The tetrahedral sp3 oxygen atom is use mainly to illustrate water/ice models and is found in all of our student sets and several teacher sets or is available separately.
|Molymod organic/Inorganic teacher's molecular model set
|Molymod organic/inorganic molecular model set-Jr. college
|Molymod organic/inorganic molecular model set-extended
|Organic Stereochemistry Models Teacher Set, Molymod
|Molymod Student Molecular Model Set
|Molecular Model Set 62053 + bio upgrade+p/pi orbitals
|AT DNA Base Pair (w/o ribose phosphate)
|GC DNA Base Pair (w/o ribose phosphate)
|Ice molecular model kit, 105 atoms, 3 layers; Molymod
|Tablet Charging Stand Molecular Model
|Cell Phone Charging Stand Molecular Model
|AtoMag NaCl-H20 Molecular Model, Assembly Required
|AtoMag Ice Magnetic Model Kit
These are solid. The bonds are a tight fit and won't come lose. I'm currently building a kit to fit my needs. I'm grateful for finding this company.
Glad we could help. For anyone wanting to replenish a model set or kit or build a custom chemical structure, our 3D Molecular Model Builder will make your task much easier.