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NIOSH

1,1-DICHLORO-1-FLUOROETHANE

ICSC: 1712

Ethane, 1,1-dichloro-1-fluoro
Dichlorofluoroethane
HCFC-141b
C2H3Cl2F/CH3CCl2F
Molecular mass: 117
ICSC # 1712 		CAS # 1717-00-6
RTECS # KI0997000
EC # 602-084-00-X
April 10, 2008 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Gives off irritating or toxic fumes (or gases) in a fire.
NO contact with hot surfaces.
Water spray, foam, powder, carbon dioxide .
EXPLOSION

In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE


•INHALATION Drowsiness. Confusion. Unconsciousness.
Closed system and ventilation.
Fresh air, rest. Refer for medical attention.
•SKIN Redness. Pain.
Protective gloves.
Rinse and then wash skin with water and soap.
•EYES Redness. Pain.
Safety goggles
Rinse with plenty of water (remove contact lenses if easily possible).
•INGESTION

Do NOT induce vomiting.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Personal protection: self-contained breathing apparatus. Ventilation. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment.
Separated from strong acids. Cool. Keep in a well-ventilated room. Store in an area without drain or sewer access.

N symbol
R: 52/53-59
S: 59-61
Signal: Warning
Excl mark
Causes eye irritation
May cause drowsiness or dizziness
Harmful to aquatic life
ICSC: 1712 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

1,1-DICHLORO-1-FLUOROETHANE

ICSC: 1712

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D

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A

PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID , WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:
The vapour is heavier than air and may accumulate in lowered spaces causing a deficiency of oxygen.

CHEMICAL DANGERS:
The substance decomposes on contact with hot surfaces or flames producing hydrogen chloride , hydrogen fluoride and phosgene . Reacts with strong acids .

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
MAK not established.


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation .

INHALATION RISK:
On loss of containment this liquid evaporates very quickly displacing the air and causing a serious risk of suffocation when in confined areas.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is mildly irritating to the eyes . The substance may cause effects on the central nervous system and cardiovascular system , resulting in lowering of consciousness and cardiac disorders . Suffocation.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:

PHYSICAL
PROPERTIES

Boiling point: 32°C
Melting point: -103.5°C
Density: 1.24
g/cm3
Solubility in water: 0.4 g/100 ml
at 20°C
Vapour pressure, kPa at 25°C: 76.3
Relative vapour density (air = 1): 4.0
Relative density of the vapour/air-mixture at 20°C (air = 1): 3.3 (calculated)
Auto-ignition temperature: 530- 550°C
Explosive limits, vol% in air: 5.6-17.7
Octanol/water partition coefficient as log Pow: 2.3
Viscosity, mm2/s at 25 °C: 0.33

ENVIRONMENTAL
DATA

The substance is harmful to aquatic organisms. This substance may be hazardous in the environment; special attention should be given to its impact on the ozone layer.

N O T E S

High concentrations in the air cause a deficiency of oxygen with the risk of unconsciousness or death. Check oxygen content before entering area.

ADDITIONAL INFORMATION



ICSC: 1712 1,1-DICHLORO-1-FLUOROETHANE
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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