Monograph pubs.acs.org/doi/book/10.1021/acsreagents
Benzyl Alcohol (Benzenemethanol)
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Part 4, Monographs for Reagent Chemicals: General Descriptions, Specifications, and Tests eISBN: 9780841230460 Tom Tyner Chair, ACS Committee on Analytical Reagents James Francis Secretary, ACS Committee on Analytical Reagents
ABSTRACT This monograph for Benzyl Alcohol provides, in addition to common physical constants, a general description including typical appearance, applications, change in state (approximate), aqueous solubility, and density. The monograph also details the following specifications and corresponding tests for verifying that a substance meets ACS Reagent Grade specifications including: Assay, Acetophenone, Benzaldehyde, Color (APHA), and Residue after Ignition.
C6H5CH2OH
Formula Wt 108.14
CAS No. 100-51-6
GENERAL DESCRIPTION Typical appearance . . . . . . . . Applications . . . . . . . . . . . . . Change in state (approximate) . Aqueous solubility . . . . . . . . . Density . . . . . . . . . . . . . . . .
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clear, colorless liquid preparation of alkoxides flash point, 100 °C; boiling point, 205 °C 4 g in 10 mL at 20 °C 1.05
SPECIFICATIONS General Use Assay . . . . . . . . . . . . . . . . . . . . . . . . . . . ≥99.0% C6H5CH2OH Maximum Allowable Color (APHA) . . . . . . . . . . . . . . . . . . . . . . 20
© 2017 American Chemical Society
A
ACS Reagent Chemicals ACS Reagent Chemicals; American Chemical Society: Washington, DC, 2017.
DOI:10.1021/acsreagents.4055 ACS Reagent Chemicals, Part 4
ACS Reagent Chemicals
Monograph
pubs.acs.org/doi/book/10.1021/acsreagents
Residue after ignition. . . . . . . . . . . . . . . . . 0.005% Acetophenone (C6H5COCH3) . . . . . . . . . . . . . 0.02% Benzaldehyde (C6H5CHO) . . . . . . . . . . . . . . 0.01%
Specific Use
Downloaded by CORNELL UNIV on May 15, 2017 | http://pubs.acs.org Publication Date (Web): February 28, 2017 | doi: 10.1021/acsreagents.4055
Headspace Analysis Assay by GC–HS [Part 2: Chromatography; Recommended Procedures; Extraction−Concentration; Procedure for Headspace Analysis Suitability]. . . . . . . . . . . 99.9%
TESTS Assay, Acetophenone, and Benzaldehyde Analyze the sample by gas chromatography using the parameters cited in [Part 2: Chromatography; Recommended Procedures; Gas Chromatography]. The following specific conditions are also required. Column . . . . . . . . . . . . . . . . . . . . . . . . . . Type III, polyethylene glycol Measure the area under all peaks, and calculate the area percent for benzyl alcohol, acetophenone, and benzaldehyde.
Color (APHA) [Part 2: Measurement of Physical Properties; Color (APHA); Procedure for Color (APHA)].
Residue after Ignition [Part 2: Gravimetric Methods; Residue after Ignition]. Use 25 g (24 mL).
© 2017 American Chemical Society
B
ACS Reagent Chemicals ACS Reagent Chemicals; American Chemical Society: Washington, DC, 2017.
DOI:10.1021/acsreagents.4055 ACS Reagent Chemicals, Part 4
