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Chemistry
Melting Point Apparatus, MP-100, Spare Thermometer
Spare thermometer, spirit filled, to 250 °C.
332.01 AED
Digital Melting Point Apparatus, Cole-Parmer Stuart MP-200
Designed with safety and ease of operation in mind making it ideal for use in education. Two samples can be tested simultaneously. Built-in illumination and viewing magnifying lens give clear viewing of samples. •Temperature range: Ambient to 300°C. •Three digit LED display. •Range rates: 20°C/min to plateau and 2°C/min to melt. •For 220/240V. •Dimensions (L x W x H): 160 x 220 x 170 mm.
5968.28 AED
Thiele Melting Point Apparatus
A glass apparatus with side tube to allow stirring by convection of heating liquid. Dimensions: 182 x 84 mm. I.D. 16 mm.
74.31 AED
Digital Melting Point Apparatus, Cole-Parmer Stuart MP-200D-HR
Designed with safety and ease of operation in mind making it ideal for use in education. Two samples can be tested simultaneously. Built-in illumination and viewing magnifying lens give clear viewing of samples. Temperature range: Ambient to 300°C. Three digit LED display. Resolution is to 0.1°C and temperature to melt is variable from 1-10°C. For 220/240 V. Dimensions (L x W x H): 160 x 220 x 170mm.
7865.48 AED
Simple Melting Point Apparatus
An aluminium block with an angled hole drilled to accept thermometer (not included). Dimensions (Diameter x H): 65 x 50 mm.
149.40 AED
Melting Point Tubes, Capillary, 75 mm, Open Both Ends
Soda Glass. Outside diameter 1.8-2.0 mm. Wall thickness 0.28-0.32 mm. In packs of 100.
36.36 AED
Melting Point Tubes, Capillary, 100 mm, Open Both Ends
Soda Glass. Outside diameter 1.8-2.0 mm. Wall thickness 0.28-0.32 mm. In packs of 100.
41.50 AED
Principles of Gel Filtration Chromatography Kit
Introduce chromatographic separation to your class and show them how dyes of different colours separate on the basis of their size and shape. Columns may be rinsed and reused. Kit includes: instructions, sample mixture, chromatography columns, dry matrix, elution buffer, transfer pipettes, microtest tubes. All you need: 50 or 100 mL beakers, 25m mL beaker or test tube, ring stands with clamps, distilled water. For 10 Separations. Packing Column 20 min., Column Separation 40 min.
770.74 AED
Principles of Thin Layer Chromatography Kit
This experiment introduces chromatographic theory and methods of thin layer chromatography. A mixture of dyes are separated on cellulose-based TLC plate using two different solvent systems. Kit includes: instructions, samples, reagents and solvents, 10x20 cm cellulose thin layer plate (to be cut into eight 5x5 cm squares), 5 µL glass capillary pipets. All you need: 250 mL beakers, metric rulers, pipet pump, or 10 mL pipets, distilled water. For 8 Separations. Spotting Plates 20 min., TLC Separation 5 min.
770.74 AED
Ion Exchange Chromatography Kit
Most molecules have net charge within pH range of 2 to 10. When the pH is altered, the net charge on molecules can change drastically. In this experiment, mixture of two chemicals is absorbed onto solid support ion-exchange column and separated during elution under conditions that influence their net charge. Kit includes: instructions, ion exchanger, chemical mixture, potassium acetate buffer, chromatography columns. • All you need: spectrophotometer cuvettes, ring stands and clamps, test tubes, lab glassware, distilled water, ml pipets and pumps. For 6 Separations. Requires 60-90 min.
833.98 AED
Mole Set
This Mole Set contains samples of four different metals and helps students to visualise mole of substance in solid state, as well as developing better understanding of the concept of the mole, mass, molar mass, along with the differing properties of the various metals. The set contains four element specimens: copper, iron, zinc and aluminium, each containing approximately one mole (6.023 1023 atoms) of the element. Comparison of each sample, side-by-side, clearly shows that the same molar amount of different elements have different masses and occupy different volumes, due to each element having different atomic mass and density.
173.12 AED
Atomic Structure Kits, Demonstration & Class Set
The complete package! This whole class set contains one Atomic structure Demonstration kit and eight Atomic Structure Student Kits, along with lesson plan/working sheet which has been developed together with science teachers; use it for studying activities, for tips and guidance or as tests for the students.
1784.95 AED
Atomic Structure Kits Spares
Student version spare particles, consisting of 30 protons, 30 electrons and 30 neutrons.
124.11 AED
Chromatography Column, Pyrex
With 'Rotaflo' stopcock and porosity 'O' sintered disc. Stopcock bore 3 mm. Socket 19/26. Dimensions (L x Diameter): 300 x 20mm.
1075.08 AED
Chromatography Separation Ink
A mixture of cyan, magenta and yellow inks which appears black when combined but separates out into bright constituent colours when spotted on chromatography card and separated using solvent, (water) or by electrophoresis. Provides sufficient for approximately 500 ink spots.
22.92 AED
Parker Quink Ink, Black
An ink which uses isopropyl alcohol, instead of water, as solvent, so it dries by absorption instead of evaporation. When paper with Quink becomes wet, the ink will run into its separate components. The bottles have low centre of gravity to reduce the risk of tipping over. Supplied in 57 mL bottle.
