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Name	1,1,2,2-Tetrabromoethane	EINECS	201-191-5
CAS No.	79-27-6	Density	3.004 g/cm³
PSA	0.00000	LogP	3.21820
Solubility	water: 0.63 g/L (20 °C)	Melting Point	1 °C
Formula	C₂H₂Br₄	Boiling Point	243.5 °C at 760 mmHg
Molecular Weight	345.654	Flash Point	97 °C
Transport Information	UN 2504 6.1/PG 3	Appearance	yellowish heavy liquid
Safety	24-27-45-61-1/2	Risk Codes	26-36-52/53
Molecular Structure		Hazard Symbols	T+,T
Synonyms	1,1,2,2-Tetrabromoethylene;Acetylene tetrabromide;Muthmann's liquid;NSC406889;TBE;	Article Data	15

1,1,2,2-Tetrabromoethane Synthetic route

: 540-49-8
cis+trans-dibromoethylene

A: 79-27-6
1,1,2,2-tetrabromoethane

B: C2H2BrF5S

C: C2H2BrF5S

Conditions

Conditions	Yield
With pentafluorosulfanyl bromide at 20℃; for 24h; Irradiation;	A n/a B n/a C 97.1%

: 540-49-8
cis+trans-dibromoethylene

: 79-27-6
1,1,2,2-tetrabromoethane

Conditions

Conditions	Yield
With bromine

: 106-93-4
ethylene dibromide

: 79-27-6
1,1,2,2-tetrabromoethane

Conditions

Conditions	Yield
With aluminum tri-bromide; bromine at 105 - 110℃;

: 74-86-2
acetylene

: 79-27-6
1,1,2,2-tetrabromoethane

Conditions

Conditions	Yield
With water; bromine
With water; bromine; potassium bromide at 22℃; Electrolysis.unter langsamem Hindurchleiten von Acetylen;

: 79-34-5
1,1,2,2-tetrachloroethane

: 79-27-6
1,1,2,2-tetrabromoethane

Conditions

Conditions	Yield
With aluminum tri-bromide

: 79-01-6
Trichloroethylene

A: 79-27-6
1,1,2,2-tetrabromoethane

B: 594-78-5
1,1,2-tribromo-1,2,2-trichloro-ethane

Conditions

Conditions	Yield
With bromine Irradiation;

: 4544-20-1
2-ethoxy-1,3-dioxolane

: 75-25-2
Bromoform

: 79-27-6
1,1,2,2-tetrabromoethane

Conditions

Conditions	Yield
dibenzoyl peroxide at 100℃; for 2h; Rate constant; Product distribution; other temperature, other time;

: 76508-46-8
2-ethoxy-1,3-dioxane

: 75-25-2
Bromoform

: 79-27-6
1,1,2,2-tetrabromoethane

Conditions

Conditions	Yield
dibenzoyl peroxide at 100℃; for 2h; Rate constant; Product distribution; other temperature;

: 5721-88-0
2-phenyl-1,3-oxathiolane

A: 79-27-6
1,1,2,2-tetrabromoethane

B: 81110-22-7
S-(2-bromoethyl) benzothioate

C: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
With Bromoform; di-tert-butyl peroxide at 130℃; for 4.5h; Yields of byproduct given;	A n/a B 16 % Turnov. C n/a

: 27001-65-6
2-propyl-1,3-oxathiolan

A: 79-27-6
1,1,2,2-tetrabromoethane

B: 83124-63-4
2-bromoethyl thiobutyrate

C: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
With Bromoform; di-tert-butyl peroxide at 130℃; for 4.5h; Yields of byproduct given;	A n/a B 14 % Turnov. C n/a

