Melting and freezing curve of sodium thiosulphate

Article no. P1044600 | Type: Experiments

10 Minutes
10 Minutes
grades 7-10

Also part of:

Student set Heat 2, TESS advanced Physics

Article no. 15275-88 | Type: Set

Delivery time: 4-8 weeks


The course of sodium thiosulfate's temperature during melting and subsequent freezing is measured. Moreover, it can be clearly seen that heat is necessary for the melting process: the temperature does not rise until all the salt has melted. During freezing this energy is released. This can be seen especially well when the molten salt first undercools and then immediately freezes when a salt crystal is dropped into it. The temperature rises immediately to the melting point.


  • Real stand material for an esecially stable and safe setup
  • Student-suitable experiment descriptions with reports available

File name
File size
File type
(de) Versuchsbeschreibung
p1044600d .pdf
File size 0.59 Mb
(en) Experiment guide
p1044600e .pdf
File size 0.60 Mb
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