logo BDSP

Base documentaire

  1. Vorkommen, Verwendung und Substitutionsmöglichkeit von Quarz.

    Article - En allemand

    Traduction en anglais : Occurrence, use and possible substitution of quartz.

    Silicates constitute approximately 90% of the earth crust.

    Silicon dioxide occurs as quartz (crystalline silicic acid) and silicates.

    Almost any natural inorganic raw material contains quartz.

    As quartz combines a number of unique physical properties, it has become an indispensable raw material for many traditional and high-technology applications.

    In many cases substitution is impossible due to technical, financial or logistic reasons.

    Wherever substitution is realised however - at least partly - a lower technical performance level and/or higher costs must be accepted, and very often substitution materials with a quartz content>0.1% are used.

    There is a large range of industrial and commercial applications of quartz in different substances, preparations and products.

    In addition, quartz can be found everywhere in the human environment.

    It is well-known that long-term high-level exposure to respirable quartz dust may cause silicosis.

    The long-established co-operation between the German Berufsgenossenschaften and the quartz-producing and quartz-processing industry shows that silicosis can be efficiently avoided as long as the applying maximum workplace concentrations (MAK-values) are observed.

    Mots-clés Pascal : Quartz, Tectosilicate, Silicate, Matière première, Propriété physique, Substitution, Utilisation, Industrie, Performance, Silicose

    Mots-clés Pascal anglais : quartz, framework silicates, silicates, raw materials, physical properties, substitution, utilization, industry

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 99-0143083

    Code Inist : 001E01A02. Création : 16/11/1999.