Unit™ Large Demonstration Set

154.27 each

1 review

For models that can be seen from the back of the room

Add to favourites | View Favourites

Full Description Resources Customer Reviews

Build models of organic and inorganic molecules that can be seen from the back of the room.

This system offers great flexibility for teachers and lecturers across all levels of education:

With the large spheres 44 mm in diameter and smaller spheres of 25 mm for hydrogen

The versatile system allows all the larger spheres to be joined in sp, sp2, sp3, dsp3 or d2sp3 configurations.

Demonstrate single, double and triple bonds, isomers, ring structures, the chair-boat ‘flip’ of cyclohexane and VSEPR theory.

Bonds and atoms are to scale for accuracy at 8.5cm per 100pm

Easy to handle, build and take apart

Highly durable plastic parts create long-lasting models

Full range of supplementary atoms, bonds and orbitals available

Set Contents: 70 atom spheres, 90 rigid and flexible bonds, bonding pegs and instruction leaflet
Set 1950: The rigid bonds are made of metal, giving maximum rigidity, a smooth fit and sleek appearance.
Set 1962: The rigid bonds are made of plastic, giving convenience and durability at a reduced cost.

Information
Overview of Orbit, Minit and Unit Systems

Customer reviews shown below. Leave a review

Product quality:

Service and delivery:

Age of user: 18+

Unit™ Large Demonstration Set v2 - Plastic bonds

Submitted by: research fellow Jan Kehler (30/05/2025)

the large molecule demo building set is not worth the money. The bonds are to loose, once a molecule is build it immediately falls apart, completely useless as a demo-set for a class or audience. Don't buy it.

Response from Cochranes: Thank you for your feedback on our Unit Demonstration Set. We’re sorry that you are not satisfied with your purchase. We’d love the opportunity to rectify that and are reaching out to you directly to resolve the issue. Cochranes of Oxford.

Verified purchase