ICSC 1421 - 1,1,2,2-TETRACHLORO-1,2-DIFLUOROETHANE

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

1,1,2,2-TETRACHLORO-1,2-DIFLUOROETHANE

ICSC: 1421
_{November 2003}

1,2-Difluoro-1,1,2,2-tetrachloroethane
CFC-112
Fluorocarbon 112

CAS No: 76-12-0
RTECS No: KI1420000

C₂Cl₄F₂ / Cl₂FCCCl₂F
Molecular mass: 203.8

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRE FIGHTING
FIRE	Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.		In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION

EXPOSURE
Inhalation	Cough. Sore throat. Laboured breathing. Shortness of breath. Cardiac arrhythmia. Confusion. Drowsiness. Unconsciousness.	Ventilation, local exhaust, or breathing protection.	Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention. See Notes.
Skin	Redness.	Protective gloves.	Rinse and then wash skin with water and soap.
Eyes	Redness.	Safety spectacles.	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.

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Sweep spilled substance into covered containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment.

EMERGENCY RESPONSE	STORAGE
	See Chemical Dangers. Well closed.

IMPORTANT DATA

Physical State; Appearance
COLOURLESS TO WHITE SOLID IN VARIOUS FORMS, WITH CHARACTERISTIC ODOUR.

Chemical dangers
On contact with hot surfaces or flames this substance decomposes forming toxic fumes including hydrogen chloride, hydrogen fluoride and phosgene. Reacts with alkali metals, powdered aluminium, magnesium and zinc. Attacks plastic, rubber and coating.

Occupational exposure limits
TLV: 500 ppm as TWA; (ACGIH 2003).
MAK: 200 ppm, 1700 mg/m³; Peak limitation category: II(2); Pregnancy risk group: IIc (see Notes); (DFG 2003).

Routes of exposure
The substance can be absorbed into the body by inhalation of its vapour.

Inhalation risk
A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C.

Effects of short-term exposure
The substance is mildly irritating to the eyes, the respiratory tract and the skin. Inhalation of the substance at high levels may cause lung oedema (see Notes). The substance may cause effects on the cardiovascular system and central nervous system, resulting in cardiac disorders and central nervous system depression. Exposure could cause lowering of consciousness.

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Boiling point: 93°C Melting point: 26°C Density: 1.65 g/cm³ Solubility in water, g/100 ml: 0.012 Vapour pressure, kPa at 20°C: 5.3 Relative vapour density (air = 1): 7.0	This substance may be hazardous in the environment; special attention should be given to its impact on the ozone layer.

NOTES

Do NOT use in the vicinity of a fire or a hot surface, or during welding.
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation is therefore essential.
Freon 112 is a trade name.
Pregnancy risk group IIc means absence of adequate 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 2004

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Updated by AS. Approved by EC. Last update: 05.07.2004