Sulfuric Acid Molecule 3D Model with Engraved Atoms - Chemistry Teaching Aid (CAS 7664-93-9)

Sulfuric Acid molecular model (H2O4S, CAS 7664-93-9): a free, print-ready ball-and-stick model with the element symbol engraved on every atom, designed for chemistry lessons.

An acyclic molecule to start with: Sulfuric Acid joins 7 atoms through 6 bonds (4 single and 2 double), and students will not find a ring. Hand the model round and let students tally the engraved atoms: 2 H + 4 O + 1 S, 7 in total. Worth printing alongside it: Methanesulfonic Acid (CAS 75-75-2) and dimethyl sulfone (CAS 67-71-0), structurally the nearest in the collection. Team task: with the model in hand, each group marks the sulfonic acid group (-SO3H), then writes down what they found.

Printing: the STL is in angstrom units - scale it 10x in the slicer (1 angstrom = 10 mm). Use supports under the bonds; PLA works well.

Full data, safety notes and other formats: https://molgod.org/molecule/7664-93-9/

Licence and provenance: https://molgod.org/licenses/stl/7664-93-9/

MolGod ID: MG_679-274-140-44

Also published on: Zenodo (DOI, latest version) https://doi.org/10.5281/zenodo.23454142

Atomic coordinates: PubChem computed 3D conformer; mesh generated by MolGod's own software. Licence: CC BY-SA 4.0, MolGod.org.