ICSC 0795 - alpha-HEXACHLOROCYCLOHEXANE

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alpha-HEXACHLOROCYCLOHEXANE	ICSC: 0795 (November 2009)
alpha-1,2,3,4,5,6-Hexachlorocyclohexane alpha-Benzenehexachloride (alpha-BHC) alpha-Hexachloran

CAS #: 319-84-6

UN #: 2761

EC Number: 206-270-8

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Not combustible. Liquid formulations containing organic solvents may be flammable. Gives off irritating or toxic fumes (or gases) in a fire. Risk of fire and explosion if formulations contain flammable/explosive solvents.		In case of fire in the surroundings, use appropriate extinguishing media. In case of fire: keep drums, etc., cool by spraying with water.

AVOID ALL CONTACT! AVOID EXPOSURE OF BREASTFEEDING WOMEN!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Sore throat. See Ingestion.	Avoid inhalation of dust.	Fresh air, rest. Seek medical attention if you feel unwell.
Skin	MAY BE ABSORBED!	Protective gloves. Protective clothing.	Wear protective gloves when administering first aid. Remove contaminated clothes. Rinse and then wash skin with water and soap. Seek medical attention if you feel unwell.
Eyes	Redness.	Wear face shield or eye protection in combination with breathing protection.	Rinse with plenty of water (remove contact lenses if easily possible).
Ingestion	Headache. Nausea. Vomiting. Diarrhoea. Dizziness. Tremor. Convulsions.	Do not eat, drink, or smoke during work. Wash hands before eating.	Rinse mouth. Give a slurry of activated charcoal in water to drink, but NOT if convulsions occur. Refer immediately for medical attention.

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: filter respirator for organic gases and particulates adapted to the airborne concentration of the substance, chemical protection suit including self-contained breathing apparatus and protective gloves. Do NOT let this chemical enter the environment. Sweep spilled substance into sealable non-metallic containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.	According to UN GHS Criteria Toxic if swallowed May be harmful in contact with skin Suspected of causing cancer May cause harm to breast-fed children Causes damage to central nervous system May cause damage to liver and kidneys through prolonged or repeated exposure Very toxic to aquatic life with long lasting effects Transportation UN Classification UN Hazard Class: 6.1; UN Pack Group: III
STORAGE
Well closed. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing. Separated from bases, metals and food and feedstuffs.
PACKAGING
Do not transport with food and feedstuffs.

alpha-HEXACHLOROCYCLOHEXANE

ICSC: 0795

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance BROWN-TO-WHITE CRYSTALLINE POWDER WITH CHARACTERISTIC ODOUR. Physical dangers No data. Chemical dangers Decomposes on contact with hot surfaces or flames. This produces toxic and corrosive fumes including chlorine (see ICSC 0126), hydrogen chloride (see ICSC 0163) and phosgene (see ICSC 0007). Reacts with bases and powdered metals.	Formula: C₆H₆Cl₆ Molecular mass: 290.8 Boiling point: 288°C Melting point: 157-160°C Density: 1.9 g/cm³ Solubility in water: very poor Vapour pressure, Pa at 20°C: 0.003 Relative vapour density (air = 1): 10 Octanol/water partition coefficient as log Pow: 3.8

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
BROWN-TO-WHITE CRYSTALLINE POWDER WITH CHARACTERISTIC ODOUR.

Physical dangers
No data.

Chemical dangers
Decomposes on contact with hot surfaces or flames. This produces toxic and corrosive fumes including chlorine (see ICSC 0126), hydrogen chloride (see ICSC 0163) and phosgene (see ICSC 0007). Reacts with bases and powdered metals.

Formula: C₆H₆Cl₆
Molecular mass: 290.8
Boiling point: 288°C
Melting point: 157-160°C
Density: 1.9 g/cm³
Solubility in water: very poor
Vapour pressure, Pa at 20°C: 0.003
Relative vapour density (air = 1): 10
Octanol/water partition coefficient as log Pow: 3.8

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion. Effects of short-term exposure The substance may cause effects on the central nervous system. This may result in convulsions.	Inhalation risk A harmful concentration of airborne particles can be reached quickly when dispersed. Effects of long-term or repeated exposure The substance may have effects on the central nervous system, kidneys and liver. This substance is probably carcinogenic to humans.

EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion.

Effects of short-term exposure
The substance may cause effects on the central nervous system. This may result in convulsions.

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed.

Effects of long-term or repeated exposure
The substance may have effects on the central nervous system, kidneys and liver. This substance is probably carcinogenic to humans.

OCCUPATIONAL EXPOSURE LIMITS
MAK: (inhalable fraction): 0.1 mg/m³; peak limitation category: II(8); skin absorption (H); carcinogen category: 4; pregnancy risk group: D

ENVIRONMENT
The substance is very toxic to aquatic organisms. Bioaccumulation of this chemical may occur along the food chain, for example in fish and seafood. The substance may cause long-term effects in the aquatic environment. This substance does enter the environment under normal use. Great care, however, should be taken to avoid any additional release, for example through inappropriate disposal.

NOTES
This substance is a component of the insecticide hexachlorocyclohexane (mixed isomers). Carrier solvents used in commercial formulations may change physical and toxicological properties. The symptoms of convulsions do not become manifest until 0.5 to several hours. Do NOT take working clothes home. Do NOT use in the vicinity of a fire or a hot surface, or during welding. See ICSCs 0053, 0487 and 0796.

NOTES

This substance is a component of the insecticide hexachlorocyclohexane (mixed isomers).
Carrier solvents used in commercial formulations may change physical and toxicological properties.
The symptoms of convulsions do not become manifest until 0.5 to several hours.
Do NOT take working clothes home.
Do NOT use in the vicinity of a fire or a hot surface, or during welding.
See ICSCs 0053, 0487 and 0796.

ADDITIONAL INFORMATION

EC Classification
Symbol: T, N; R: 21-25-40-50/53; S: (1/2)-22-36/37-45-60-61; Note: C

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