POLYSULFIDE MEASUREMENT METHODS USING COLORIMETRIC TECHNIQUES

Methods of converting a sulfide in a composition to polysulfide are described, one method comprising the steps of exposing the composition to conditions and for a time sufficient to cause conversation of at least a portion of the sulfide, to polysulfide to form a modified composition; and controllin...

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Bibliographische Detailangaben
Hauptverfasser:	MEENAKSHI, SUNDARAM, V., S, DUARTE, DANIEL, HAOUCHINE, MALIK
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	APPARATUS THEREFOR CHEMISTRY COLORIMETRY COMPOUNDS THEREOF INORGANIC CHEMISTRY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING METALLURGY NON-METALLIC ELEMENTS PAPER-MAKING PHYSICS PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS RADIATION PYROMETRY REGENERATION OF PULPING LIQUORS TESTING TEXTILES
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Beschreibung
Zusammenfassung:	Methods of converting a sulfide in a composition to polysulfide are described, one method comprising the steps of exposing the composition to conditions and for a time sufficient to cause conversation of at least a portion of the sulfide, to polysulfide to form a modified composition; and controlling the conversation to polysulfide by measuring a color parameter of the modified composition. L'invention concerne des procédés de conversion d'un sulfure d'une composition en polysulfure, un procédé consistant à exposer la composition dans des conditions et pendant une durée suffisante pour induire la conversion d'au moins une partie du sulfure en polysulfure, de manière qu'une composition modifiée soit formée ; et à contrôler la conversion en polysulfure par la mesure du paramètre de couleur de la composition modifiée.