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Spectrophotometric determination of formaldehyde and formaldehyde-releasing compounds with chromotropic acid, 6-amino-1-naphthol-3-sulfonic acid (J Acid), and 6-anilino-1-naphthol-3-sulfonic acid (phenyl J acid).

Authors
Sawicki-E; Hauser-TR; McPherson-S
Source
Anal Chem 1962 Nov; 34(11):1460-1464
NIOSHTIC No.
00069532
Abstract
Three highly selective procedures for the determination of formaldehyde (50000) and formaldehyde releasing compounds are introduced. In all cases xanthylium cationic or dicationic dyes are formed. The procedures have sensitivities approximately two and one half times that of the chromotropic-acid (148254) method. A sensitive thermochromic blue spot test for formaldehyde with 6-amino- 1-naphthol-3-sulfonic-acid (87025) or 6-anilino-1-naphthol-3- sulfonic-acid is described, and nine different methods for the determination of formaldehyde are compared. The interference of formaldehyde releasing compounds is discussed.
Keywords
NIOSH-Author; Toxic-substances; Analytical-methods; Aldehydes; Formaldehyde; Spectrometry; Microanalysis; Colorimetry
CODEN
ANCHAM
CAS No.
50-00-0; 148-25-4; 87-02-5
Publication Date
19621101
Document Type
Journal Article
Fiscal Year
1963
NTIS Accession No.
NTIS Price
Issue of Publication
11
ISSN
0003-2700
Source Name
Analytical Chemistry
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