Version 10.0 – July 2014
11
A batch of commercial benzil was ground, homogenised and dried.
This material is intended for use in checking and calibrating apparatus used for the
determination of melting points of samples in glass capillary tubes.
Certified Value
Liquefaction Point ......... 94.90 ± 0.24 °C
A batch of commercial naphthalene was ground, homogenised and dried.
This material is intended for use in checking and calibrating apparatus used for the
determination of melting points of samples in glass capillary tubes.
Certified Value
Liquefaction Point ......... 80.34 ± 0.22 °C
A batch of commercial 4-nitrotoluene was purified by fractional crystallisation, then
ground, homogenised and dried.
This material is intended for use in checking and calibrating apparatus used for the
determination of melting points of samples in glass capillary tubes.
Certified Value
Liquefaction Point ......... 51.66 ± 0.18 °C
A commercial supply of phenyl salicylate was obtained and the purity of the material
was assessed by High Performance Liquid Chromatography.
This material is intended for use in checking and calibrating apparatus used for the
determination of melting points of samples in glass capillary tubes.
Certified Value
Liquefaction Point ......... 41.82 ± 0.30 °C