Z184780

Cochranes molecular models

orbit, lattices

• Synonym(s): chemistry model sets, molecular model sets
• UNSPSC Code: 60104506
• NACRES: NB.17

Properties

• description: Scale: 2 cm = 0.1 nanometer (1 Å), Minit 3 cm = 0.1 nanometer (1 Å), Orbit
• feature: no. of atoms 270; no. of bonds 220
• manufacturer/tradename: Cochranes 0028

Description

General description

An extensive model system offering 15 atomic bonding configurations in 12 colors of plastic atoms. The carbon atom is represented in nine configurations: linear, trigonal (in five angle variations), tetrahedral, octahedral, trigonal-bipyramidal. Models come in two sizes: Orbit and Minit. Spare atom centers and bonding tubes are available for all model kits.

Please see Technical Information Bulletin AL-183 for a listing of these items, available on our website at sigma-aldrich.com

Learn about the structure of diamond, graphite, the metals (iron, copper, magnesium), sodium chloride, cesium chloride, zinc blend, wurzite, rutile, ice and layered structures. Suitable for a student, teacher, researcher or a small group. Includes instructions/activity book.

Scale 3 cm = 0.1 nanometer (1 A), Orbit

ATOMS:

• 2-prong linear: Hydrogen, white (24)
• 3-prong 120°: Carbon, black (37), Oxygen, red (25)
• 4-prong tetrahedral: Carbon, black (31), Oxygen, red (13), Sulfur, yellow (26), Halogen, green (10), Metal, silver (21)
• 6-prong octahedral: Halogen, green (15), Metal, silver (15)
• 8-prong cubic: Halogen, green (5), Metal, silver (19)
• 12-prong: Metal, silver (21)

BONDS:

• Extra-thick, light grey, 3.5 cm (100)
• Extra-thick, light grey, 2 cm (50)
• Rigid white, 10 cm (15)
• Rigid white, 5 cm (15)
• Rigid white, 3.5 cm (30)
• Rigid mixed, 10 cm (1)