1,2-DICHLOROETHANE
Properties of 1,2-dichloroethane
is described below:
PHYSICAL
STATE; APPEARANCE:
COLOURLESS, VISCOUS
LIQUID , WITH CHARACTERISTIC ODOUR. TURNS DARK ON EXPOSURE TO AIR,
MOISTURE AND LIGHT.
PHYSICAL DANGERS:
The vapour is heavier than air and may travel along the ground;
distant ignition possible. As a result of flow, agitation, etc.,
electrostatic charges can be generated.
CHEMICAL DANGERS:
The substance decomposes on heating and on burning producing toxic
and corrosive fumes including hydrogen chloride (ICSC 0163) and phosgene
(ICSC 0007). Reacts violently with aluminium, alkali metals, alkali
amides, ammonia, bases, strong oxidants. Attacks many metals in presence
of water. Attacks plastic.
OCCUPATIONAL EXPOSURE LIMITS:
TLV: 10 ppm; 40 mg/m3 (as
TWA) (ACGIH 1994-1995).
OSHA PEL: TWA 50 ppm C 100 ppm 200 ppm 5-minute maximum peak in any 3
hours
NIOSH REL: Ca TWA 1 ppm (4 mg/m3) ST 2 ppm (8 mg/m3)
NIOSH IDLH: Potential occupational carcinogen 50 ppm
ROUTES
OF EXPOSURE:
The substance can be
absorbed into the body by inhalation of its vapour, through the skin and
by ingestion.
INHALATION RISK:
A harmful contamination of the air can be reached very quickly on
evaporation of this substance at 20°C.
EFFECTS OF SHORT-TERM EXPOSURE:
The vapour irritates the eyes, the skin and the respiratory tract.
Inhalation of the vapour may cause lung oedema (see Notes). The
substance may cause effects on the central nervous system, kidneys,
liver, resulting in impaired functions.
EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact with skin may cause dermatitis. This
substance is probably carcinogenic to humans.
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For more information see website:
http://www.cdc.gov/niosh/ipcsneng/neng0250.html
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