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Chemical Sampling Information (CSI)
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General Description

Synonyms: Halowax; Seekay wax; Nibren wax

OSHA IMIS Code Number: 2350

Chemical Abstracts Service (CAS) Registry Number: 1335-88-2

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: QK3700000; 50815

NIOSH Pocket Guide to Chemical Hazards, Tetrachloronaphthalene: Chemical description, physical properties, potentially hazardous incompatibilities, and more

Chemical Description and Physical Properties:
colorless to pale yellow solid with an aromatic odor
molecular weight: 266
boiling point: 600 to 680°F
vapor pressure: <1 mm
melting point: 239°F
Incompatibilities: Strong oxidizers

Exposure Limits

OSHA Permissible Exposure Limit (PEL):
General Industry: 2 mg/m3 (Skin)

Construction Industry: 2 mg/m3 TWA (Skin)
American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 2 mg/m3 TWA

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 2 mg/m3 TWA (Skin)


Health Factors

Potential Symptoms: Acneform dermatitis; headaches; fatigue; anorexia; vertigo; jaundice, liver injury

Health Effects: Cumulative liver damage/Chloracne (HE3)

Affected Organs: Liver, skin


Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • sampling media: OSHA Versatile Sampler (OVS-2) - 13 mm XAD-2 tube (270/140 mg sections, 20/60 mesh) with Glass Fiber Filter enclosed
    analytical solvent: Toluene
    maximum volume: 100 Liters
    maximum flow rate: 1.0 L/min
    current analytical method: Gas Chromatography; GC/ECD
    method reference: 2 (OSHA In-House File)
    method classification: Partially Validated
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Page last updated: 09/10/1992