Ensure that the spray can be safely directed away from yourself and the audience. Read our standard health & safety guidanceĬarry out the whole experiment in a well-ventilated area you have previously shown to be safe. Refer to Health & Safety and Technical notes section below for additional information. Potassium chloride (Low hazard) (see note 3)Ĭopper sulfate (Harmful, Danger to the environment)Įthanol (Highly flammable), approx 10 cm 3 for each metal salt, or IDA (industrial denatured alcohol) (Highly flammable, Harmful) Samples of the following metal salts (no more than 1 g of each) (see note 2): ![]() Hand-held spectroscopes or diffraction gratings (optional) Trigger pump operated spray bottles (see note 1) Preparation includes making up the spray bottles and conducting a risk assessment. Your employer’s risk assessment must be customised by determining where to spray the flame to guarantee the audience’s safety. It takes about ten minutes if all is prepared in advance. This experiment must be done as a demonstration. It can be extended as an introduction to atomic spectra for post-16 students. This is a spectacular version of the ‘flame tests’ experiment that can be used with chemists and non-chemists alike. This demonstration experiment can be used to show the flame colours given by alkali metal, alkaline earth metal, and other metal, salts. ![]() ![]() RSC Yusuf Hamied Inspirational Science Programme.Introductory maths for higher education.The physics of restoration and conservation.
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