3,3-Diméthylpentane

3,3-Diméthylpentane
Image illustrative de l’article 3,3-Diméthylpentane
Image illustrative de l’article 3,3-Diméthylpentane
Représentations du 3,3-diméthylpentane
Identification
Nom UICPA 3,3-Diméthylpentane
No CAS 562-49-2
No ECHA 100.008.392
No CE 209-230-8
PubChem 11229
SMILES
InChI
Propriétés chimiques
Formule C7H16  [Isomères]
Masse molaire[1] 100,201 9 ± 0,006 7 g/mol
C 83,91 %, H 16,09 %,
Propriétés physiques
fusion −135 °C [2]
ébullition 86 °C [2]
d'auto-inflammation 320 °C [2]
Point d’éclair −15 °C [2]
Limites d’explosivité dans l’air 0,96,9 %vol
40285 g·m-3 [2]
Point critique 2 946 kPa [3]
Thermochimie
S0gaz, 1 bar 398,02 J·mol-1·K-1 [4]
S0liquide, 1 bar 305,6 J·mol-1·K-1 [4]
ΔfH0gaz −201,5 kJ·mol-1 [4]
ΔfH0liquide −234,6 kJ·mol-1 [4]
Δfus 7,067 kJ·mol-1 à −134,95 °C [4]
Δvap 33,15 kJ·mol-1 à 25 °C
29,62 kJ·mol-1 à 86,05 °C [4]
Cp 187,44 J·mol-1·K-1 (70,98 °C, gaz)
214,8 J·mol-1·K-1 (25 °C, liquide) [4]
PCI −4 806,7 kJ·mol-1 [4]
Précautions
SGH[6]
SGH02 : InflammableSGH07 : Toxique, irritant, sensibilisant, narcotiqueSGH08 : Sensibilisant, mutagène, cancérogène, reprotoxiqueSGH09 : Danger pour le milieu aquatique
Danger
H225, H304, H315, H336 et H410
SIMDUT[7]
B2 : Liquide inflammable
B2,
Transport
   1206   

Unités du SI et CNTP, sauf indication contraire.

Le 3,3-diméthylpentane est un hydrocarbure saturé de la famille des alcanes de formule C7H16. Il est un des neuf isomères de l'heptane.

Notes et références

  1. Masse molaire calculée d’après « Atomic weights of the elements 2007 », sur www.chem.qmul.ac.uk.
  2. a b c d et e Entrée « 3,3-Dimethylpentan » dans la base de données de produits chimiques GESTIS de la IFA (organisme allemand responsable de la sécurité et de la santé au travail) (allemand, anglais), accès le 16 avril 2009 (JavaScript nécessaire)
  3. (en) Iwona Owczarek et Krystyna Blazej, « Recommended Critical Pressures. Part I. Aliphatic Hydrocarbons », J. Phys. Chem. Ref. Data, vol. 35, no 4,‎ , p. 1461 (DOI 10.1063/1.2201061)
  4. a b c d e f g et h « Pentane, 3,3-dimethyl- », sur nist.gov (consulté le ).
  5. (en) Carl L. Yaws, Handbook of Thermodynamic Diagrams : Organic Compounds C8 to C28, vol. 2, Huston, Texas, Gulf Pub. Co., , 396 p. (ISBN 0-88415-858-6)
  6. Numéro index 601-008-00-2 dans le tableau 3.1 de l'annexe VI du règlement CE N° 1272/2008 (16 décembre 2008)
  7. « Diméthyl-3,3 pentane » dans la base de données de produits chimiques Reptox de la CSST (organisme québécois responsable de la sécurité et de la santé au travail), consulté le 25 avril 2009

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