دانلود کتاب Reagent Chemicals

The specifications prepared by the Committee on Analytical Reagent of the American Chemical Society are intended to serve for reagents and standard-grade reference materials to be used in precise analytical work of a general nature. The term “reagent-grade chemical” implies that it is a substance of sufficient purity to be used in most chemical analyses or reactions. Standard-grade reference materials are suitable for preparation of analytical standards used for a variety of applications, including instrument calibration, quality control, analyte identification, method performance, and other applications requiring high-purity materials. (For the sake of brevity, standard-grade reference materials may be referred to as standards throughout this book.) It is recognized that there may be special uses for which reagents and standard-grade reference materials conforming to other, or more rigorous, specifications may be needed. Therefore, where known and where feasible, some of the specifications herein include requirements and tests for certain specialized uses. However, it is impossible to include specifications for all such uses, and thus, there may be occasions when it will be necessary for the analyst to further purify reagents known to have special purity requirements for certain uses.

This version requires equipment a tenth of milligram scale and a flame photospectrometer.