1,1,2,2-Tetrabromoethane Property

Melting point:

1 °C

Boiling point:

244 °C

Density 

2.967 g/mL at 25 °C(lit.)

vapor density 

11.9 (vs air)

vapor pressure 

0.1 mm Hg ( 20 °C)

refractive index 

n20/D 1.637(lit.)

Flash point:

118-120°C/15mm

storage temp. 

Store at +15°C to +25°C.

solubility 

alcohol: miscible

form 

Liquid

color 

Clear

Water Solubility 

0.63 g/L (20 ºC)

Merck 

14,9185

BRN 

1098321

Henry's Law Constant

6.40 at 20 °C (approximate - calculated from water solubility and vapor pressure)

Exposure limits

NIOSH REL: IDLH 8 ppm; OSHA PEL: 1 ppm (14 mg/m³).

Dielectric constant

5.6（Ambient）

Stability:

Stable. Incompatible with strong oxidizing agents, aluminium, magnesium, alkali metals.

CAS DataBase Reference

79-27-6(CAS DataBase Reference)

NIST Chemistry Reference

1,1,2,2-Tetrabromoethane(79-27-6)

EPA Substance Registry System

1,1,2,2-Tetrabromoethane (79-27-6)

Safety

Hazard Codes 

T+,T

Risk Statements 

26-36-52/53

Safety Statements 

24-27-45-61-1/2

RIDADR 

UN 2504 6.1/PG 3

WGK Germany 

2

RTECS 

KI8225000

F 

8

Autoignition Temperature

635 °F

Hazard Note 

Toxic

TSCA 

Yes

HazardClass 

6.1

PackingGroup 

III

HS Code 

29033036

Hazardous Substances Data

79-27-6(Hazardous Substances Data)

Toxicity

LD50 i.p. in mice: 443.3 mg/kg (Wolff)

IDLA

8 ppm

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H330Fatal if inhaled

H412Harmful to aquatic life with long lasting effects

Precautionary statements

P273Avoid release to the environment.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

1,1,2,2-Tetrabromoethane Chemical Properties,Usage,Production

Chemical Properties

yellowish heavy liquid with odour of camphor and

Chemical Properties

Acetylene tetrabromide is a combustible, colorless to yellow liquid. Strong odor.

Physical properties

Colorless to pale yellow liquid with a pungent odor resembling camphor and iodoform

Uses

Gauge fluid; solvent; refractive index liquid in microscopy

Uses

In microscopy, as solvent, separating minerals by density.

Uses

1,1,2,2-Tetrabromoethane was used to prepare tribromoethene by dehydrohalogenation using sodium hydroxide in methanol.

Uses

Heavy liquid used for the separation of minerals

General Description

A yellowish liquid with a pungent odor, much like camphor. Irritates skin. Ingestion or inhalation may produce irritation or a narcotic effect. Chronic exposure may damage liver. Noncombustible, but decomposes at 374°F, releasing flammable and toxic fumes. Much denser than water. Used as a solvent for fats, oils and waxes.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

1,1,2,2-Tetrabromoethane is incompatible with strong bases and chemically active metals. Incompatible with hot iron, aluminum and zinc in the presence of steam. May react with magnesium. Softens or destroys most plastics and rubber .

Health Hazard

Inhalation of vapors or dust is extremely irritating. May cause burning of eyes and flow of tears. May cause coughing, difficult breathing and nausea. Brief exposure effects last only a few minutes. Exposure in an enclosed area may be very harmful. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may cause pollution.

Fire Hazard

Some of these materials may burn, but none ignite readily. Containers may explode when heated.

Safety Profile

Poison by inhalation, ingestion, and intraperitoneal routes. An eye and skin irritant and a narcotic. Questionable carcinogen with experimental neoplastigenic data. Mutation data reported. When heated it emits hghly toxic fumes of carbonyl bromide and Br-. See also ACETYLENE COMPOUNDS and BROMIDES

Potential Exposure

Acetylene tetrabromide is used as a solvent; a gauge fluid, and as a refractive index liquid in microscopy.

Shipping

UN2504 Tetrabromoethane, Hazard Class: 6.1; Labels: 6.1-Poisonous materials

Purification Methods

Wash it successively with conc H2SO4 (three times) and H2O (three times), dry it with K2CO3 and CaSO4 and distil it in a vacuum or at ~760mm. [Beilstein 1 IV 162.]

Incompatibilities

Chemically active metals (sodium, potassium, magnesium, and zinc), strong caustics; hot iron. Contact with strong oxidizers may cause fire and explosions.

Waste Disposal

Incineration in admixture with combustible fuel and with scrubber to remove halo acids produced.