179418

Toluène

ACS reagent, ≥99.5%

• Formule linéaire : C₆H₅CH₃
• Numéro CAS: 108-88-3
• Poids moléculaire : 92.14
• Numéro Beilstein : 635760
• Numéro CE : 203-625-9
• Numéro MDL: MFCD00008512
• Code UNSPSC : 12352005
• eCl@ss : 39011102
• ID de substance PubChem : 329751592
• Nomenclature NACRES : NA.21

Propriétés

• Qualité: ACS reagent
• Niveau de qualité: 200
• Agence: suitable for EPA 1613
• Densité de vapeur: 3.2 (vs air)
• Pression de vapeur: 22 mmHg ( 20 °C); 26 mmHg ( 25 °C)
• Pureté: ≥99.5%
• Forme: liquid
• Température d'inflammation spontanée: 997 °F
• Limite d'explosivité: 7 %
• Impuretés: H₂SO₄, passes test (darkened); ≤0.003% S compounds; ≤0.030% water
• Résidus d'évap.: ≤0.0010%
• Couleur: APHA: ≤10
• Indice de réfraction: n/D 1.496 (lit.)
• Point d'ébullition: 110-111 °C (lit.)
• Pf: -93 °C (lit.)
• Densité: 0.865 g/mL at 25 °C (lit.)
• Application(s): microbiology
• Chaîne SMILES: Cc1ccccc1
• InChI: 1S/C7H8/c1-7-5-3-2-4-6-7/h2-6H,1H3
• Clé InChI: YXFVVABEGXRONW-UHFFFAOYSA-N

Description

Description générale

Toluene, a flammable liquid with a pungent odor, is widely employed as organic solvent. It is widely used as a precursor for synthesizing benzene and as a solvent in the paint industry. It has been reported to be a biotoxic solvent (toxic to many microorganisms at 0.1%v/v concentrations). Its anaerobic biodegradation to CO₂, by the denitrifying bacterium Thauera arornatica has been reported. It forms a syndiotactic polystyrene-toluene molecular compound. Crystal structure of this molecular compound has been investigated by X-ray diffraction studies.

Application

Toluene has been employed as an solvent for the asymmetric synthesis of propargylic alcohols via addition reaction of terminal alkynes with various aldehydes in the presence of an optically active reagent, N-methylephedrine. It may be used in the preparation of amine-capped gold nanocrystals. Toluene undergoes alkylation in the presence of modified ZSM (Zeolite Socony Mobil)-5-class zeolite catalysts to form p-xylene with high selectivity. When doped on graphene, it acts as an electron donor leading to alteration in graphene electrical properties.

Conditionnement

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Informations sur la sécurité

• Pictogrammes: GHS02,GHS08,GHS07
• Mention d'avertissement: Danger
• Mentions de danger: H225,H304,H315,H336,H361d,H373,H412
• Conseils de prudence: P202 - P210 - P273 - P301 + P310 - P303 + P361 + P353 - P331
• Classification des risques: Aquatic Chronic 3 - Asp. Tox. 1 - Flam. Liq. 2 - Repr. 2 - Skin Irrit. 2 - STOT RE 2 Inhalation - STOT SE 3
• Organes cibles: Central nervous system
• Code de la classe de stockage: 3 - Flammable liquids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): 39.9 °F - closed cup
• Point d'éclair (°C): 4.4 °C - closed cup