Carbon tetrabromide

Carbon tetrabromide
Names
	Preferred IUPAC name Tetrabromomethane
	Other names Carbon(IV) bromide; Carbon bromide, neutral (1:4); Carbon tetrabromide;
Identifiers
CAS Number	558-13-4 ;
3D model (JSmol)	Interactive image;
Abbreviations	R-10B4
Beilstein Reference	1732799
ChEBI	CHEBI:47875 ;
ChemSpider	10732 ;
ECHA InfoCard	100.008.355
EC Number	209-189-6;
Gmelin Reference	26450
MeSH	carbon+tetrabromide
PubChem CID	11205;
RTECS number	FG4725000;
UNII	NLH657095L ;
UN number	2516
CompTox Dashboard (EPA)	DTXSID8060327 ;
	InChI InChI=1S/CBr4/c2-1(3,4)5 Key: HJUGFYREWKUQJT-UHFFFAOYSA-N ;
	SMILES BrC(Br)(Br)Br;
Properties
Chemical formula	CBr4
Molar mass	331.627 g·mol−1
Appearance	Colorless to yellow-brown crystals
Odor	sweet odor
Density	3.42 g mL−1
Melting point	94.5 °C; 202.0 °F; 367.6 K
Boiling point	189.7 °C; 373.4 °F; 462.8 K decomposes
Solubility in water	0.024 g/100 mL (30 °C)
Solubility	soluble in ether, chloroform, ethanol
Vapor pressure	5.33 kPa (at 96.3 °C)
Magnetic susceptibility (χ)	-93.73·10−6 cm3/mol
Refractive index (nD)	1.5942 (100 °C)
Structure
Crystal structure	Monoclinic
Coordination geometry	Tetragonal
Molecular shape	Tetrahedron
Dipole moment	0 D
Thermochemistry
Heat capacity (C)	0.4399 J K−1 g−1
Std molar; entropy (S⦵298)	212.5 J/mol K
Std enthalpy of; formation (ΔfH⦵298)	26.0–32.8 kJ mol−1
Gibbs free energy (ΔfG⦵)	47.7 kJ/mol
Std enthalpy of; combustion (ΔcH⦵298)	−426.2–−419.6 kJ mol−1
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H302, H315, H318, H335
Precautionary statements	P261, P280, P305+P351+P338
NFPA 704 (fire diamond)	2 0 0
Flash point	noncombustible
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	56 mg kg−1 (intravenous, mouse); 100 mg kg−1 (oral, rat);
	NIOSH (US health exposure limits):
PEL (Permissible)	none
REL (Recommended)	TWA 0.1 ppm (1.4 mg/m3) ST 0.3 ppm (4 mg/m3)
IDLH (Immediate danger)	N.D.
Safety data sheet (SDS)	inchem.org
Related compounds
Other anions	Carbon tetrafluoride ; Carbon tetrachloride ; Carbon tetraiodide
Other cations	Silicon tetrabromide ; Germanium tetrabromide ; Tin(IV) bromide
Related alkanes	Dibromomethane; Bromoform; 1,1-Dibromoethane; 1,2-Dibromoethane; Tetrabromoethane;
	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

Carbon tetrabromide, CBr₄, also known as tetrabromomethane, is a bromide of carbon. Both names are acceptable under IUPAC nomenclature.

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