Customizable Nitric Acid (HNO3) - Labeled 3D Molecule Model
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Customizable labeled ball-and-stick nitric acid (HNO3) model with isotope labels; native recipe + STL.
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- Źródło
- Printables
- Kategoria
- Chemistry & Biology
- Licencja
- Creative Commons — Attribution — Noncommercial
A customizable, labeled ball-and-stick 3D model of nitric acid (HNO3), the strong mineral acid of fertilizers and aqua regia - built entirely from native TrueGeometry Playground commands.
CUSTOMIZE IT LIVE
Three sliders in the Playground reader control atom size ($ATOM), bond-stick radius ($BONDR) and bond length ($BONDL). Drag a slider or type a value and the model rebuilds. Run the attached recipe (3-nitric-acid.txt) in the TrueGeometry Playground. Open it in the Playground: https://www.truegeometry.com/CoreWebGLTG/KBEAgentHTTP.html
ABOUT THIS MODEL
- 5 atoms, 4 bond sticks - the N=O double bond appears as a twin pair of sticks, the classic ball-and-stick convention.
- Every atom carries an extruded on-sphere label: element symbol plus a sub-line naming the most-common isotope (mass, protons, neutrons - e.g. nitrogen "14 P-7 N-7"). Labels are included in the STL export.
- Chemistry from PubChem CID 944: nitric acid is depicted charge-separated (N +1, one O -1, one N=O, one N-OH); the real molecule is a resonance hybrid across the two non-protonated oxygens. Verified bond directions and connectivity.
NOTE ON THE COVER IMAGE
The cover/hero image shows the model at the smaller-atom "hero" preset ($ATOM 12, $BONDL 34) to expose the bond structure. The STL in Files is the default preset ($ATOM 17, $BONDR 2.6, $BONDL 28) - larger atoms, shorter sticks. Set the sliders to either look in the Playground.
FULL STORY + RECIPE
Blog post (chemistry, parameters, tests, full recipe text):
https://blog.truegeometry.com/0_0_0_0/blogs/post-e440dd30.html
Molecule series hub (water, glucose, glycine and more):
https://blog.truegeometry.com/0_0_0_0/blogs/post-0cce285f.html
PubChem source: https://pubchem.ncbi.nlm.nih.gov/compound/944
PRINTING NOTES
Not test-printed yet. At the default preset some atoms overlap their neighbors slightly by design (compact molecular look); the hero preset separates them more. 0.2 mm layer height suggested. The attached molecule-guide.pdf covers general printing and customization guidance for this molecule series.
AI DISCLOSURE
Geometry, labels and recipe generated with AI assistance and verified against the PubChem 3D record.