited. An industrial hygiene survey conducted in 1977 at the Velsicol Chemical Corporation, Memphis, Tennessee, a plant that manufactured heptachlor, detected heptachlor in workplace air at levels ranging from 0.025 to 0.202 mg/m (1.64-13.2 ppb) (Netzel 1981). Data from the National Occupational Exposure Survey (NOES) conducted by NIOSH from 1981 to 1983 were not available for heptachlor or heptachlor epoxide. 

Synonyms AI3-25584 EINECS 213-831-0 ENT 25584 Epoxy heptachlor HCE HE (3-Heptachlor epoxide Heptachloro epoxide l,4,5,6,7,8,8-Heptachloro-2,3-epoxy-2,3,3a,4JJa-hexahydro-4,7-methanoindene l,2,3,4,5,6,7,8,8-Heptachloro-2,3-epoxy-3a,4,7,7a-tetrahydro-4,7-methanoindene 5a,6,6a-Hexahydro-2,5-methano-2/f-indeno[l,2-A]oxirene 2,3,4,5,6,7,7 Hep tachloro-la,lb,5,5a,6,6a-hexahydro-2,5-methano-2//-oxireno[a]indene UN 2761 Velsicol 53-CS-17. 

INDENE l,4,5,6,7,8,8-HEPTACHLOR-3a,4,7,7,7a-TETRAHYDRO-4,7-endo-METILANO-INDEN (GERALAN) HEPTAGRAN HEPTAMUL NCI-C00180 RCR.A WASTE NUMBER P059 RHODIACHLOR VELSICOL 104... 

Chlordane is a man-made chemical that was used as a pesticide in the United States from 1948 to 1988. It is sometimes referred to by the trade names Octachlor and Velsicol 1068. It is a thick liquid whose color ranges from colorless to amber, depending on its purity. It may have no smell or a mild, irritating smell. We do not know what it tastes like. Chlordane is not a single chemical, but is a mixture of many related chemicals, of which about 10 are major components. Some of the major components are trans-chlordane, cis-chlordane, b-chlordene, heptachlor, and trans-nonachlor. Chlordane does not dissolve in water. Therefore, before it can be used as a spray, it must be placed in water with emulsifiers (soap-like substances), which results in a milky- looking mixture. 

EPA. 1978. OPP-68004 FRL 871-3. Consolidated heptachlor/chlordane cancellation proceedings, Velsicol Chemical Co., et al. Fed Regist 43 12372-12379. 

Heptachlor — (i) Chemical Designations — Synonyms E 3314 l,4,5,6,7,8,8a-Heptachlorodicyclopenta-diene 1,4,5,6,7,8,8a-Heptachloro-3a,4,7,7a-tetrahydro-4,7-methanoindene Velsicol Chemical Formula CioHjCl7 (ii) Observable Characteristics — Physical State (as shipped) Solid Color White light tan Odor ... 

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