Build a reflux and a distillation that fit togetherBuild a reflux and a fractional distillation from single pieces fitted at their true joint size, with liquids, stirring, heating and cooling water.Fit flasks, condensers, heads and adapters at their true ground joints, pipe water and gas through them, and save the apparatus as an SVG. The builder needs JavaScript, because the apparatus is assembled in your browser.

Build — flasks, condensers, setups, clamps, tubing and liquids

Learn — slide shows that teach the builder, with the builder running in them

About — what the apparatus builder does, and how to cite it

Our other tools

learn.cheminfo.org — Arrange the tools into a course and hand out its link.

inchi.cheminfo.org — InChI and InChIKey from a structure, in the browser.

vcl.cheminfo.org — Combine a core and fragments into a screened library.

smiles.cheminfo.org — Draw a structure, read its SMILES, learn the notation.

iupac-name.cheminfo.org — The IUPAC name of a structure, and the structure a name denotes.

openbabel.cheminfo.org — Convert a structure between any pair of chemical file formats.

www.chemcalc.org — Molecular formula, exact mass and isotopic distribution.

dbe.cheminfo.org — Count rings and double bonds from a formula or a structure.

www.nmrium.org — Process and assign NMR spectra in the browser.

metabo.nmrium.com — Turn a batch of NMR spectra into a map of your samples.

derepflow.cheminfo.org — Identify the constituents of a mixture from its ¹³C spectrum.

isomers.cheminfo.org — Every constitutional isomer of a molecular formula.

tex.cheminfo.org — LaTeX formulas rendered to SVG or PNG from a URL.

lcao.cheminfo.org — Combine atomic orbitals into molecular ones.

regexp.cheminfo.org — Learn regular expressions in a live playground.

pdb.cheminfo.org — A fast look at any Protein Data Bank entry.

elucidation.cheminfo.org — A structure from a 1H NMR spectrum and a formula.

spectroscopy.cheminfo.org — Find a structure from its IR, mass and NMR spectra.

equilibrium.cheminfo.org — Chemical equilibria: pH, speciation and titration curves.

polycarp.cheminfo.org — Predict the microstructure of a radical copolymerisation.

3d.cheminfo.org — Conformers in 3D from a structure you draw.

periodic-table.cheminfo.org — The periodic table, coloured, plotted and taken apart.

database.cheminfo.org — Query a real chemical dataset in SQL and in Mango.

chembio.cheminfo.org — Natural products, and the organisms they were found in.

wikidata.cheminfo.org — The chemistry of Wikipedia’s infoboxes, searchable by structure.

symmetry.cheminfo.org — Find the symmetry of a molecule, a crystal or a pattern.

osiris.cheminfo.org — Predicted toxicity risks and properties, one molecule or many.

atoms.cheminfo.org — Electrons, neutrons, Lewis structures and oxidation states.

moles.cheminfo.org — Balance a reaction, and work out its mass composition.

inorganic.cheminfo.org — Name an inorganic compound, and write its formula.

slides.cheminfo.org — Put a live tool on a slide, from the link its Share button gives.

vibrations.cheminfo.org — IR and Raman spectra computed in the browser.

draw.cheminfo.org — Journal-grade structures, in an SVG that keeps the chemistry.

tlc.cheminfo.org — Read a TLC plate, get its Rf, and weigh its eluent.