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Z153176

Cochranes molecular models

minit, biochemistry, single kit with booklet

Synonym(s):

chemistry model sets, molecular model sets

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About This Item

UNSPSC Code:
60104506
NACRES:
NB.17

description

Scale: 2 cm = 0.1 nanometer (1 Å), Minit 3 cm = 0.1 nanometer (1 Å), Orbit

feature

no. of atoms 255
no. of bonds 220

manufacturer/tradename

Cochranes 0075

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General description

Build amino acids; monosaccharides, glycerol, fatty acids, steroids, purines and pyrimidines, peptides, disaccharides, lipids, nucleosides, nucleotides, proteins, polysaccharides, nucleic acids with this advanced student set in pocket-sized plastic container. Includes instruction/activity booklet.

Scale: 2 cm = 0.1 nanometer (1 A), Minit

ATOMS:
  • 1-prong: Hydrogen, white (75), Oxygen, red (10), Sulfur, yellow (2), Chlorine, green (2)
  • 2-prong linear: Hydrogen, white (10), Oxygen, red (10)
  • 2-prong 100°: Sulfur, yellow (2)
  • 2-prong 110°: Nitrogen, blue (2), Oxygen, red (25)
  • 2-prong 120°: Nitrogen, blue (5)
  • 3-prong 108°, 120°, 132°: Carbon, black (5)
  • 3-prong 108°, 126°, 126°: Carbon, black (5)
  • 3-prong 114°, 123°, 123°: Carbon, black (20), Nitrogen, blue (22)
  • 3-prong 120°: Carbon, black (20), Nitrogen, blue (10)
  • 4-prong tetrahedral: Carbon, black (30), Nitrogen, blue (2), Phosphorous, purple (5), Metal, silver (1)
  • 6-prong octahedral: Iron, grey (1)

BONDS:
  • Straw, green, 2.5 cm (40)
  • Straw, green, 2 cm (80)
  • Straw, green, 1.5 cm (80)
  • Straw, white, 3.5 cm (20)
  • Straw, mixed set/26 (1)
  • St v flexible white, 2.5 cm (3)
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

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Articles

VSEPR Chart | Valence Shell Electron Pair Repulsion Theory

Use our handy VSEPR chart to find the 3-D geometric VSEPR shapes of molecules and ions. Learn about VSEPR theory and shapes like trigonal planar or square pyramidal. VSEPR stands for valence shell electron pair repulsion.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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