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General Purpose Solvents

BENZENE GC Reference Standard

RA003778 CAS 71-43-2

Identity

Product code
RA003778
CAS number
71-43-2
Molecular formula
C6H6
Molecular weight
78.11

Classification

Technical Data

Properties

PropertyValueUnit
Physical state at 20 °C Liquid —
Vapour density 2.8 —
Density [g/cm3] 0.8765 g/cm3 g/cm3
Relative density, gas (air=1) 0.88 —
Solubility in water 0.180 g/100 mL g/100 mL
Explosion limits - upper [%] 8.00 % %
Explosion limits -lower [%] 1.30 % %
Colour Clear Colorless —
Odour Aromatic odor —
Melting point/ Freezing point [°C] 5.5 °C °C
Auto-ignition temperature [°C] 562 °C °C
Flammability (solid, gas) Flammable —
Flash point [°C] -11 °C °C
Boiling point [°C] 80.0 - 80.2 °C °C
Vapour pressure [20°C] 99.5 hPa hPa

These are recorded catalogue property values. Product specification limits, where available, are listed under Specifications.

Specifications

ParameterSpecificationUnit Method
Appearance Clear Colorless Liquid — —
Refractive index (20°C; 589 nm) (20 °C) 1.499 - 1.502 — —
Traceablility Traceable to USP Reference standard — —
Purity Min 99.8 % % GC
Potency Reported on COA — —
Identification Conforms to structure — IR
Identification (1H NMR method) Conforms to structure — —
Identification (GC-MS method) Passes test — —
Colour scale Max 10 APHA APHA —
Residue on evaporation Max 0.0005 % % —
Water Max 0.03 % % KF

Method names in parentheses (for example "GC method") identify the analytical technique applied to that parameter; they are not product grades.

Packaging

Pack size SKU
20 mL RA003778-PK-20ML
100 mL RA003778-PK-100ML