Logo LGA-GEO Nürnberg

LGA Institut für Umweltgeologie und Altlasten GmbH

Crocidolite (blue asbestos)

Nov 4, 2022

Crocidolite (blue asbestos)

Back to overview

Crocidolite is a fibrous variety of the rather rarely occurring chain silicate riebeckite from the alkali amphibole group. It is named blue asbestos because of its bluish to violet color. As with the other asbestos minerals, blue asbestos was popular in the construction sector because of its heat- and acid-resistant properties, especially as sprayed asbestos for fire protection in buildings with steel skeletons.
The greater tendency of blue asbestos fibers to split longitudinally makes the mineral more hazardous than Chrysotile (White Asbestos).

LGA Institut für Umweltgeologie und Altlasten GmbH

Christian-Hessel-Str. 1
D-90427 Nürnberg

Phone:  +49 911 12076 100
Telefax:  +49 911 12076 110
info@LGA-geo.de
bewerbung@LGA-geo.de

News

Older articles

Mercury

Nov 4, 2022

Mercury

Back to overview

The heavy metal mercury is classified as toxic, carcinogenic and hazardous to water. It is often used in liquid form ( manometers, thermometers, pumps, rectifiers, switches, fluorescent tubes, energy-saving lamps, etc.), as a paint pigment (vermilion) or as a wood preservative. In nature, it is bound in biomass, raw materials (e.g. limestone) and fuels (especially coal), among other things, and is released back into the atmosphere when they are processed or burned, until it finds its way back into soils and biomass with the precipitation.

LGA Institut für Umweltgeologie und Altlasten GmbH

Christian-Hessel-Str. 1
90427 Nürnberg

Tel: +49 911 12076 100
Fax: +49 911 12076 110
info@LGA-geo.de
bewerbung@LGA-geo.de

Aktuelles

Ältere Artikel

Chromium

Nov 4, 2022

Chromium

Back to overview

The heavy metal chromium is used as a chromium (III) compound primarily in tanning processes (“chrome tanning”) and for alloys, and is also found in certain salt-based wood preservatives. Chromium (III) is significantly less toxic than the chromium (VI) compound, which is also frequently found (see Chromate).

LGA Institut für Umweltgeologie und Altlasten GmbH

Christian-Hessel-Str. 1
D-90427 Nürnberg

Phone:  +49 911 12076 100
Telefax:  +49 911 12076 110
info@LGA-geo.de
bewerbung@LGA-geo.de

News

Older articles

Chromate

Nov 4, 2022

Chromate

Back to overview

The chromium (VI) compound was frequently a component of, among other things, color pigments (“chrome yellow”), certain cements, mortars and screeds, and fireclay bricks. Unlike other chromium compounds, chromate is extremely toxic, carcinogenic and hazardous to water. 

LGA Institut für Umweltgeologie und Altlasten GmbH

Christian-Hessel-Str. 1
90427 Nürnberg

Tel: +49 911 12076 100
Fax: +49 911 12076 110
info@LGA-geo.de
bewerbung@LGA-geo.de

Aktuelles

Ältere Artikel

Arsenic

Nov 4, 2022

Arsenic

Back to overview

The element Arsenic belongs to the semimetals. Because of their toxic properties, Arsenic compounds were used in the past as insecticides, among other things. In addition, Arsenic was often contained as an inorganic active ingredient in water-soluble wood preservatives or as a pigment in paints. 

LGA Institut für Umweltgeologie und Altlasten GmbH

Christian-Hessel-Str. 1
90427 Nürnberg

Tel: +49 911 12076 100
Fax: +49 911 12076 110
info@LGA-geo.de
bewerbung@LGA-geo.de

Aktuelles

Ältere Artikel

Zinc

Oct 31, 2022

Zinc

Back to overview

The heavy metal zinc is an essential element for all living things. Zinc has a wide range of applications. In industry, it is mainly used as corrosion protection for steel components (“galvanizing”). In paints, it was the usual white pigment (“zinc white”) for many years. As an inorganic active ingredient, zinc was also contained in water-soluble wood preservatives until the end of the 1980s. Zinc sheets were also used in some cases for roofing.

 

LGA Institut für Umweltgeologie und Altlasten GmbH

Christian-Hessel-Str. 1
90427 Nürnberg

Tel: +49 911 12076 100
Fax: +49 911 12076 110
info@LGA-geo.de
bewerbung@LGA-geo.de

Aktuelles

Ältere Artikel