HEXACHLORONAPHTHALENE (ICSC)

HEXACHLORONAPHTHALENE	ICSC: 0997

Date of peer-review: March 2001

CAS #	1335-87-1	C₁₀H₂Cl₆
RTECS #	QJ7350000	Molecular mass: 334.7
UN #
EC #

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.		Water spray, foam, powder, carbon dioxide.
EXPLOSION

EXPOSURE		PREVENT DISPERSION OF DUST! STRICT HYGIENE!	IN ALL CASES CONSULT A DOCTOR!
Inhalation		Local exhaust or breathing protection.	Fresh air, rest.
Skin	MAY BE ABSORBED! Redness. Pain.	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
Eyes	Redness. Pain.	Face shield, or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion		Do not eat, drink, or smoke during work.	Rinse mouth. Refer for medical attention.

SPILLAGE DISPOSAL

PACKAGING & LABELLING

Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment. Chemical protection suit. (Extra personal protection: P2 filter respirator for harmful particles).

EU Classification
UN Classification

EMERGENCY RESPONSE

STORAGE

Separated from strong oxidants, food and feedstuffs.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities © IPCS, CEC 2001

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HEXACHLORONAPHTHALENE

ICSC: 0997

IMPORTANT DATA

PHYSICAL STATE; APPEARANCE:
WHITE SOLID IN VARIOUS FORMS, WITH CHARACTERISTIC ODOUR.

CHEMICAL DANGERS:
The substance decomposes on burning producing toxic gases including hydrogen chloride and phosgene. Reacts with strong oxidants.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: (as TWA) 0.2 mg/m^3 skin (ACGIH 2000).

ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its fumes and through the skin.

INHALATION RISK:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the eyes and the skin.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact with skin may cause dermatitis (chloracne). The substance may have effects on the liver, resulting in liver impairment.

PHYSICAL PROPERTIES

Boiling point: 344-388°C
Melting point: 137°C
Density: 1.78 g/cm^3
Solubility in water: none
Vapour pressure, Pa at °C: < 0.01
Relative vapour density (air = 1): 11.6

Octanol/water partition coefficient as log Pow: 7.59

ENVIRONMENTAL DATA

In the food chain important to humans, bioaccumulation takes place, specifically in fish. It is strongly advised not to let the chemical enter into the environment because it persists in the environment. The substance may cause long-term effects in the aquatic environment.

NOTES

Halowax is a trade name for chlorinated naphthalenes.

ADDITIONAL INFORMATION

LEGAL NOTICE

Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information

    See Also:
       Toxicological Abbreviations