Organic Practical, step by step
A typical liquid organic preparation.
- RefluxProlonged heating without losing volatile material.
- Distil out the productCollecting over the correct boiling range.
- Separate in a funnelWash with sodium carbonate to remove acid; release pressure often.
- DryAnhydrous sodium sulfate or magnesium sulfate until it swirls freely.
- RedistilCollect the pure fraction.
- IdentifyBoiling point, IR, mass spectrum.
Percentage yield
- (actual ÷ theoretical) × 100
- Losses at every transfer, in the separating funnel and on distillation
Vent the separating funnel frequently when washing with carbonate: CO₂ builds pressure and can force the stopper out.
Questions about the Organic Practical poster
- What’s on the Organic Practical poster?
- 6 numbered steps, with a full worked run-through. A typical liquid organic preparation. Reflux — Prolonged heating without losing volatile material.; Distil out the product — Collecting over the correct boiling range.; Separate in a funnel — Wash with sodium carbonate to remove acid; release pressure of…; Dry — Anhydrous sodium sulfate or magnesium sulfate until it swirls freely.; Redistil — Collect the pure fraction.; Identify — Boiling point, IR, mass spectrum.. Vent the separating funnel frequently when washing with carbonate: CO₂ builds pressure and can force the stopper out.
- Who is the Organic Practical poster for?
- Organic Practical belongs to the Chemistry section rather than to a school year, because physical science is not something one grade owns. Anyone learning lab practice can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the Organic Practical poster?
- React, separate, dry, purify, identify. Every organic preparation follows it. A wall chart earns its place by being glanceable from where the work is happening, so Organic Practical belongs on the wall where that physical science work actually happens, within glancing distance, rather than filed away.
- What other posters go with Organic Practical?
- Apparatus, Calorimetry and Graphs in Chemistry sit alongside Organic Practical in the Chemistry section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.ApparatusCalorimetryGraphs in Chemistry
- Is the Organic Practical poster free to download and print?
- Yes. Organic Practical downloads as a free PDF with no account, no email and no watermark, like everything else in the Chemistry section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the Organic Practical poster print at?
- Organic Practical is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Organic Practical loses nothing.Printing guide
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