NIOSHTIC-2 Publications Search

Colorimetric determination of siliceous atmospheric contaminants.

Authors
Talvitie NA; Hyslop F
Source
Am Ind Hyg Assoc J 1958 Feb; 19(1):54-58
NIOSHTIC No.
00041039
Abstract
A method for colorimetric determination of siliceous atmospheric contaminants is described. Particulate silica (7631869) and silicates are collected on membrane filters, dissolved in hydrofluoric-acid (7664393), and determined colorimetrically as yellow silicomolybdate (11121258) or as molybdenum-blue (66771435) after reduction with 1-amino-2-naphthol-4-sulfonic-acid (116632). The dual sensitivity obtained by the use of the two colors permits accurate analyses in the relatively large range of 1 microgram to 2.5 milligrams without the necessity of taking an aliquot. The small air volumes required were easily sampled with hand-operated equipment.
Keywords
NIOSH-Author; Methodology; Colorimetry; Assays; Pollution; Sulfonic-acids
Contact
N. A. Talvitie, Occupational Health Program, Bureau of State Services, Public Health Service, U. S. Department of Health, Education, and Welfare, lOl4 Broadway, Cincinnati, Ohio
CODEN
AIHAAP
CAS No.
7631-86-9; 7664-39-3; 11121-25-8; 66771-43-5; 116-63-2
Publication Date
19580201
Document Type
Journal Article
Fiscal Year
1958
Issue of Publication
1
ISSN
0002-8894
NIOSH Division
OHP
Source Name
American Industrial Hygiene Association Journal
State
OH
Page last reviewed: November 6, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division