Heatproof mat

Last updated
An asbestos heatproof mat over a Teclu burner A laboratory heat spreader made of asbestos, over Teclu burner.jpg
An asbestos heatproof mat over a Teclu burner

A heatproof mat is a piece of apparatus commonly used in tabletop lab experiments that involve moderate temperatures (for example, when a Bunsen burner is being used) to prevent damage to a work surface. They may also be used for domestic equipment, such as hair straighteners, hair dryers or other hot objects.

Traditionally, such mats were made of asbestos, often reinforced with a metal mesh, but fiberglass or other substitutes are now used because of the toxicity of asbestos fibres.


Related Research Articles

Fiber Natural or synthetic substance made of long, thin filaments

Fiber or fibre is a natural or man-made substance that is significantly longer than it is wide. Fibers are often used in the manufacture of other materials. The strongest engineering materials often incorporate fibers, for example carbon fiber and ultra-high-molecular-weight polyethylene.

Glass fiber Material consisting of numerous extremely fine fibers of glass

Glass fiber is a material consisting of numerous extremely fine fibers of glass.

Vermiculite Hydrous phyllosilicate mineral which expands significantly when heated

Vermiculite is a hydrous phyllosilicate mineral which undergoes significant expansion when heated. Exfoliation occurs when the mineral is heated sufficiently, and commercial furnaces can routinely produce this effect. Vermiculite forms by the weathering or hydrothermal alteration of biotite or phlogopite. Large commercial vermiculite mines currently exist in the United States, Russia, South Africa, China, and Brazil.

Mesothelioma Cancer associated with asbestos

Mesothelioma is a type of cancer that develops from the thin layer of tissue that covers many of the internal organs. The most common area affected is the lining of the lungs and chest wall. Less commonly the lining of the abdomen and rarely the sac surrounding the heart, or the sac surrounding the testis may be affected. Signs and symptoms of mesothelioma may include shortness of breath due to fluid around the lung, a swollen abdomen, chest wall pain, cough, feeling tired, and weight loss. These symptoms typically come on slowly.

Asbestosis Pneumoconiosis caused by inhalation and retention of asbestos fibers

Asbestosis is long-term inflammation and scarring of the lungs due to asbestos fibers. Symptoms may include shortness of breath, cough, wheezing, and chest tightness. Complications may include lung cancer, mesothelioma, and pulmonary heart disease.

Chrysotile The most commonly encountered form of asbestos

Chrysotile or white asbestos is the most commonly encountered form of asbestos, accounting for approximately 95% of the asbestos in the United States and a similar proportion in other countries. It is a soft, fibrous silicate mineral in the serpentine subgroup of phyllosilicates; as such, it is distinct from other asbestiform minerals in the amphibole group. Its idealized chemical formula is Mg3(Si2O5)(OH)4. The material has physical properties which make it desirable for inclusion in building materials, but poses serious health risks when dispersed into air and inhaled.

Claire's is an American retailer of accessories, jewelry, and toys primarily aimed toward tween and teen girls. It was founded in 1961 and is based in Hoffman Estates, Illinois, a suburb of Chicago. The company is primarily owned by Elliott Management and Monarch Alternative Capital.

USG Corporation Manufacturing company

USG Corporation, also known as United States Gypsum Corporation, is an American company which manufactures construction materials, most notably drywall and joint compound. The company is the largest distributor of wallboard in the United States and the largest manufacturer of gypsum products in North America. It is also a major consumer of synthetic gypsum, a byproduct of flue-gas desulfurization. Its corporate offices are located at 550 West Adams Street in Chicago, Illinois.

Owens Corning American manufacturer of building materials

Owens Corning is an American company that develops and produces insulation, roofing, and fiberglass composites and related materials and products. It is the world's largest manufacturer of fiberglass composites. It was formed in 1935 as a partnership between two major American glassworks, Corning Glass Works and Owens-Illinois. The company employs approximately 19,000 people around the world. Owens Corning has been a Fortune 500 company every year since the list was created in 1955. The Pink Panther acts as the company's mascot and appears in most of their advertisements.