1,1,2,2-Tetrabromoethane Chemical Properties

IUPAC: 1,1,2,2-Tetrabromoethane
CAS:79-27-6
The Molecular formula of Acetylene tetrabromide (79-27-6):C₂H₂Br₄
The Molecular Weight of Acetylene tetrabromide (79-27-6):345.65
EINECS:201-191-5
Synonyms: Ethanetetrabromide ; 1,1,2,2-Tetrabromoethane ; Acetylene tetrabromide ; muthmanns liquid ; Tetrabromoethane ; Sym-tetrabromoethane ; Tbe ; 1,1,2,2-Tetrabromaethan
Density:2.967 g/mL at 25^oC(lit.)
Melting Point:1^oC
Boiling Point:244^oC
Flash Point:97^oC
Water Solubility:0.63 g/L (20^oC)
Stability:Stable. Incompatible with strong oxidizing agents, aluminium, magnesium, alkali metals.
Vapor density:11.9 (vs air)
Vapor pressure:0.1 mm Hg ( 20^oC)
Refractive index:n20/D 1.637(lit.)
Appearance:Pale-yellow liquid with a pungent odor similar to camphor or iodoform.
Enthalpy of Vaporization:46.11 kJ/mol
Product Categories:Intermediates of Dyes and Pigments;Organics
Mol File:79-27-6.mol

1,1,2,2-Tetrabromoethane Uses

Acetylene tetrabromide (79-27-6) is a separating mineral by specific gravity. It is used as a solvent for fats, oils, and waxes.

1,1,2,2-Tetrabromoethane Toxicity Data With Reference

1.	skn-rbt 500 mg/24H MOD	AIHAAP American Industrial Hygiene Association Journal. 24 (1963),28.
2.	eye-rbt 100 mg MLD	AIHAAP American Industrial Hygiene Association Journal. 24 (1963),28.
3.	mmo-sat 10 µg/plate	TECSDY Toxicological and Environmental Chemistry. 15 (1987),101.
4.	dnr-esc 29,640 µg/disc	MUREAV Mutation Research. 41 (1976),61.
5.	skn-mus TDLo:130 g/kg/74W-I:NEO	JJIND8 JNCI, Journal of the National Cancer Institute. 63 (1979),1433.
6.	orl-rat LD50:1200 mg/kg	VRDEA5 Vrachebnoe Delo. Medical Profession(3),(1967),80.
7.	ihl-rat LC50:549 mg/m3/4H	85GMAT Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure Izmerov, N.F., et al.,Moscow, USSR.: Centre of International Projects, GKNT,1982,107.
8.	skn-rat LD50:5250 mg/kg	85GMAT Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure Izmerov, N.F., et al.,Moscow, USSR.: Centre of International Projects, GKNT,1982,107.
9.	orl-mus LD50:269 mg/kg	85GMAT Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure Izmerov, N.F., et al.,Moscow, USSR.: Centre of International Projects, GKNT,1982,107.

1,1,2,2-Tetrabromoethane Consensus Reports

Reported in EPA TSCA Inventory. EPA Genetic Toxicology Program.

1,1,2,2-Tetrabromoethane 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 highly toxic fumes of carbonyl bromide and Br⁻. See also ACETYLENE COMPOUNDS and ALKYNES and BROMIDES.

Safty informations about Acetylene tetrabromide (79-27-6):
Hazard Codes:T+
Risk Statements:26-36-52/53
26(Very Toxic by inhalation)
36(Irritating to the eyes)
52/53(Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment)
Safety Statements:24-27-45-61-1/2
24(Avoid contact with skin)
27(Take off immediately all contaminated clothing)
45(In case of accident or if you feel unwell, seek medical advice immediately (show label where possible))
61(Avoid release to the environment. Refer to special instructions safety data sheet)
1/2(Keep locked up and out of the reach of children)
RIDADR:UN 2504 6.1/PG 3
WGK Germany:2
RTECS:KI8225000
HazardClass:6.1
HS Code:29033036

1,1,2,2-Tetrabromoethane Standards and Recommendations

OSHA PEL: TWA 1 ppm
ACGIH TLV: TWA 1 ppm
DFG MAK: 1 ppm (14 mg/m³)

1,1,2,2-Tetrabromoethane Analytical Methods

For occupational chemical analysis use NIOSH: see 1,1,2,2-Tetrabromoethane, 2003.

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