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Apparatus and Reaction Scheme on One Figure (Dean–Stark Esterification)
A Dean–Stark apparatus and the esterification equilibrium of acetic acid and isoamyl alcohol on one figure. No need to draw the apparatus and the scheme in separate programs and paste them together.

Free to use without attribution in lab reports, theses, teaching materials, slides, supporting information and on the web, including modified and commercial use. Released under CC0 1.0 (public domain dedication). A mention of “made with FlaskConnect” is appreciated but not required.
Features used in this figure
- Apparatus (pick glassware and it connects; two-layer trap)
- Structures from names or SMILES
- Equilibrium arrow with reagents and conditions
- Export the whole figure to PowerPoint, Word, SVG or PNG
How to draw it in FlaskConnect
- Build the apparatus (flask → Dean–Stark trap → condenser → thermometer → bath).
- Call up the structures by name and line them up.
- Draw the equilibrium arrow and write reagents and conditions.
- Export the whole figure at once.
Notation tips
- Removing the water formed into the trap drives the equilibrium toward the products (Le Chatelier's principle).
- Compare the water collected with the theoretical amount to judge progress.
Watch it built
Building this setup in FlaskConnect (with narration).
Draw this in the app
This figure was drawn in FlaskConnect. Call up structures by name or SMILES, and add lone pairs, curved arrows and arrow text (subscripts and superscripts with buttons) in place. Drawing structures and schemes is Pro (US$3.99/month, first month free, or US$39.99 once); apparatus drawing and export are free.