Products

Glassware Accessories

Air Thermometer
Air Thermometer
102

This 2" bulb is used as an accessory in many heat experiments when studying the expansion of liquids and gases. 
Connection Tube W Shape Connection Tube W Shape
1227-8
Tube OD 8mm, length 74mm,side tube 42mm
Single-way Capillary Stopcock, Straight Bore Single-way Capillary Stopcock, Straight Bore
with screw thread retaining device (polypropylene)
with standardized hollow key and plastic grip (polypropylene )
10303-2 nominal 2mm, bore dia. 1.6mm, tube O.D. 8mm, I.D. 2.2mm, length 180mm
10303-3 nominal 3mm, bore dia. 2.5, tube O.D. 9mm, I.D. 3mm, length 220mm
Glass Connector Glass Connector
208-2x2

Bend with arm 2 1/2X2 1/2 X 8MM
Bend 2x2, (for Automatic Burettes)
Condenser Condenser
302-0 Condenser, inner tube supported with rubber connection 250mm
302-1 Condenser, inner tube supported with rubber connection 300mm
302-2 Condenser, inner tube supported with rubber connection 400mm
302-3 Condenser, inner tube supported with rubber connection 500mm
Condenser, Leibig Condenser, Leibig
302-8 Condenser, Leibig, Borosilicate 100mm
302-9 Condenser, Leibig, Borosilicate 200mm
302-10 Condenser, Leibig, Borosilicate 300mm
302-11 Condenser, Leibig, Borosilicate 400mm
302-12 Condenser, Leibig, Borosilicate 500mm
Condenser Adapter Condenser Adapter
302-20
Condenser Adapter, Bent
302-21 Condenser Adapter, Straight
Cartesian Diver Cartesian Diver
305

A all glass constructed Cartesian Diver with a red band to make the diver more visible
Cartesian Diver Unit Cartesian Diver Unit
305-1

Supplied with a Diver and Hydrometer Jar.  A diver is placed in a cylinder of water.  Pressure on the cap forces water into the diver causing it to sink.
Drying Tubes Drying Tubes (Flint Glass)
401-1 Straight, with one bulb. . .100 mm
401-2 Straight, with one bulb. . .150 mm
401-3 Straight, with one bulb. . .200 mm
402-1 "U" ... 100mm
402-2 "U"...150mm
402-3 "U"...200mm
403-1 "U" with side arm...100mm
403-2 "U" with side arm...150mm
403-3 "U" with side arm...200mm
Electrolysis Apparatus, Collecting Tubes and Platinum Electrodes Electrolysis Apparatus, Collecting Tubes and Platinum Electrodes
501 

This Hoffman form electrolysis apparatus is designed for student experiments in electrolysis for precise quantitative measurements. This durable, easy-to-use kit features two telescoping gas collecting tubes graduated to 10mL. Plus, high quality platinum electrodes.
Electrolysis Apparatus Electrolysis Apparatus
501-1

Ungraduated tubes
Collecting Tubes & Platinum Electrodes - An inexpensive yet functional electrolysis apparatus! The two 12-5/8" arms of the U-tube are un-graduated and open at the top. Rubber tubes and pinch clamp are used at the open ends to retain the gases. Electrolysis Apparatus, with Un-graduated Tubes
Eudiometer Eudiometer
503-1 50 ml, Subdivisions at 0.1 ml
503-2 100 ml, Subdivisions at 0.2 ml
Harbottle Apparatus Harbottle Apparatus
791

The Harbottle helps students understand the meaning of fluid pressure and pressure reduction.  A Harbottle is a round, glass, container with a balloon stretched over its opening and a hole in the flattened base that is fitted with a rubber stopper.  Students are amazed when the balloon remains inflated inside the bottle even though it is not tied off or sealed.  
Hydraulic Press Demonstration Hydraulic Press Demonstration
803

The transmission and multiplication of forces through a hydraulic system can be observed in this glass model.
The force piston has a handle and a concave top for holding weights.
Inoculating Needles Inoculating Needles
903-1 Glass handle and Nichrome needle, 24 gauge x 7.5 cm long.
903-5 Glass handle, Platinum needle is 28 gauge x 5 cm long.
903-6 Glass handle, Platinum needle is 28 gauge x 4 cm long.
903-7 Glass handle , Platinum needle with loop 28 gauge x 5 cm long.
Connection Tube T Shape Connection Tube T Shape
Item # Tube O.D.
(mm)
Max. Length (mm) Side Tube length
(mm)
1224-6 6 90 45
1224-8 8 100 50
1224-9.5 9.5 120 60
1224-12 12 150 75
Connection Tube Y Shape Connection Tube Y Shape
Item # Tube O.D.
(mm)
Max. Length (mm) Side Tube length
(mm)
1225-6 6 90 45
1225-8 8 100 50
1225-9.5 9.5 120 60
1225-12 12 150 75
Connection Tube U Shape Connection Tube U Shape
Item # Tube O.D.
(mm)
Max. Length (mm) Side Tube length
(mm)
1226-6 6 90 45
1226-9.5 9.5 120 60
Dropper Dropper
Quality black rubber bulb on glass tube, available
with straight or curved tip. In two sizes.
Boxed per dozen, 100doz/case.
1300-5A Straight
1300-5B Curved
Osmosis Apparatus Osmosis Apparatus
1501-3 
Single Thistle Tube with Membrane
Osmosis Apparatus Osmosis Apparatus
1501-4  Double Thistle Tube with Membrane
Osmosis Apparatus Osmosis Apparatus
1501-6  Bladder Form with Glass Tube
A glass tube 45cm long with a membrane is attached to one end.  When the membrane is filled with sugar solution and immersed in water, the liquid in the tube will rise, showing osmotic pressure in a clear demonstration. Instructions included
droper Dropping Pipette
1601-4 Length 4", with 5ml bulb, 1dz/pk
1601-5 Length 5", with 5ml bulb, 1dz/pk
1601-6 Length 6", with 5ml bulb, 1dz/pk
1601-7 Length 7", with 5ml bulb, 1dz/pk
1601-8 Length 8", with 5ml bulb, 1dz/pk
1601-10 Length 7", with 5ml bulb, 1dz/pk
1601-12 Length 8", with 5ml bulb, 1dz/pk
Pressures Syringe Pressures Syringe
1602

Demonstrates that pressure is transmitted uniformly in all directions.  Unit consists of 2" diameter glass bulb and plunger. The bulb has a series of holes in a plane.  When pressure is applied to the plunger water is expelled at an equal distance in all directions.  Instructions included.
Stir Rod  Stir Rod  
Flint Glass with Polished Ends
1900-6 6" 150mm L. x 5mm OD
1900-8 8" 200mm L. x 5mm OD
1900-10 10" 255mm L. x 5mm OD
1900-12 12" 305mm L. x 5mm OD
Funnel Tube, Thistle Tube Funnel Tube, Thistle Tube
Flint Glass
604-2 Funnel Tube, semi-micro, 6"x4mm stem
2001-1 Thistle Tube, 7mm x 300mm stem
2001-2 Thistle Tube, 7mm x 400mm stem
2001-3 Thistle Tube, 7mm x 150mm stem
Venturi Tube Venturi Tube
2201

A  glass tube 7" long and 3/4" in diameter with a constriction at the center, and three vertical tubes.  When manometers are attached to the three openings the lower pressure at the constriction becomes evident.  A verification of Bernoulli's principle.  
Steam Generator Water Trap for Steam Generator
2301

Designed for use with a steam generator or boiler to trap condensed steam. The unit is made of Pyrex glass and is 15.5 cm long.