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List of Diffusion Coefficients

Scientists often combine compounds to form new molecular mixes. If the compounds are in liquid or gaseous form, they will diffuse into one another until a new mix is created. Diffusion coefficients have units of area/time (such as square centimeters per second) to tell how long it takes until the entire mix is complete. The diffusion coefficient will also depend on constant air pressure. All of the following figures assume air pressure at sea level.

Air
- Carbon Dioxide in air 0.16 cm2/sec
  
  Oxygen in air 0.2 cm2/sec
  
  Water in air 0.25 cm2/sec
  
  Acetone in air 1.465 x10-7 m2/sec
Water
- Phosphate in water: ~1 x 10-5 cm2/sec
  
  Oxygen in water: 2 x 10-5 cm2/sec
  
  Carbon Dioxide in water: 1.6 x 10-5 cm2/sec
  
  Sucrose in water 4.586 x10-10 m2/sec
  
  Ribonuclease in water 1.19x10-10 m2/sec
  
  Lysozyme in water 1.04x10-10 m2/sec
  
  Hemoglobin in water 6.9x10-11 m2/sec
  
  Collagen in water 6.9x10-12 m2/sec
  
  Urease in water 3.46x10-11 m2/sec
  
  Myosin in water 1.16x10-11 m2/sec
Nutrients
- C Nutrient content:: 8 x 10-12 moles/cell per second
  
  P Nutrient content:: 8 x 10-14 moles/cell per second
  
  P Nutrient uptake:: 1.3 x 10-16 moles/sec
Other Coeffiicients
- (Adenosine triphosphate) ATP in cytoplasm 0.15 x 10-5 cm2/sec
  
  Xylene in high density polyethylene (HDPE) 5.1 --- 10-9 cm2/sec

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