32212

Benzene

puriss. p.a., reag. Ph. Eur., ≥99.7%

• Empirical Formula (Hill Notation): C₆H₆
• CAS Number: 71-43-2
• Molecular Weight: 78.11
• Beilstein: 969212
• EC Number: 200-753-7
• MDL number: MFCD00003009
• PubChem Substance ID: 329754103

Properties

• Agency: ISO; USP/NF; reag. Ph. Eur.
• Quality Level: 100
• vapor density: 2.77 (vs air)
• vapor pressure: 166 mmHg ( 37.7 °C); 74.6 mmHg ( 20 °C)
• grade: puriss. p.a.
• assay: ≥99.7%
• form: liquid
• autoignition temp.: 1043 °F
• expl. lim.: 8 %
• impurities: ≤0.0002% free alkali (as NH₃); ≤0.0004% free acid (as HCl); ≤0.001% non-volatile matter; ≤0.03% water (Karl Fischer); ≤1 ppm thiophene
• color: APHA: ≤10
• refractive index: n20/D 1.5000-1.5020; n20/D 1.501 (lit.)
• bp: 80 °C (lit.)
• mp: 5.5 °C (lit.)
• transition temp: solidification point ≥5.2 °C
• density: 0.874 g/mL at 25 °C (lit.)
• cation traces: Al: ≤0.5 mg/kg; B: ≤0.02 mg/kg; Ba: ≤0.1 mg/kg; Ca: ≤0.5 mg/kg; Cd: ≤0.05 mg/kg; Co: ≤0.02 mg/kg; Cr: ≤0.02 mg/kg; Cu: ≤0.01 mg/kg; Fe: ≤0.1 mg/kg; Mg: ≤0.1 mg/kg; Mn: ≤0.02 mg/kg; Ni: ≤0.02 mg/kg; Pb: ≤0.01 mg/kg; Sn: ≤0.1 mg/kg; Zn: ≤0.01 mg/kg
• SMILES string: c1ccccc1
• InChI: 1S/C6H6/c1-2-4-6-5-3-1/h1-6H
• InChI key: UHOVQNZJYSORNB-UHFFFAOYSA-N

Description

General description

Benzene is widely used as a solvent. Its emission from various tropical biomass species has been investigated. GC/MS determination indicated that benzene is one of the major contributor for biomass burning emission factor. Its electronic spectra has been investigated by CNDO method. Microwave spectra of isotopic 1:1 clusters of benzene with water (H₂O, D₂O and HDO) has been investigated.

Application

Benzene may be employed in the preparation of carbon fibers, via pyrolysis along with hydrogen at about 1100°C. It was used in the preparation of highly conductive molecular junctions. These junctions were fabricated by direct binding of benzene molecules to the Pt electrodes without using anchoring groups.

Packaging

1, 6×1, 2.5 L in glass bottle

Other Notes

Pertains only in Germany: unversteuert

Safety Information

• Pictograms: GHS02,GHS07,GHS08
• Signal Word: Danger
• Hazard Statements: H225 - H304 - H315 - H319 - H340 - H350 - H372 - H412
• Precautionary Statements: P210 - P273 - P301 + P310 - P303 + P361 + P353 - P305 + P351 + P338 - P331
• Hazard Classifications: Aquatic Chronic 3 - Asp. Tox. 1 - Carc. 1A - Eye Irrit. 2 - Flam. Liq. 2 - Muta. 1B - Skin Irrit. 2 - STOT RE 1
• Target Organs: Blood
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 3
• Flash Point(F): 12.2 °F
• Flash Point(C): -11 °C