Process for the crystalline precipitation of chromogens
First Claim
1. A process for crystalline precipitation of a chromogen from solution thereof in a solvent and within a capillary, comprising the steps of initiating a course of crystalline precipitaton of the chromogen by initially and locally supersaturating the solution within the capillary, and thereafter evaporating the solvent at a rate and in an environment sufficient for further crystallization to proceed unimpeded by local supersaturation.
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Abstract
The invention contemplates a process for the crystalline precipitation of a chromogen from solution thereof in a solvent and within a capillary. The process involves first initiating a course of crystalline precipitation of the chromogen by initially and locally supersaturating the solution within the capillary, and thereafter evaporating the solvent at a rate and in an environment sufficient for further crystallization to proceed unimpeded by local supersaturation.
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Citations
19 Claims
- 1. A process for crystalline precipitation of a chromogen from solution thereof in a solvent and within a capillary, comprising the steps of initiating a course of crystalline precipitaton of the chromogen by initially and locally supersaturating the solution within the capillary, and thereafter evaporating the solvent at a rate and in an environment sufficient for further crystallization to proceed unimpeded by local supersaturation.
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