Civil Engineering - Building Materials - Discussion

The correct answer is All the above. All of the asbestos types listed—actinolite, amosite, anthophyllite, and crocidolite—belong to the Amphibole group of asbestos minerals, which are known for their general resistance to acids.

The distinction in acid resistance is primarily between the two main groups of asbestos:

1. Amphibole Asbestos (Acid Resistant) 1Includes: Actinolite, Amosite (brown asbestos), Anthophyllite, Crocidolite (blue asbestos), and Tremolite.
Structure: Amphiboles have a chemical structure based on a double chain of silicate tetrahedra. This double-chain structure forms solid, straight, and needle-like fibres.
Resistance: The amphibole structure is very strong and durable.

Their external surfaces are often described as having the chemical resistance of quartz, making them highly resistant to chemical breakdown by acids (including the strong acids found in the human body, such as stomach acid). This chemical inertness was a valuable property in industrial applications involving corrosive chemicals.

2. Serpentine Asbestos (Non-Acid Resistant) Includes: Chrysotile (white asbestos).
Structure: Chrysotile is a sheet silicate that forms flexible, curly fibres composed of a rolled-up sheet structure.
Resistance: Chrysotile is a magnesium silicate, and the magnesium-containing layer on its surface (a brucite-like layer) is easily attacked by acids, including those in the body (macrophages or the stomach). This chemical dissolution means chrysotile has low resistance to acids but is highly resistant to alkalis.

Therefore, because all four options provided are types of Amphibole asbestos, they are all classified as acid-resistant.

It is used in fire-resistant and insulating materials.

Please explain about asbestos.

Thanks @Mohit.

Are all types of asbestos are acid resistant? Please explain.

Asbestos refers to a set of six naturally occurring fibrous minerals:.

Chrysotile, crocidolite, amosite, anthophyllite, tremolite, and actinolite.

Among these, chrysotile (white colour) and amosite asbestos are most common.

Although asbestos fibres are microscopic in nature, they are extremely durable and resistant to fire and most chemical reactions and breakdowns. These properties of asbestos were the reasons that supported its use for many years in a number of different commercial and industrial capacities. The strength of asbestos, combined with its resistance to heat, allowed it to become the material of choice in a variety of products, including, but not limited to, roofing shingles, floor tiles, ceiling materials, cement compounds, textile products, and automotive parts. Asbestos is now strictly regulated as exposure to this toxic mineral can now be directly and scientifically linked to a number of lung and respiratory conditions including mesothelioma.

Asbestos is a generic name given to six fibrous minerals that have been used in commercial products. The six types of asbestos are chrysotile, crocidolite, amosite, anthophyllite asbestos, tremolite asbestos, and actinolite asbestos.

A heat-resistant fibrous silicate mineral that can be woven into fabrics, and is used in fire-resistant and insulating materials such as brake linings.

"asbestos was used for pipe insulation".

Fabric containing asbestos.

There are given types of asbestos. It generally five typestar of asbestos. So types here 1 Amphibole Asbestos. The other five types of asbestos are classified in the amphibole category. Amosite (brown asbestos) and crocidolite (blue asbestos) are considered the most commercially valuable types. Anthophyllite, tremolite and actinolite are the other non-commercial forms of amphibole asbestos.

What is asbestos? Is all asbestos are acid resistant?