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Product -> Heat

Starlac manufacturer, exporter of Heating Lab Instruments like Linear Expansion Apparatus, Steam Engine Model, Hope's Apparatus, Calorimeters, Ring and Ball, Bar and Gauge, Thermocouple, Syringe Kit, Charles Law Kit, Turbine/Pump Unit.

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Set Of Specific Heat Cylinders
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Set Of Specific Heat Cylinders   (HT-1532)

Equal in size. It consists of six cylinders each of size 38 x 9.5 mm. One each Copper, Lead, Brass, Iron, Zinc and Aluminium.


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Metal Rivets
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Metal Rivets   (HT-1533)

Used for specific gravity heat experiments. Lead is supplied as pallets, other metal as rivets, pack of 250gms supplied in plastic boxes.
(a) Aluminium (b) Brass (c) Copper (d)Iron (e)Lead.


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Continuous Flow Calorimeter
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Continuous Flow Calorimeter   (HT-1534)

For electric equivalent of heat of liquids. A glass tube, 360mm long, containing manganin spiral heating element with screw terminal at each end, is connected to inlet and outlet cylindrical vessels, each having a tubule for thermometer. The inlet system has a long vertical vent tube to allow air bubbles in the incoming water to escape. Mounted on wooden base, but without constant level tank or thermometer.


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Constant Level device
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Constant Level device   (HT-1535)

Comprises a metal vessel 100 x 75 mm diameter with inlet, outlet and overflow tubes. A rod is attached to fit into a boss head on stand. To be used for Cat No. P-2395, but supplied without stand.


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Food Calorimeter
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Food Calorimeter   (HT-1536)

It is used to determine the absolute heat of combustion of
foods (calorific values). It may also used to find out relative
values of heat of combustion of a series of foods by
comparing the rise of temperature of a fixed volume of
water when a constant mass of a substance is burnt
completely.

Apparatus Comprises of two assemblies:
a) Calorimeter Unit b) Base Unit
The Calorimeter unit carries heat exchanger unit and base
unit has crucible holder, ignition system etc. etc.

a) Calorimeter Unit
Comprises of a glass water jacket 150 x 80 mm (Ht x dia)
surrounding a combustion chamber integral with it and open
at its base. This combustion chamber is connected to a
copper spiral heat transfer tube. The upper end of this tube
passes through a hole in the lid on top and when in use is
connected to a filter pump to draw the products of
combustion through the copper spiral. A wire stirrer also
passes through the cover and a hole with a bored rubber
stopper is provided to accommodate a thermometer,
Supplied complete with thermometer -5 to + 50° C x 0.10C
(Mercury in glass)

b) Base Unit
Metal disc about 100 mm dia with a boss for mounting on
12mm retort rod (without rod). The unit works as the base
of the combustion chamber and has inlet tubule 6 mm
diameter for oxygen supply (oxygen supply is necessary to
completely bum the food) and pair of pillars carrying low
voltage igniter coil. Also having a moveable crucible support
to enable the crucible to raise to the level of igniter coil
from outside the assembled apparatus Supplied without
retort stand, crucible or spirit lamp.

Spare and Accessories
Spare borosilicate glass calorimeter jacket
(150 x 80mm, L x Dia) (HT-1536/1)
Spare igniter coil pack of 5 PCS.(HT-1536/2)
Nickel Crucible, one PC.(HT-1536/3)
Retort stand & base: Tripod 'A' base with rod(HT-1536/4)
Spirit lamp for volatile samples(HT-1536/5)
Low Voltage Supply Unit 12 V: PI. see Power Supply Section.
Oxygen Gas supply with regulator: To be obtained locally.


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Searle's Thermal Conductivity of Copper Apparatus
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Searle's Thermal Conductivity of Copper Apparatus   (HT-1537)

Comprising copper bar 300 x 25 mm (L x D), one end of which has steam chamber connected with inlet and outlet tubes, other end having spiral tube for a water to flow through. Two thermometer support tubes 75 mm apart, fixed to the surface of the bar allows measurement of temperature of a bar. Temperature at inlet and outlet of water is also measured. The whole apparatus has insulating bed surroundings and mounted in a case wi^ removable front. Supplied without thermometers.

Same as above, but copper bar 300 x38mm (HT-1537/1)

Accessories
a) Thermometer for bar: 10 to 105°C x 0.20C : 2 PCS
b) Thermometer for Water : -5 to 50° x 0.20°C : 2 PCS
c) Constant Level Tank
d) Steam Boiler: Copper.


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Thermal Conductivity of Copper Apparatus   (HT-1538)

Electrically heated, specifications same as P-2405 but with copper bar heated electrically by an electric element rated 72 W at 12 V. Electrical connections via 4 mm sockets.

Spare Parts: Heating Element: 72 W, 12 V (HT-1538/1)

Accessories: Same as in and 12V, 6A d.c. power supply.


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Thermal Conductivity Apparatus Lee’s and Charlton's
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Thermal Conductivity Apparatus Lee’s and Charlton's   (HT-1539)

To determine thermal conductivity of bad conductors in form of thin layers. It comprises of cylindrical slab of brass 87 cm x 12 mm (Dia x thickness), resting on it is a 5 cm deep hollow cylinder of the same diameter with inlet and outlet tubes for steam; both having radial holes, for the thermometers. Material under test is placed in between two cylinders. Apparatus suspended by strings attached to the lower cylinder from Iron ring 125 mm diameter on retort stand with rectangular base 220 x 140 mm and rod 600 mm long. Complete with one each disc, specimens of glass, plastic annulus 3mm thick for determining conductivity of liquids.

Spare Parts
Thermal Conductivity specimens, one each plastic and glass discs, one plastic annulus for liquid specimens.

Accessories
Thermometer Mercury-5 to 105°Cx0.5°C 2 Nos.


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Thermal Conductivity Apparatus, Lee's
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Thermal Conductivity Apparatus, Lee's   (HT-1540)

It is used to determine the conductivity of poor thermal conductors. It consists of three copper discs 12 x 45mm (thickness x diameter) each drilled to support thermometer, clamped in a frame with electric heating element 6V DC. It is supplied without thermometers.


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Steam Heater
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Steam Heater   (HT-1541)

Cylindrical copper vessel 180 x 100 mm (Ht x diameter) with filling tube, steam vent and vertical tube terminating in chute passing through side of the vessel. There is brass tube, sliding fit in the central tube to carry thermometer. Lower end is cut at an angle to seal the chute.


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Steam Generator   (HT-1542)

Tinned iron, capacity (a) 1 Litre (b) 2.5 Litres (c) 2.5 Litres


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Steam Generator Copper
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Steam Generator Copper   (HT-1543)

Cylindrical 280 x 115 mm (overall Ht x dia), cap 1.5 litre, neck 23mm (I.D.) with riffled side tube 9.5 mm max o.d. and with water gauge.


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Steam Generator (Kettle)
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Steam Generator (Kettle)   (HT-1544)

Stainless Steel, electrically heated, capacity 1 litre approx.


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Regnault's Hypsometer
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Regnault's Hypsometer   (HT-1545)

For determination of the upper fixed point of thermometers and boiling points at barometric pressure other than atmospheric, Double walled copper cylinder dia. 60mm mounted on a steam boiler. It is provided with a tube at the top, side outlet draining tube and an opening for manometers.


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Dewar Vessel (Vacuum Flask)
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Dewar Vessel (Vacuum Flask)   (HT-1546)

Double walled glass vessel, evacuated, silvered
Capacity a) 125ml b) 375ml c) 600ml d) 1000ml


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