Tetrabromoethane

Tetrabromoethane
Names
	Preferred IUPAC name 1,1,2,2-Tetrabromoethane
	Other names Acetylene tetrabromide; Muthmann's liquid; Tetrabromoacetylene; Symmetrical tetrabromoethane;
Identifiers
CAS Number	79-27-6 ;
3D model (JSmol)	Interactive image;
Abbreviations	TBE
Beilstein Reference	1098321
ChemSpider	6339 ;
ECHA InfoCard	100.001.083
EC Number	201-191-5;
MeSH	1,1,2,2-tetrabromoethane
PubChem CID	6588;
RTECS number	KI8225000;
UNII	V00GKC584O ;
UN number	2504
CompTox Dashboard (EPA)	DTXSID1026083 ;
	InChI InChI=1S/C2H2Br4/c3-1(4)2(5)6/h1-2H Key: QXSZNDIIPUOQMB-UHFFFAOYSA-N ;
	SMILES BrC(Br)C(Br)Br;
Properties
Chemical formula	C2H2Br4
Molar mass	345.654 g·mol−1
Appearance	Colourless liquid
Density	2.967 g mL−1
Melting point	−1.0 °C; 30.3 °F; 272.2 K
Boiling point	243.6 °C; 470.4 °F; 516.7 K
Solubility in water	630 mg L−1 (at 20 °C)
Vapor pressure	10 Pa (at 20 °C)
Magnetic susceptibility (χ)	−123.4·10−6 cm3/mol
Refractive index (nD)	1.637
Thermochemistry
Heat capacity (C)	165.7 J K−1 mol−1
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H319, H330, H412
Precautionary statements	P260, P273, P284, P305+P351+P338, P310
NFPA 704 (fire diamond)	3 1 1
Flash point	97 °C (207 °F; 370 K)
Autoignition; temperature	335 °C (635 °F; 608 K)
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	1.2 g kg−1 (oral, rat); 5.25 g kg−1 (dermal, rat); 0.4 g/kg (oral, guinea pig); 0.4 g/kg (oral, rabbit); 0.269 g/kg (oral, mouse);
LC50 (median concentration)	38 ppm (rat, 4 hr)
	NIOSH (US health exposure limits):
PEL (Permissible)	TWA 1 ppm (14 mg/m3)
REL (Recommended)	None established
IDLH (Immediate danger)	8 ppm
Safety data sheet (SDS)	hells-confetti.com
Related compounds
Related alkanes	Dibromomethane; Bromoform; Tetrabromomethane; 1,1-Dibromoethane; 1,2-Dibromoethane; 1,2-Dibromopropane; 1,3-Dibromopropane; 1,2,3-Tribromopropane;
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

1,1,2,2-Tetrabromoethane, or simply tetrabromoethane (TBE), is a halogenated hydrocarbon, chemical formula C₂H₂Br₄. Although three bromine atoms may bind to one of the carbon atoms creating 1,1,1,2-tetrabromoethane this is not thermodynamically favorable, so in practice tetrabromoethane is equal to 1,1,2,2-tetrabromoethane, where each carbon atom binds two bromine atoms.