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Registry of Toxic Effects of Chemical Substances (RTECS)

Naphthalene, hexachloro-

RTECS #

QJ7350000

CAS #

1335-87-1

Updated

December 2013

Molecular Weight

334.82

Molecular Formula

C10H2Cl6

Synonyms

Halowax 1014
Hexachlornaftalen (Czech)
Hexachloronaphthalene
Hexachloronaphthalene (ACGIH:OSHA)

Other Multiple Dose Data and References

Route/OrganismDoseEffectReference
oral/domestic animal lowest published toxic dose: 25600 µg/kg/10D- intermittentEye: Lacrimation

Behavioral: Somnolence (general depressed activity)

Skin: After systemic exposure: Dermatitis, other		VEMEAR 48,135,1953
oral/rat lowest published toxic dose: 13500 mg/kg/90D- continuousLiver: Other changes

Liver: Changes in liver weight

Kidney, Ureter, and Bladder: Changes in kidney weight		VCVGK* -,78,1994
oral/rat lowest published toxic dose: 7 mg/kg/7D- intermittentBehavioral: Alteration of classical conditioning

Nutritional and Gross Metabolic: Weight loss or decreased weight gain		NRTXDN 33,361,2012
oral/rat lowest published toxic dose: 8.4 mg/kg/28D- intermittentBehavioral: Alteration of classical conditioningNRTXDN 33,361,2012

Reviews

OrganizationStandardReference
American Conference of Governmental Industrial Hygienists (ACGIH)Threshold Limit Value-time-weighted average 0.2 mg/m3 (skin)DTLVS* TLV/BEI,2013
TOXICOLOGY REVIEWAVSCB8 13,101,1969

Standards and Regulations

OrganizationStandardReference
Mine Safety and Health Administration (MSHA) STANDARD-airtime-weighted average 0.2 mg/m3 (skin)DTLVS* 3,125,1971
Occupational Exposure Limit IN ARGENTINA, BULGARIA, COLOMBIA, JORDAN check ACGIH TLV;
Occupational Exposure Limit IN SINGAPORE, VIETNAM check ACGIH TLV
Occupational Exposure Limit-ARAB Republic of Egypttime-weighted average 0.2 mg/m3, JAN1993
Occupational Exposure Limit-AUSTRALIAtime-weighted average 0.2 mg/m3, JUL2008
Occupational Exposure Limit-AUSTRIAMAK-TMW 0.2 mg/m3;KZW 0.4 mg/m3, inhal, skin, 2007
Occupational Exposure Limit-BELGIUMtime-weighted average 0.2 mg/m3, Skin, MAR2002
Occupational Exposure Limit-DENMARKtime-weighted average 0.2 mg/m3, skin, MAY2011
Occupational Exposure Limit-FRANCEVME 0.2 mg/m3, Skin, FEB2006
Occupational Exposure Limit-ICELANDtime-weighted average 0.2 mg/m3, skin, NOV2011
Occupational Exposure Limit-KOREAtime-weighted average 0.2 mg/m3, skin, 2006
Occupational Exposure Limit-MEXICOtime-weighted average 0.2 mg/m3 (skin), 2004
Occupational Exposure Limit-NEW ZEALANDtime-weighted average 0.2 mg/m3, skin, JAN2002
Occupational Exposure Limit-PERUtime-weighted average 0,2 mg/m3, JUL2005
Occupational Exposure Limit-POLANDMAC(time-weighted average) 0.5 mg/m3, MAC(short term exposure limit) 1.5 mg/m3, JAN1999
Occupational Exposure Limit-SWITZERLANDMAK-week 0.2 mg/m3, inhal, skin, JAN2011
Occupational Exposure Limit-THE NETHERLANDSMAC-TGG 0.2 mg/m3, 2003
Occupational Exposure Limit-THE PHILIPPINEStime-weighted average 0.2 mg/m3, Skin, JAN1993
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Construction)8H time-weighted average 0.2 mg/m3 (skin)CFRGBR 29,1926.55,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Federal Contractors)8H time-weighted average 0.2 mg/m3 (skin)CFRGBR 41,50-204.50,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (General Industry)8H time-weighted average 0.2 mg/m3 (skin)CFRGBR 29,1910.1000,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Shipyards)8H time-weighted average 0.2 mg/m3 (skin)CFRGBR 29,1915.1000,1993

NIOSH Documentation and Surveillance

OrganizationStandardReference
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Level TO HEXACHLORONAPHTHALENE-air10H time-weighted average 0.2 mg/m3 (Sk)NIOSH* DHHS #92-100,1992
National Occupational Exposure Survey 1983Hazard Code B0100; Number of Industries 1; Total Number of Facilities 52; Number of Occupations 1; Total Number of Employees Exposed 520; Total Number of Female Employees Exposed 52

Status in Federal Agencies

OrganizationReference
EPA TSCA 8(a) PRELIMINARY ASSESSMENT INFORMATION, FINAL RULEFEREAC 47,26992,82
EPA TSCA Section 8(b) CHEMICAL INVENTORY
EPA TSCA Section 8(d) unpublished health/safety studies
EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JANUARY 2001

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