Dehydration, Water Vapor Adsorption and Desorption Behavior of Zn[B^sub 3^O^sub 3^(OH)^sub 5^] H^sub 2^O and Zn[B^sub 3^O^sub 4^(OH)^sub 3^]

The dehydration behaviors of two different hydrated zinc borate species, ... and ..., which are industrially important flame retardants, were studied by thermal gravimetric(TG) analysis and in situ diffuse reflectance infrared Fourier transform (DRIFT) spectroscopy. Dehydration onset temperatures of...

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Bibliographic Details
Published in:Drying technology 2012-10, Vol.30 (14), p.1610
Main Authors: Alp, Burcu, Gönen, Mehmet, Savrik, Sevdiye Atakul, Balköse, Devrim, Ülkü, Semra
Format: Article
Language:English
Subjects:
Adsorption
Desorption
Drying agents
Fourier transforms
Spectrum analysis
Thermogravimetric analysis
Online Access:Get full text
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Summary:The dehydration behaviors of two different hydrated zinc borate species, ... and ..., which are industrially important flame retardants, were studied by thermal gravimetric(TG) analysis and in situ diffuse reflectance infrared Fourier transform (DRIFT) spectroscopy. Dehydration onset temperatures of ... and ... were 129 and 320...C, respectively, at a 10...C/min ramp rate. A very small amount of boric acid was volatilized in addition to water vapor when both samples were heated at 250...C. A significant amount of water vapor was adsorbed by ... from air at 25...C. However, ... adsorbed a very small amount of water under the same conditions. Both zinc borates did not have a tendency to cake during storage. (ProQuest: ... denotes formulae/symbols omitted.)
ISSN:0737-3937
1532-2300