A new detection tube to detect hydrogen cyanide in the air
A new simple and sensitive detection tube to detect hydrogen cyanide in the air has been developed. The detection tube is based on the reaction of hydrogen cyanide with 4-nitrobenzil to form a violet colored product. The reaction takes place on the carrier made of a composite material which...
Main Authors: | , , , , , |
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Format: | Article |
Language: | English |
Published: |
Association of the Chemical Engineers of Serbia
2014-01-01
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Series: | Chemical Industry and Chemical Engineering Quarterly |
Subjects: | |
Online Access: | http://www.doiserbia.nb.rs/img/doi/1451-9372/2014/1451-93721200118P.pdf |
Summary: | A new simple and sensitive detection tube to detect hydrogen cyanide in the
air has been developed. The detection tube is based on the reaction of
hydrogen cyanide with 4-nitrobenzil to form a violet colored product. The
reaction takes place on the carrier made of a composite material which was
prepared by pelletization of a mixture of microcrystalline cellulose and
MgO. The detection tube can detect hydrogen cyanide in the air in the range
of concentrations 0.1-100 mg.m-3 based on visual evaluation (by naked eye)
of the change of indication layer coloring and comparison with etalon. The
detection limit is 0.05 mg.m-3. The detection tube is highly selective and
sufficiently stable during storage. |
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ISSN: | 1451-9372 2217-7434 |