Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content
NIOSH

1,1,2,2-TETRABROMOETHANE

ICSC: 1235

Acetylene tetrabromide
Tetrabromoacetylene
sym-Tetrabromoethane
C2H2Br4 / Br2CHCHBr2
Molecular mass: 345.7
ICSC # 1235 		CAS # 79-27-6
RTECS # KI8225000
UN # 2504
EC # 602-016-00-9
October 27, 2004 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames.
Powder, water spray, foam, carbon dioxide.
EXPLOSION


EXPOSURE
PREVENT GENERATION OF MISTS!

•INHALATION Cough. Sore throat. Headache. Dizziness. Nausea. Abdominal pain.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Refer for medical attention.
•SKIN Redness.
Protective gloves.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
•EYES Redness.
Safety spectacles, or eye protection in combination with breathing protection.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•INGESTION (See Inhalation).
Do not eat, drink, or smoke during work.
Rinse mouth. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in dry sand or inert absorbent and remove to safe place. Do NOT let this chemical enter the environment. Personal protection: self-contained breathing apparatus.
Separated from strong oxidants, strong bases, food and feedstuffs . Well closed. Ventilation along the floor.
Do not transport with food and feedstuffs.
T+ symbol
R: 26-36-52/53
S: 1/2-24-27-45-61
UN Hazard Class: 6.1
UN Packing Group: III
ICSC: 1235 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.

1,1,2,2-TETRABROMOETHANE

ICSC: 1235

I

M

P

O

R

T

A

N

T


D

A

T

A

PHYSICAL STATE; APPEARANCE:
YELLOW, HEAVY LIQUID , WITH PUNGENT ODOUR.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
The substance decomposes on burning producing toxic and corrosive fumes including carbonyl bromide, hydrogen bromide. Reacts with strong bases and strong oxidants . Attacks some metals such as aluminium, magnesium and zinc, and some plastics, rubber and coatings.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: (inhalable fraction & vapour) 0.1 ppm as TWA; (ACGIH 2008).
MAK: IIb (not established but data is available); (DFG 2008).
OSHA PEL: TWA 1 ppm (14 mg/m3)
NIOSH REL: See Appendix D
NIOSH IDLH: 8 ppm See: 79276


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its vapour and by ingestion.

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 irritating to the eyes , the skin and the respiratory tract . The substance may cause effects on the central nervous system and liver , resulting in impaired functions .

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the liver .

PHYSICAL
PROPERTIES

Boiling point: 243.5°C
Melting point: 0°C
Relative density (water = 1): 2.96
Solubility in water:
none
Vapour pressure, Pa at 24°C: 5.32
Relative vapour density (air = 1): 11.9
Auto-ignition temperature: 335°C
Octanol/water partition coefficient as log Pow: 2.8

ENVIRONMENTAL
DATA

The substance is harmful to aquatic organisms.

N O T E S

Muthmann's liquid is another synonym.
Transport Emergency Card: TEC (R)-61GT1-III

NFPA Code: H3; F0; R1;
Card has been partially updated in February 2009: see Occupational Exposure Limits.

ADDITIONAL INFORMATION



ICSC: 1235 1,1,2,2-TETRABROMOETHANE
(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.
Top