Trichloronaphthalene

  • Halowax
  • Seekay wax
  • Nibran wax
Formula
C10H5Cl3
Structure
Description
Colorless to pale yellow solid. Aromatic odor.
Uses
Employed in lubricants and as insulation for electrical wire.

Registry Numbers and Inventories.
CAS
1321-65-9
EC (EINECS/ELINCS)
215-321-3
RTECS
QK4025000
RTECS class
Other
Beilstein/Gmelin
NA
Swiss Giftliste 1
G-2992
Canada DSL/NDSL
NDSL
US TSCA
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C10H5Cl3
Formula mass
231.50
Melting point, °C
93
Boiling point, °C
304
Vapor pressure, mmHg
<1
Vapor density (air=1)
8.0
Density
1.58 g/cm3 (20 C)
Solubility in water
Insoluble

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Persons should be provided with and required to use impervious clothing, gloves, faceshields (eight inch minimum) and other appropriate clothing to prevent skin contact with liquid or molten trichloronaphthalene or its fumes. Wear appropriate clothing to prevent any possibility of skin contact with molten material or solutions. Wear eye protection and wash promptly when skin is contaminated. Wear appropriate personal protective clothing and eye protection to prevent contact.
Respirators
Emergency or planned entry into unknown concn or idlh conditions: respirator class(es): any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode. Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained breathing apparatus operated in pressure-demand or other positive-pressure mode.
Small spills/leaks
Evacuate area and ventilate. Wear protective equipment. If required, use an inert absrobent. Sweep up and place in an appropriate container for disposal. Wash contaminated surfaces.
Stability
No data.
Incompatibilities
Contact with strong oxidizing agents may cause fires and explosions.

Fire.
Flash Point,°C
200
Fire fighting
Extinguishant: Foam, carbon dioxide, dry chemical. Also wear a self-contained breathing apparatus (scba) with a full facepiece operated in the pressure demand or other positive pressure mode.
Combustion products
Toxic gases and vapors (such as hydrogen chloride, phosgene, and carbon monoxide) may be released in a fire involving trichloronaphthalene.
Health
2

Health.
Exposure limit(s)
NIOSH REL: TWA 5 mg/m3 [skin] OSHA PEL: TWA 5 mg/m3 [skin]
Poison_Class
3
Exposure effects
Peripheral neuropathy, with sensory impairment and lower extremity weakness, central neuropathy, mental status changes, headache and dizziness occur after exposure. Mild exposure may result in asymptomatic EMG alterations. Dioxins have not been proven to produce adverse reproductive effects in humans. However, low birthweights, ectodermal dysplasia, and growth and neurological deficits have been associated with dioxin exposure. Data on spontaneous abortions, decreased sperm quality and feminizing alterations of sex hormones have been mixed. TCDD accumulates in breast milk, and neurolgical deficits and increases in T4 and TSH have been associated with lactational exposure. TCDD is considered an animal teratogen.
   Ingestion
Right-upper-quadrant pain, anorexia, nausea and vomiting may be early symptoms. Pancreatitis occurred in one case of industrial exposure.
   Inhalation
Dyspnea may be noted.
   Skin
The initial dermal reaction is extensive inflammation of exposed areas with photosensitivity, followed by development of chloracne.
   Eyes
Inflammation of the eye, irritation and burning may be noted.

First aid
 
   Ingestion
Administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents.
   Inhalation
Move victim to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, pneumonitis or bronchits. Administer oxygen and assist ventilation as required.
   Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. Seek medical assistance if irritation or pain persists. Personnel involved in washing patients should wear gloves and avoid contact with contaminated clothing.
   Eyes
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, tearing, or sensitivity to light persist, the patient should be seen in a health care facility.

Transport.
USCG CHRIS Code
CLF
 
36 Halogenated hydrocarbons