Laboratories in our school
There are several up-to-date, well-equipped laboratories in our school – two ICT labs, one electro-physics lab,
three language labs and four chemistry labs.
Laboratory practices / training
some once a week, others once in two weeks
Year one- inorganic chemistry Year three – analytical chemistry / basics of chemical engineering (CET)
Year two – organic chemistry Year four – analytical chemistry /physical chemistry/ basics of chemical
engineering
Equipment
glassware: Each piece of glassware has a name and purpose - test tubes, beakers of different size, funnels,
jars, various types of flasks, graduated cylinders, glass rods, retorts, pipettes, burettes, Petri dishes....
other equipment: stand, gauze mat, filter paper, ...
Each of the six tables in a lab has six working places, there is a worktop, a sink, Bunsen burner, rubber tubing,
vacuum pump, gas and water supply, electricity
Further there are various tools,instruments (instruments are more sophisticated tools) and devices- fume
hood / cupboard, desiccator, analytical balance, conductivity meter, (magnetic) stirrer, Ph meter, polarograph,
refractometer, polarimeter, distillation column, evaporator, furnace, PC
chemical storage cabinets, first aid, valves, gas cylinder
protective tools: lab coat/overall, goggles, gloves, shield
Safety rules: ……We mustn´t (eat and drink)… , we are not allowed (to work alone)…, we have to (wear a lab
coat), ….is forbidden (See „English for Chemists, p.20)
carry out / do/ conduct / perform an experiment
take measurements / measure
gather / obtain data from the procedure and record them
submit the lab report
What we do.
Year 1: basic work with glass, cork and rubber, preparation of solutions, determination of boiling and melting
points, weighing, density measurement, crystallisation, sublimation, distillation, microcrystalloscopy,
preparation of gases and their proof, photochemical reactions, reactions of metals, flame test
Year 2: preparation of organic compounds, organic qualitative analysis, dissolution, heating, cooling, stirring,
drying, purifying, sublimation, distillation, extraction
Year 3: analytical chemistry- volumetric solution, titration, indicator, volumetric analysis, alkalimetry,
acidimetry, manganometry, iodometry, chelatometry
Basics of chemical engineering- grinding, hydrostatics, filtration, sedimentation, stirring,
Year 4: analytical chemistry- potentiometric / conductometric / coulometric titration
spectrophotometry, chromatography, polarimetry, refractometry
Year 4: viscosity, density, reaction kinetics, polarography, electrophoresis, flame photometry, cryoscopy
spectrophotometry
basics of chemical engineering- heat exchanger, electrolysis, adsorption, calorimetry, differential distillation,
azeotropic rectification
Year 4: chemical tests – e.g. determination of sulfur dioxide in wine, determination of ammonium ions in water,
determination of salt contents in foods, analysis of mineral waters