179965

Toluene

Laboratory Reagent, ≥99.3%

• Formula condensata: C₆H₅CH₃
• Numero CAS: 108-88-3
• Peso molecolare: 92.14
• Beilstein: 635760
• Numero CE: 203-625-9
• Numero MDL: MFCD00008512
• Codice UNSPSC: 12191501
• eCl@ss: 39011102
• ID PubChem: 329751599

Proprietà

• Grado: Laboratory Reagent
• Livello qualitativo: 100
• Densità del vapore: 3.2 (vs air)
• Tensione di vapore: 22 mmHg ( 20 °C); 26 mmHg ( 25 °C)
• Saggio: ≥99.3%
• Stato: liquid
• Temp. autoaccensione: 997 °F
• Limite di esplosione: 7 %
• dilution: (for analytical testing)
• Impurezze: ≤0.05% water
• Residuo dopo evaporazione: ≤0.005%
• Indice di rifrazione: n/D 1.496 (lit.)
• P. ebollizione: 110-111 °C (lit.)
• Punto di fusione: -93 °C (lit.)
• Densità: 0.865 g/mL at 25 °C (lit.)
• applicazioni: microbiology
• Stringa SMILE: Cc1ccccc1
• InChI: 1S/C7H8/c1-7-5-3-2-4-6-7/h2-6H,1H3; YXFVVABEGXRONW-UHFFFAOYSA-N

Descrizione

Descrizione generale

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 syndiotactic polystyrene-toluene molecular compound. Crystal structure of this molecular compound has been investigated by X-ray diffraction studies.

Applicazioni

Toluene may be used as a solvent in the following studies:

• Preparation of 4-arm polylactide-based (PLA) star oligomer.
• Transformation of C₆ sugar monomers/oligomers (glucose, maltose, and β-cyclodextrins) to levulinic acid in the presence of an acid catalyst.

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.

Informazioni sulla sicurezza

• Pittogrammi: GHS02,GHS08,GHS07
• Avvertenze: Danger
• Indicazioni di pericolo: H225,H304,H315,H336,H361d,H373,H412
• Consigli di prudenza: P202 - P210 - P273 - P301 + P310 - P303 + P361 + P353 - P331
• Classi di pericolo: Aquatic Chronic 3 - Asp. Tox. 1 - Flam. Liq. 2 - Repr. 2 - Skin Irrit. 2 - STOT RE 2 Inhalation - STOT SE 3
• Organi bersaglio: Central nervous system
• Codice della classe di stoccaggio: 3 - Flammable liquids
• Classe di pericolosità dell'acqua (WGK): WGK 3
• Punto d’infiammabilità (°F): 39.9 °F - closed cup
• Punto d’infiammabilità (°C): 4.4 °C - closed cup