Analysis - purification and identification
The resources in this list include a wide range of topics including methods of analysis of mixtures, and separation and purification of compounds including filtration, crystallisation, distillation (simple and fractional) and chromatography. Simple qualitative analysis ( identification of what is present) of compounds including the identification of ions and gases is covered as is the use of spectroscopy for qualitaive and quantitative analysis.
These topics may be separated and included in different sections depending on your syllabus but are gathered together here in one list as they support and reinforce one another in the sense that separation of a compound from a mixture leads onto purification which in turn leads onto analysis.
Whilst this list provides a source of information and ideas for experimental work, it is important to note that recommendations can date very quickly. Do NOT follow suggestions which conflict with current advice from CLEAPSS, SSERC or other recent safety guides. eLibrary users are responsible for ensuring that any activity, including practical work, which they carry out is consistent with current regulations related to Health and Safety and that they carry an appropriate risk assessment. Further information is provided in our Health and Safety guidance
CSI 5/11 - Murder in the Park
An engaging activity in which students are asked to conduct flame tests in the context of solving a crime committed on bonfire night. The resource contains a student worksheet and teacher guidance.
Forensic Chemistry
This bundle of resources introduces a range of qualitative and quantitative techniques that can be used in forensic chemistry to find out the composition of samples. The pack includes both practical activities and research tasks.
Chemistry in Forensics
This is a really good video that looks at how forensic techniques have been used in real life cases. The techniques used do not directly relate to the curriculum but this resource is a very interesting example of seeing chemistry in context.
Death of a King
This article details how different scientific techniques were used to identify the remains of King Richard III. While not directly linked to the curriculum, this is an interesting article that looks at different scientific career paths.
Qualitative Analysis
A series of videos that demonstrate the qualitative tests found in the 14-16 curriculum. There are quizzes available for Teach Chemistry schools but the videos are very informative and worthwhile in their own right.