TEST TUBES 6351
With horizontal side arm bent downwards at 45 Degree, size 150 mm in height and 24 mm, in diameter approx.

TEST TUBES 6352
Graduated, medium wall, rimless, Borosilicate glass, nominal graduations are clearly marked in white colour.

TEST TUBE HOLDER 6353
Wood, with spring steel for closing jaws.
a). length 18 cm, accepts tubes 11-19mm.
b). length 26 cm, accepts tubes 11- 30 mm.

TEST TUBE HOLDER 6354
Metal, with sliding collar and wooden handle, accepts tubes 22- 32 mm.

TEST TUBE HOLDER 6355
Strong spring clip, comprising stout metal strip of aluminium, in wooden handle, accepts tubes 18- 30 mm. A. As above, but strip of brass.

TEST TUBE HOLDER 6356
Plated spring steel wire holder with finger grip. The jaws will accept tubes up to 40 mm. diameter and their alignment is maintained by a wire collar. Overall length 16 cm.

CRUCIBLE TONGS, WITH BOW 6357
Nickel / Black plated steel wire, rolled flat at joint, jaws corrugated on inside, with bow.

TONG MERCURY 6358
Nickel plated steel, for lifting globules of mercury. Length 20 cms. approx.

TONG BEAKER 6359
For the convenient and safe handling of beaker containing hot solutions and for pouring out the contents. The jaws are asbestos covered to ensure firm grip. Overall length of tong 30 cms. approx. Made of stainless steel A. As above but jaws silicone covered.

TONG FLASK SAFETY 6360
Stainless steel, with asbestos lined rectangular jaws giving an extremely firm grip to flasks of any shape from 100- 2000 ml. capacity. Overall length of tong 30 cms. approx.

HOFFMANN VOLTAMETER 6361
For demonstration of the decomposition of water, determination of chemical composition by electrolysis and with applications in the evaluation of the electro chemical equivalent of hydrogen. For the electrolysis of water, platinum electrodes are used and for the electrolysis of ammonia or hydrochloric acid carbon electrodes are used. The electrodes, available separately, are mounted in rubber stopper for insertion into the open ends of the VOLTAMETER limbs. This method, in addition to being convenient, obviates the use of fragile connections, such as platinum wire loops fused through the limbs. The glass unit has two connected limbs, each of approximately 50 ml. capacity, integral with reservoir tube and funnel shaped bulb, with a stopcock at the top of each limb for use on 12Volt D.C. supply.
a. Voltameter, glass unit only, graduated, each limb 0 to 50x0.2 ml. but without stand. i) Neutral glass , ii) Borosilicate glass.
b. Metal stand with mounts for giving support to cross limb and vertical limbs for above.
c. Carbon electrodes, in rubber stoppers approx. 110mm. long in protection tube.
d. Pair of platinum electrodes with rubber stopper and protection tube.
e. Power supply 12Volts DC

‘U’ TUBE 6362
For the visual observation of the migration of coloured ions. Comprises central loading tube with funnel attached to a 'U' tube and two carbon electrodes with screw terminals. Sizes 19.5cms. height and 6.5cms width.

SALT BRIDGE 6363
For use in experiments involving the measurement of cell EMF under conditions of forward. zero and reverse current flow . The bridge comprises an inverted 'U' tube with its ends closed by sintered discs. This apparatus provides a more effective method of making reversible cells than the wet filter paper or agar gel methods. Arm diameter 13mm., width 8cms and overall height 10 cms.

TUBING SODA GLASS 6364
Supplied in length of 0.5 meter approx. Pack of 30

TUBING NEUTRAL GLASS 6365
Neutral glass, light wall, heat and chemical resisting. Supplied in length of 0.5 meter approx. Pack of 30.

TUBING CORNING GLASS 6366
Corning glass, light wall, length of 1.5 meter, ±25 mm.

TUBING CAPILLARY 6367
Soda glass. Supplied in length of 0.5 meter approx. Pack of 10.

GLASS RODS 6367-A
Dia. 4mm to 10mm.

TUBES DELIVERY 6368
Soda glass, outside diameter 6 mm. Set of 6.

TUBES DELIVERY SET 6369
Soda, glass, outside diameter 6mm
Set of four comprising one of each:
• Short, straight, 70 mm. length
• Long, straight, 170 mm. length
• 90º bend, arms 60mm and 160 mm.
• 90º bend, arms 6 0 mm and 90mm.

TUBES COMBUSTION 6370
Borosillicate glass, open both ends. For oxidisation and reduction of chemical substances. Length 30cms.

TUBES COMBUSTION, NUFFIELD 6371
With short glass tube fused to one end to enable the collection of reacting gases. Suitable for the reduction of metal oxides with hydrogen. Dimension 150 mm. length and 15 mm diameter.

TUBING RUBBER RED 6372
Extra soft quality, conforms to standard specifications, resistant to acids, alkalis. Pack of 10 meters.

TUBING RUBBER RED 6373
Ordinary pressure, extra soft thickness, conforms to standard specifications.

TUBING RUBBER RED 6374
High pressure, extra soft quality, conforms to standard specifications.

TUBING RUBBER SILICON 6375
Highly elastic, non- toxic, heat resistance from -50ºC to 250ºC repeatedly autoclavable, flexible odorless and transparency of the tubes allows visibility of the flowing fluid.

TUBING LATEX 6376
Seamless, translucent very flexible, suitable for connections to glass. Length 92cms.

TUBING PVC 6377
Transparent, strong, very flexible, suitable for connections to tape.

TUBING CONNECTOR 6378
Made of glass. Three way T- Shape, Y-Shape, U-Shape, riffled end for rubber tubing, outside diameter 8 mm. Available in polypropylene also.
TUBING CONNECTOR 6379
Made of polypropylene. Three way Y- shape, riffed end for rubber tubing. 8 mm. outside diameter. Available in glass also.

GAS TAPS 6380
Made of brass, lever handle, spring loaded, locking arrangement to ensure rotation does not go beyond 90 Degree standard 3 mm. bore, inlet 1/4 inches BSP, flange dia. 54 mm. with three screws to fix on bench or any other surface. Designed to operate at pressure upto 2 psi ( 0.14 kg/ cm2 ) suitable for town gas supply or bottled LPG., elegant design, painted with special scratch and chemical resistant paint / chrome plated.
A . One way
B. Two way
C. Three way
D. Four way.

WATER TAP, SWAN NECK 6381
Made of brass, chrome finish, inlet tail is threaded 1/2 inch. BSP outlet tube is made out of 15 mm. brass tubing which is coupled to the tap standard by means of a sleeve not allowing the neck to swivel or be locked in a desired position. Leakproof operation, bench mounting.
A. Single way
B. Two way
C. Three way.

WATER TAP, WALL TYPE 6382
Made of brass, chrome finish, inlet tail is threaded 1/2 inch. BSP leakproof operation, suitable for wall mounting.
A. Two way
B. Three way