Skip to content
General Purpose Solvents

Benzene AR/ACS

RA000165 CAS 71-43-2 AR/ACS

Identity

Product code
RA000165
CAS number
71-43-2
Grade
AR/ACS
Purity
99.5%
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 [% weight] 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 — —
Lead (Pb) Max 0.00002 % % —
Substance darkened by H2SO4 Passes test — —
Sulphur compounds (S) Max 0.005 % % —
Freezing point Min 5.2 °C °C —
Water Max 0.05 % % —
Acidity Max 0.0001 meq/g meq/g —
Residue on evaporation Max 0.001 % % —
Purity Min 99.5 % % GC
Identity Passes test — IR
Colour scale Max 10 APHA APHA —
Weight/ mL (20 °C) 0.877 - 0.878 g g —
Refractive index (20°C; 589 nm) (20 °C) 1.499 - 1.502 — —
Alkalinity Max 0.0001 meq/g meq/g —
Copper (Cu) Max 0.00002 % % —
Iron (Fe) Max 0.00005 % % —

8 grades of this substance are listed. Each grade is a separate product with its own specifications, pack sizes and documents.

Packaging

Pack size SKU
25 L RA000165-PK-25L
500 mL RA000165-PK-500ML
1 L RA000165-PK-1L
2.5 L RA000165-PK-2.5L