COMBUSTION •
LAB EQUIPMENT
C A
Direct Delivery
D
B
E
G
H
F
New
A Calorimeter Unit
B Base Unit
Copper cylinder, 100 x 75mm diameter, the bottom of which is in the shape of a shallow re-entrant cone which forms the top of the combustion chamber. A spiral copper heat exchanger extends upwards through the cylinder, its outlet normally being connected to a condenser unit using a filter pump to draw the products of combustion through the apparatus. The cylinder is housed in an aluminium outer jacket, 130 x 100mm diameter, with a drop on cover having apertures to pass the outlet of the heat exchanger, the wire stirrer and a bored and split rubber stopper, also supplied, to accommodate a thermometer. The outer jacket has three legs 40mm long which, when the calorimeter is standing on the base unit, provide the combustion chamber space and the sides of which take the form of a circular Perspex shield with removable door. Supplied WITHOUT thermometer or condenser unit.
B8H24841
each £146.99
E Inoculating Loops
Comprises a metal disc, 100mm diameter, with a boss for mounting on a 13mm retort rod. The unit forms the floor of the combustion chamber and has an inlet tubule, 6mm diameter, for the oxygen supply, and a pair of pillars carrying the low voltage igniter coil. Also incorporated is a moveable crucible support enabling the crucible to be raised up to the igniter coil from outside the assembled apparatus. Supplied WITHOUT retort stand, crucible or spirit lamp.
Nichrome wire with 2mm diameter loop formed at one end. For use with the Inoculating Loop Holder (Item C). Length: 50mm.
B8R00546
Gauge 32 SWG, Diameter 0.27mm
each £65.50
When flame testing for the detection of potassium ions, any sodium ions present mask the lilac colour with intense yellow, hence the presence of potassium may go undetected. However, on viewing the flame through the cobalt glass the presence of potassium is easily observed. Dimensions: 75 x 50 x 1mm. Direct Delivery – up to 10 days each £8.99
D Wire Holder Nickel plated brass with screw chuck which accepts wire or needles up to 0.56mm dia. (24swg).
B8F66652
pack 5 £4.11
F Nickel Chrome Wire Gauge 26 SWG, Diamter 0.46mm
B8R05726 B8R05737
C Cobalt Glass
B8A62133
B8A64580
125g reel £17.99 125g reel £19.99
G Deflagrating Spoon and Cap Steel cup and rod held by rubber in a dished aluminium cap. Length 350mm, diameter of cap: 88mm, diameter of cup: 18mm.
B8A60100
each £3.10
H Deflagrating/Combustion Spoon Heavy gauge stainless steel wire, for use in test tubes 150 x 25mm. Shaft shaped to prevent contact with wall. Length: 200mm, diameter of cup: 7mm.
B8A60094
each £2.35
each £2.05
www.philipharris.co.uk CYANMAGENTA YELLOW BLACK PANTONE 266 CV
0457UKEO15_PHESLEQ.pgs
457 13.01.2015
06:02