Salts react with water glass by dissolving partly but also by forming a slllcate envelope. Due to a diffusion through this envelope (osmosis), an increased internat pressure is generated which causes the crystals to "grow".
Prepare a "chemical garden" by means of salt crystals.
- Easy teaching and efficient learning by using interactive experimentation PHYWE-Software
- Experiment is part of a complete solution set with experiments for the topic acids, alkalis and salts matched with international curriculum: all topics are covered