Chrysotile white asbestos

Silicates with layer. structures include some of the most familiar and important minerals known to man, partieularly the clay minerals [such as kaolinite (china clay), montmorillonite (bentonite, fuller s earth), and vermiculite], the micas (e.g. muscovite, phlogopite, and biotite), and others such as chrysotile (white asbestos). 

Figure 4.9. Changes in the Si MAS NMR spectra during the thermal decomposition of chrysotile (white asbestos). Note the evidence for the two dehydroxylated phases, that at — 72 ppm forming forsterite directly, that at — 97 ppm forming enstatite by the thermal decomposition sequence shown schematically at the right. From MacKenzie and Meinhold, (1994a), by ptermission of copyright owner.

SYNONYMS Chrysotile, amosite, crocidolite, tremolite, anthophyllite, actinolite, tremolite, actinolite, serpentine chrysotile, white asbestos, blue asbestos. 

Double-chain silicates, shown in Figure I5.13f, find some SiO units sharing two oxygens while others share three. The repeating unit is Si40if. Five double-chain silicates [tremolite, anthophyllite, actinolite, amosite ( brown asbestos ), crocidolite ( blue asbestos ), all members of the amphibole family of minerals] and the serpentine mineral chrysotile ( white asbestos ) are classified under the generic name asbestos. The molecular-level chain structure of these materials is reflected in... 

Modern experience is that all forms of asbestos are equally hazardous, although for different reasons. Previously, attention was focused on blue asbestos (crocidolite), followed by amosite, or brown asbestos. The latter is often a component of tiles. Chrysotile, white asbestos, not only produces asbestosis following even quite modest exposures, but also cancer of the lung. Analysis determines the fibre type or types, which indicates the requirements for protection although this work will be restricted to HSE licence holders. 

Chrysotile, sometimes called white asbestos, with its unique fibrous form, is an expression of the subtle structural variations that can be found in crystalline solids. These characteristics illustrate the need to go beyond the simple, or standard, chemical and crystal analyses used for identification, to understand the distinctive qualities of fibrous inorganic materials. 

White asbestos Categorical term used primarily for processed chrysotile. Chrysotile en masse has a golden color. 

There are various forms of asbestos and not all are equally hazardous. White asbestos, or chrysotile, is the form most commonly used and is the least harmful, being relatively inert in living systems. Crocidolite, or blue asbestos, is especially hazardous and may contaminate white asbestos. 

R04 RG 600 SERPENTINE SERPENTINE CHRYSOTILE SYLODEX WHITE ASBESTOS WHITE ASBESTOS (chiysotile, actinolite, anthophyllite, ttemolite) (DOT)... 

Chrysotile Asbestos— A fibrous member of the serpentine group of minerals. Chrysotile asbestos fibers are flexible and have a curved morphology. It is the most common form of asbestos used commercially, also referred to as white asbestos. 

SYNONYMS 4T04, 7N05, 7RF10, chrysotile, amosite, crocidolite, asbestos fibers, synthetic fibers, AT 7-1, calidrea-hop, mountain-cork, mountain-leather, mountain wood, P-5-50, white asbestos... 

Actinolite Amosite Anthophyllite Asbestos Asbestos, blue, 9 Asbestos, brown Asbestos, white, 9 Blue asbestos Blue asbestos (crocidolite), 9 Brown asbestos (amosite, mysorite), 9 Chrysotile Crocidolite Mysorite Talcum with tremolite and/or actinolite Tremolite White asbestos White asbestos (chrysotile, actinolite, anthophyllite, tremolite), 9... 

White asbestos (12001-29-5) refers to the degree to which the mineral surface achieves complete reflectance over the visible spectrum rather than to the actual colour or hue of the mineral consequently, white describes multiple asbestos types, although it is most commonly applied to actinolite, chrysotile, and sometimes anthophyllite and tremolite. Similarly, while brown asbestos principally refers to amosite, it actually describes the degree to which the mineral deviates from colourlessness toward yellow, tan, or brown. 

Asbestos. Asbestos is a generic name for naturally occurring mineral silicate fibres of the Serpentine and Amphibole series. In the Serpentine series is Chrysotile, commonly kno m as white asbestos. In the amphibole series are Actinolite, Amosite or Mysorite (commonly known as brown asbestos), Anthophyllite, Crocidolite (commonly known as blue asbestos) and Tremolite. All types of asbestos can be hazardous to health, blue and brown asbestos being the more dangerous types. ICAO A2... 

For dust consisting of or containing other types of asbestos, e.g. chrysotile (white)... 

As discussed earlier in this chapter, asbestos can occur in three forms - crocidolite (blue), amosite (brown) and chrysotile (white). It was used widely as a building material until the mid-1980s. Although much asbestos has been removed from buildings, it has been estimated that over half a million non-domestic buildings still have asbestos in them amounting to many thousands of tons. 

Whisker whisker resin Whiskerhaiz white asbestos/ chrysotile/... 

---