83.00 AED
Universal Electrode Holder
These versatile electrode holders are suitable for holding Carbon rod electrodes as well as metal strip electrodes. They are designed to fit over 100 mL and 250 mL glass beakers, being held in place by small plastic lugs to prevent them slipping off. Resistant to corrosion, they accept 6 - 8 mm diameter cylindrical (e.g. carbon) electrodes and 19mm wide, 0.8 mm (minimum) thick metal strip electrodes. The brass connectors also resist corrosion and are compatible with the usual 4 mm stackable type lab leads. To tighten the carbon electrodes without crushing them, the setscrew is equipped with stop. • 4 mm sockets • Dimensions (L x W x H): 100 x 40 x 15 mm • Complete with 2 carbon electrodes
166.01 AED
S Shape Electrodes
These 'S' shaped electrodes are convenient and easy to use simply hang them over the rim of the beaker containing the electrolyte and connect crocodile clips with 4 mm leads to them! Made from insulated brass, with a short length of carbon rod attached at the lower end and bare contact at the top for attaching crocodile clip. Supplied as a pair of electrodes.
54.54 AED
Electrodes Round, Nickel, 150 mm
These round electrodes will fit the electrode holder EL110620, the electrode connector EL150426, and rubber stoppers with hole. Diameter 6-7 mm.
86.56 AED
Electrodes Round, Aluminium, 150 mm
These round electrodes will fit the electrode holder EL110620, the electrode connector EL150426, and rubber stoppers with hole. Diameter 6-7 mm.
29.25 AED
Electrodes Round, Tin, 150 mm
These round electrodes will fit the electrode holder EL110620, the electrode connector EL150426, and rubber stoppers with hole. Diameter 6-7 mm.
76.68 AED
Electrodes Round, Carbon, 200 mm
These round electrodes will fit the electrode holder EL110620, the electrode connector EL150426, and rubber stoppers with hole. Diameter 6-7 mm.
209.48 AED
Electrolysis Cells
Each cell consists of 75 x 25 mm glass cylinder with 2 hole rubber stopper fitted with carbon electrodes. Electrical contact is made through the crocodile clips and a piece of insulating material between the electrodes prevents short circuiting. The gases evolved are collected in two 75 x 10 mm test tubes suspended over the electrodes by piece of wood and rubber bands (not supplied).
218.18 AED
Fruit Clock
This kit uses the juice within lemon as an electrolyte in an oxidation-reduction reaction to produce useful electricity sufficient to power clock. The electrodes must be sanded clean between each attempt. Requires lemons to make ""batteries"" in series to generate sufficient voltage to power the clock.
74.31 AED
Salt Bridge
Consisting of an inverted U-tube with its ends closed by sintered discs. Dimensions (Diameter W x H): Arms 13 x 80 x 100 mm.
112.65 AED
Simple Cell, Student Kit
This set allows students to experiment with the characteristics of primary cells (voltaic cells). By using different electrodes and electrolytes, various voltaic cells can be made and tested. The set contains various different electrodes, including zinc, lead, aluminium, carbon, tin, copper, nickel and iron. Also included are a plastic cell container with electrode holders and porous pot. Instructions included. Dimensions: 100 x 20 mm (approx.).
149.80 AED
Hoffman Voltameter, Glass Stopcock
Comprises three parallel tubes, joined at the bottom with a horizontal tube. The central tube has a funnel for filling with water, and the side tubes have open ends at the bottom to allow bungs that hold electrodes to be fitted, and jets with stopcocks at the top for collecting gas in test tubes. The side tubes are graduated 0-50 x 0.2 mL so that the volume of gas in each can be measured. Clamps and support base (sold separately) are recommended so the unit can be mounted on retort rod.
377.07 AED
Student Gas Voltameter
For student experiments. Embedded platinum electrodes are connected via 4 mm sockets. Two miniature test tubes are included for gas collection.
193.28 AED
Welding Filter Lens, Shade 9, 108 x 50 mm
Shade welding filter lenses, as recommended for safe viewing of burning magnesium etc. Sold as pack of 10 filters.
79.40 AED
Welding Filter Lens, Shade 9, 108 x 83 mm
Shade welding filter lenses, as recommended for safe viewing of burning magnesium etc. Sold as pack of 10 filters.
57.71 AED
Chemical Jigsaw, Key Stage 4 Upgrade Kit
Chemical jigsaws offer highly effective method of teaching chemical formulae and equations. It uses number of interlocking pieces with plus signs and arrows that enable students to build representations of covalent and ionic compounds and also to model equations. Advantages: • More effective understanding of formulae • Enhanced motivation • Use of OHP for demonstrations. Covalent jigsaw:- In the covalent jigsaw, atoms are represented by coloured disks with cut-outs corresponding to the positions of atoms in the periodic table. Atoms are joined by clear bonds representing electrons shared between atoms. The covalent jigsaw is available in two boxed sets. Ionic jigsaw:- The ionic jigsaw pieces build on the popular method of using squares and rectangles to aid the determination of ion ratios when constructing formulae. The parts are translucent and can be placed on an OHP for projection. The formulae can be identified by shape, colour and identifying symbols/formulae can be written on them in felt-tip pen. Please Note: the KS3 kit is required prior to the KS4-upgrade kit.
124.50 AED
