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It was invented by Lyman C. Craig and Otto W. Post. [1] A Craig tube consists of two parts. The first is a stout-walled test tube with a working volume of about 1-5 ml (say, 7-8 cm in length and 1-1.5 cm in diameter). There is a constriction towards the open end of the tube.
In 1950, Craig invented the rotary evaporator which is a necessary equipment in most chemical labs. [5] [6] He also invented the Craig tube, an apparatus used in small-scale chemistry, in particular for recrystallization. [7] He received recognition from his peers and several honors for his scientific accomplishments.
The Cragie tube or Craigie tube is a method used in microbiology [1] [2] for determining bacterial motility. Technique.
Recrystallization is a method used to purify chemicals by dissolving a mixture of a compound and its impurities, in an appropriate solvent, prior to heating the solution. [1] Following the dissolution of crude product, the mixture will passively cool, yielding a crystallized compound and its impurities as separate entities.
In metallurgy, materials science and structural geology, subgrain rotation recrystallization is recognized as an important mechanism for dynamic recrystallisation.It involves the rotation of initially low-angle sub-grain boundaries until the mismatch between the crystal lattices across the boundary is sufficient for them to be regarded as grain boundaries.
Dynamic recrystallization (DRX) is a type of recrystallization process, found within the fields of metallurgy and geology. In dynamic recrystallization, as opposed to static recrystallization, the nucleation and growth of new grains occurs during deformation rather than afterwards as part of a separate heat treatment.
On "Plead the Fifth," a juicy segment on "Watch What Happens Live," Craig Ferguson revealed the 'worst' guest who was ever on his show. The answer? Macy Gray.
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