Identification

Numero CAS

78-78-4

Nom scientifique (FR)

2-Méthylbutane

Nom scientifique (EN)

2-methylbutane

Autres dénominations scientifiques (FR)

Ethyldiméthylméthane; Isopentane

Autres dénominations scientifiques (Autre langues)

isopentane ; ethyl dimethyl methane ; isoamyl hydride ; 1,1,2-trimethylethane ; butane, 2-methyl- ; dimethylethylmethane ; exxsol isopentane s ; exxsol isopentane t ; iso-pentane ; isoamylhydride ; isopropentane

Code EC

201-142-8

Code SANDRE

2682

Number CIPAC

-

Formule chimique brute

\(\ce{ C5H12 }\)

Code InChlKey

QWTDNUCVQCZILF-UHFFFAOYSA-N

Code SMILES

C(CC)(C)C

CLP classification

Type de classification

Harmonisée

ATP insertion

CLP00

Description de la classification

Classification harmonisée selon réglement 1272/2008 ou CLP

Hazard statements
Hazard statement - Code H224
Hazard statement - Text Liquide et vapeurs extrêmement inflammables
Hazard class(es) Liquides inflammables
EU hazard label -
Specific concentration limits -
M factor -
Acute toxicity estimate -
ECHA sheet
ECHA sheet

Regulations

Generalities

Poids moléculaire

72.15 g/mol

Parameters table

Parameters table
Value name Value Temperature Pressure Granulometry Humidity Guideline ineris method Commentary Source
Hydrosolubilité 47.8 mg.L-1
mesurée
UNEP p.29
Densité 0.62 - UNEP p.29
Pression de vapeur 91800 Pa
mesurée à 25°C
UNEP p.29
Point de fusion -159.9 °C UNEP p.29
Coefficient de partage octanol/eau (Log Kow) 2.72 -
calculé
UNEP p.29
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Matrixes

Terrestrial environment

Parameters table
Value name Value Temperature Pressure Granulometry Humidity Guideline ineris method Commentary Source
Coefficient de partage carbone organique/Eau (Koc) 60.7 L.kg-1 Calcul EPA
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Persistence

Biodegradability

Parameters table
Value name Value Temperature Pressure Granulometry Humidity Guideline ineris method Commentary Source
Biodégradabilité facilement biodégradable -
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Abiotic degradability

Parameters table
Value name Value Temperature Pressure Granulometry Humidity Guideline ineris method Commentary Source
Photolyse 2.65 jour
calculé
UNEP p.29
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Bioaccumulation

Aquatic organisms

Organismes aquatiques
ineris name Specie Value Trofic level Taxon Matrix Life stage Effect Detailed effect Duration of exposure ineris method Guideline Commentary Source
Bioaccumulation BCF 25 -
calculé
UNEP p.29
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Accidental values

Other accidental thresholds

Other accidental thresholds
ineris name Duration Value Source Status state Commentary
PAC-1 60 min 3000 ppm EHSS (2018) Final
TLV-TWA (pentane, all isomers) x 3, TEEL-1 x 11, TEEL-2 x 6 (See white paper)
PAC-2 60 min 33000 ppm EHSS (2018) Final
TLV-TWA (pentane, all isomers) x 3, TEEL-1 x 11, TEEL-2 x 6 (See white paper)
PAC-3 60 min 200000 ppm EHSS (2018) Final
TLV-TWA (pentane, all isomers) x 3, TEEL-1 x 11, TEEL-2 x 6 (See white paper)
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Regulatory values

Valeurs réglementaires
ineris name Value Source Commentary Critical effect retained Status state Duration of exposure Environment Exposure source Factor Management context Age-Dependent Adjustments Factors ADAF - Age range ADAF - Value ADAF - URL
VLEP 8h 1000 ppm INRS (2024)
Valeur limite réglementaire indicative
Final Air Lieux de travail
VLEP 8h 3000 mg.m-3 INRS (2024)
Valeur limite réglementaire indicative
Final Air Lieux de travail
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Hazards

Hazard values

Valeurs de danger
ineris name Specie Value Trofic level Taxon Matrix Life stage Effect Detailed effect Duration of exposure ineris method Guideline Commentary Source
CL/CE50 8.26 mg.L-1 Algue UNEP p.29
CL/CE50 2.3 mg.L-1 Invertebré UNEP p.29
CL/CE50 11.26 mg.L-1 Poisson UNEP p.29
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