ICSC 0795 - alpha-HEXACHLOROCYCLOHEXANE

[List of Chemicals] [Risk Notes] [Risk Phrases] [Safety Phrases] [Danger Symbols]

alpha-HEXACHLOROCYCLOHEXANE

ICSC: 0795
_{November 1998}

1-alpha,2-alpha,3-beta,4-alpha,5-beta,6-beta-Hexachlorocyclohexane
alpha-1,2,3,4,5,6-Hexachlorocyclohexane
alpha-Benzenehexachloride (alpha-BHC)

CAS No: 319-84-6
RTECS No: GV3500000
EC No: 602-042-00-0

C₆H₆Cl₆
Molecular mass: 290.8

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.		In case of fire in the surroundings: all extinguishing agents allowed.
EXPLOSION

EXPOSURE		PREVENT DISPERSION OF DUST! STRICT HYGIENE!
Inhalation	Cough. Sore throat. See Notes.	Local exhaust or breathing protection.	Fresh air, rest. Refer for medical attention.
Skin	MAY BE ABSORBED!	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
Eyes		Safety goggles, or face shield.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion	Diarrhoea. Dizziness. Headache. Nausea. Vomiting. Tremors.	Do not eat, drink, or smoke during work.	Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention.

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment. (Extra personal protection: P2 filter respirator for harmful particles).	EU classification T Symbol N Symbol R: 21-25-40-50/53 S: (1/2-)22-36/37-4 Note: C 5-6 0-6 1

EMERGENCY RESPONSE	SAFE STORAGE
	Well closed. Store in an area without drain or sewer access.

IMPORTANT DATA

Physical State; Appearance
CRYSTALLINE POWDER, WITH CHARACTERISTIC ODOUR.

Chemical dangers
The substance decomposes in a fire, producing toxic fumes phosgene (see ICSC # 0007) and hydrogen chloride (see ICSC 0163). Reacts with bases.

Occupational exposure limits
TLV not established.
MAK: (Inhalable fraction) 0.5 mg/m³; Peak limitation category: II(8); skin absorption (H); (DFG 2006).

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

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.

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

Effects of long-term or repeated exposure
The substance may have effects on the blood and liver. This substance is possibly carcinogenic to humans.

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Boiling point: 288°C Melting point: 157-160°C Density: 1.9 g/cm³ Solubility in water: none Vapour pressure, Pa at 20°C: 2.7 Octanol/water partition coefficient as log Pow: 3.8	The substance is very toxic to aquatic organisms. In the food chain important to humans, bioaccumulation takes place, specifically in seafood. The substance may cause long-term effects in the aquatic environment. It is strongly advised that this substance does not enter the environment.

NOTES

This substance is a component of the insecticide hexachlorocyclohexane (mixed isomers).
Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken.
Do NOT take working clothes home.
Also consult ICSC # 0487 (Hexachlorocyclohexane).
Card has been partially updated in August 2007: see Storage, Occupational Exposure Limits, Environmental Data.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2006

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Updated by AS. Approved by GS. Last update: 29.01.2008