General Catalogue Chemistry - BECO Internacional LTDA.

667 500
Melting point determination device
After Thiele, with GL 18 screw fitting for
thermometer, with two side tubes, glass
661 095
Paraffin oil, 1 l
1000 ml, high-boiling, for use with the melting
point apparatus > 667 500
Equipment list
Measuring the surface tension
367 46
661 085
Melting point tubes
One fused end, set of 100, for > 667 500
Dimensions: 80 mm long, 2 mm dia.
382 48
Thermometer
Thermometer with mercury filling and glass
eyelet.
Range: - 10…+ 255 °C
Graduation: 1 K
Length: 30 cm
Diameter: 7 mm
Apparatus for measuring surface tension
Light-alloy ring with knife edge and suspended
from three threads. When the edge is dipped
into a liquid the surface tension can be determined
when withdrawing the ring again. The
force at which the ring loses contact with the
surface is equivalent to the surface tension of
the liquid.
Ring diameter: 6 cm
Quantity Description Cat. No.
1 Apparatus for measuring surface tension. . . . . . . . . . . . . . . 367 46
1 Precision dynamometer, 0.1 N. . . . . . . . . . . . . . . . . . . . . 314 111
1 Laboratory stand II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 76
1 Stand rod for Bunsen stand, 750 mm . . . . . . . . . . . . . . . . . 666 525
1 Stand base. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 02
1 Clamp with hook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301 08
Apparatus for measuring surface tension, complete setup
analysis methods
Melting point
Surface tension
LEYBOLD DIDACTIC · GENERAL CATALOGUE CHEMISTRY
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