Tetraethylmethane

Tetraethylmethane is a branched alkane with 9 carbon atoms. It is a highly flammable and volatile liquid at room temperature. It is one of the isomers of nonane.

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Tetraethylmethane

Names
Preferred IUPAC name 3,3-Diethylpentane[1]
Identifiers
CAS Number	1067-20-5 Y
3D model (JSmol)	Interactive image
Abbreviations	Et4C
ChemSpider	13402 Y
ECHA InfoCard	100.151.290
PubChem CID	14020
UNII	K2SWY952L9 Y
CompTox Dashboard (EPA)	DTXSID1073941
InChI InChI=1S/C9H20/c1-5-9(6-2,7-3)8-4/h5-8H2,1-4H3 Y Key: BGXXXYLRPIRDHJ-UHFFFAOYSA-N Y
SMILES CCC(CC)(CC)CC
Properties
Chemical formula	C9H20
Molar mass	128.259 g·mol−1
Appearance	Colourless liquid
Odor	Odourless
Density	724 mg mL−1
Melting point	−34 to −30 °C; −29 to −22 °F; 239 to 243 K
Boiling point	145.8 to 146.6 °C; 294.3 to 295.8 °F; 418.9 to 419.7 K
Henry's law constant (kH)	1.5 nmol Pa−1 kg−1
Thermochemistry
Heat capacity (C)	278.2 J K−1 mol−1
Std molar entropy (S⦵298)	333.4 J K−1 mol−1
Std enthalpy of combustion (ΔcH⦵298)	−6.1261–−6.1229 MJ mol−1
Hazards
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H225, H226
Precautionary statements	P210, P233, P240, P241, P242, P243, P280, P303+P361+P353, P370+P378, P403+P235, P501
NFPA 704 (fire diamond)	0 3 0
Related compounds
Related alkanes	Neopentane 2,2-Dimethylbutane 2,3-Dimethylbutane Triptane Tetramethylbutane 2,2,4-Trimethylpentane 2,3,3-Trimethylpentane 2,3,4-Trimethylpentane Tetra-tert-butylmethane 2,3-Dimethylhexane 2,5-Dimethylhexane
Related compounds	Tetraethylsilane Tetraethylgermanium Tetraethyltin Tetraethyllead
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

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