3B Scientific Electrochemistry Kit - Manual (Page 30)

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Notes on performing experiments
The teacher is responsible in all aspects for ensuring that pupils conduct the experiments in an
orderly and proper fashion. The teacher must become thoroughly familiar with the experimental
procedure and the handling of the appropriate equipment before the experiment is performed.
Students should be warned of possible dangers and be advised on the prevention of accidents.
All chemistry teachers should be informed concerning all aspects of safety regulations, accident
avoidance and prevention and are obliged to abide by these.
Safety regulations and regulations for the handling of chemicals are specified in the laws
concerning chemicals, hazardous materials and in the technical regulations for hazardous
materials. Further byelaws and guidelines for local regions are legally binding upon the school.
Instructions for disposal:
All equipment and electrodes should be cleaned and dried as thoroughly as possible after
experiments are completed in order to ensure their continued functionality.
Please dispose of residues and waste with due regard to the environment.
Those chemicals that have been used, which cannot be recycled for further use and need to be
destroyed, should be stored in special containers and disposed of in an appropriate manner.
Types of waste:
1. Inorganic acids
Disposal: container for acids and alkalis!
2. Alkalis
Disposal: container for acids and alkalis
3. Inorganic salts
Disposal: container for inorganic salts
4. Salts of heavy metals
Disposal: to be agreed with the party responsible for their disposal.
Disposal of substances should always be agreed with the party responsible for disposal. If
so agreed, substances may be dissolved in water in order to stabilize them.