Asbestos-ceramic is a type of pottery manufactured with asbestos and clay in Finland, Karelia and more widely in Fennoscandia from around 5,000 BCE. Some remnants of this style of pottery lasted until as late as 200 CE. These ceramics are able to retain heat (“adiabatic”) longer than other pottery.

Backbreaker

Backbreaker refers to a kind of professional wrestling move which sees a wrestler dropping an opponent so that the opponent's back impacts or is bent backwards against a part of the wrestler's body, usually the knee. The standard version of the move sees the wrestler scoop their opponent horizontally before dropping to one knee, slamming the opponent's back on their other knee.

Artificial hair integrations, more commonly known as hair extensions, hair weaves, and fake hair add length and fullness to human hair. Hair extensions are usually clipped, glued, or sewn on natural hair by incorporating additional human or synthetic hair. These methods include tape-in extensions, clip-in or clip-on extensions, micro/nano rings, fusion method, weaving method, and wigs.

Gooch crucible

A Gooch crucible, named after Frank Austin Gooch, is a filtration device for laboratory use. It is convenient for collecting a precipitate directly within the vessel in which it is to be dried, possibly ashed, and finally weighed in gravimetric analysis.

A facebuster, also known as a faceplant, is generally a takedown move in professional wrestling in which an attacking wrestler forces their opponent down to the mat face-first without involving a headlock or facelock. A standard facebuster, also known as a jumping facebuster, involves the wrestler grabbing hold of the opponent's head/hair and dropping down to their knees, forcing the opponent's face into the mat.

Asphalt shingle Type of shingle

An asphalt shingle is a type of wall or roof shingle that uses asphalt for waterproofing. It is one of the most widely used roofing covers in North America because it has a relatively inexpensive up-front cost and is fairly simple to install.

Bituminous waterproofing Roll roofing and waterproofing material

Bituminous waterproofing systems are designed to protect residential and commercial buildings. Bitumen is a mixed substance made up of organic liquids that are highly sticky, viscous, and waterproof. These systems are sometimes used to construct roofs, in the form of roofing felt or roll roofing products.

Dog grooming Care and cleaning of a dog

Dog grooming refers to both the hygienic care and cleaning of a dog, as well as a process by which a dog's physical appearance is enhanced for showing or other types of competition. A dog groomer is a person who earns their living grooming dogs.

Asbestos Group of highly stable, non-flammable silicate minerals with a fibrous structure

Asbestos is a naturally occurring fibrous silicate mineral. There are six types, all of which are composed of long and thin fibrous crystals, each fibre being composed of many microscopic "fibrils" that can be released into the atmosphere by abrasion and other processes. Inhalation of asbestos fibres can lead to various dangerous lung conditions, including mesothelioma, asbestosis, and lung cancer, so it is now notorious as a serious health and safety hazard.

BoRit Asbestos Superfund site in Pennsylvania

The BoRit Asbestos Superfund site is a 32-acre (13 ha) waste dump and reservoir in Ambler, Upper Dublin Township and Whitpain Township, Pennsylvania that was contaminated with 1.5 million cubic yards of asbestos containing material due to the waste disposal practices of the Keasbey and Mattison (K&M) Company and Turner and Newall from 1897 to 1962. The site is named BoRit after Bob Rittenhouse, one of the recent owners of the site.

<i>Leucospermum spathulatum</i> The Cederberg pincushion is a shrub in the family Proteaceae from the Western Cape of South Africa

Leucospermum spathulatum is an evergreen, spreading and mat-forming shrub, that has been assigned to the family Proteaceae. It has inverted egg-shaped to spade-shaped mostly greyish softly hairy leaves, mostly without teeth and flattened globe-shapec flower heads of 5–7 cm (2.0–2.8 in) across, consisting of deep orange to crimson flowers, the bud and the style curving toward the center. It can be found in the Western Cape province of South Africa. The common name in English is Cederberg pincushion. It flowers between September and January, with a peak at the end of October.