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Sodium Acetate: Acetic Acid Neutralised with Washing Soda
Sodium acetate is acetic acid with its acid taken up by soda. US Dispensatory (1907): add crystals of sodium carbonate to acetic acid until neutral, filter, concentrate and crystallise. The crystals are clear prisms that lose water in warm dry air, so keep them closed.
The picture: a sodium acetate crystal (Wikimedia Commons).
Beginner
1 day
Instructions
1
1
Neutralise the acid
Neutralise the acid
Goggles on. Dilute 100 g of glacial acetic acid with about its own volume of water. Add washing-soda crystals a little at a time, stirring, until it is neutral to litmus (about 240 g).
Materials for this step:
Acetic Acid (Glacial)100 g
Washing Soda240 gTools needed:
Water
Borosilicate Beaker
Glass Stirring Rod
Litmus Paper
Balance Scale
Chemical Splash Goggles2
2
Filter and concentrate
Filter and concentrate
Filter, then boil the solution down in a dish.
Tools needed:
Fine Cotton Filter Cloth
Evaporating Dish
Sand Bath3
3
Crystallise
Crystallise
Let it cool and crystallise. Drain the crystals and keep them in a closed jar.
Tools needed:
Evaporating Dish
Glass Jars with LidsMaterials
2- Placeholder
- 240 gPlaceholder
Tools Required
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