Aluminum compounds have many different uses, for example, as alums in water-treatment and alumina in abrasives and furnace linings. (cdc.gov)
example, as alums in water-treatment and alumina in · Eating substances containing high levels of aluminum abrasives and furnace linings. (cdc.gov)
This combination of properties makes calcined alumina useful in abrasives, glass, porcelains, spark plugs, and electrical insulators, but the greatest quantity of calcined alumina is used to obtain aluminum. (britannica.com)
Oxide6
Aluminum oxide exists in several different crystallographic forms, of which corundum is most common. (britannica.com)
Aluminum oxide is the major ingredient in the commercial chemicals known as aluminas. (britannica.com)
Synthetic rubies and sapphires are made commercially by fusing a mixture of high-purity aluminum oxide with colouring agents in an oxyhydrogen blowpipe flame. (britannica.com)
Activated alumina is a porous form of aluminum oxide from which much of the chemically combined water has been driven off at temperatures low enough to avoid sintering. (britannica.com)
Calcined alumina is aluminum oxide that has been heated at temperatures in excess of 1,050 °C (1,900 °F) to drive off nearly all chemically combined water. (britannica.com)
Tabular alumina is aluminum oxide that has been heated to temperatures above 1,650 °C (3,000 °F). Composed of tabletlike crystals, it has high heat capacity and thermal conductivity as well as exceptional strength and volume stability at high temperatures. (britannica.com)
Small amounts9
Small amounts of aluminum can be found dissolved in water. (cdc.gov)
Aluminum is often mixed with small amounts of other metals to form aluminum alloys, which are stronger and harder. (cdc.gov)
Children and adults may be exposed to small amounts of aluminum from vaccinations. (cdc.gov)
Only very small amounts of aluminum that you may inhale, ingest, or have skin contact with will enter the bloodstream. (cdc.gov)
Small amounts (mg) aluminum per day in their food. (cdc.gov)
Living in areas where the air is dusty, where aluminum often mixed with small amounts of other metals to form is mined or processed into aluminum metal, near aluminum alloys, which are stronger and harder. (cdc.gov)
Only very small amounts of aluminum that you may inhale, stay suspended for many days. (cdc.gov)
We do not know if aluminum will affect reproduction in All people have small amounts of aluminum in their bodies. (cdc.gov)
Rubies and sapphires are crystalline, nearly pure varieties of alumina, coloured by small amounts of impurities. (britannica.com)
Compounds2
Aluminum (in compounds combined with other elements) has been found in at least 596 of the 1,699 National Priority List (NPL) sites identified by the Environmental Protection Agency (EPA). (cdc.gov)
Aluminum compounds have many different uses, for naturally high. (cdc.gov)
Antacids9
Eating substances containing high levels of aluminum (such as antacids) especially when eating or drinking citrus products at the same time. (cdc.gov)
Avoid taking large quantities of aluminum-containing develop Alzheimer's disease, but other studies have not found antacids and buffered aspirin and take these this to be true. (cdc.gov)
Aluminum Hydroxide, Magnesium Hydroxide are antacids used together to relieve heartburn, acid indigestion, and upset stomach. (medlineplus.gov)
Tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take while taking Aluminum Hydroxide, Magnesium Hydroxide antacids. (medlineplus.gov)
The following nonprescription or herbal products may interact with Aluminum Hydroxide, Magnesium Hydroxide antacids: aspirin, ferrous sulfate (iron), and multivitamins. (medlineplus.gov)
Some people with kidney disease store a lot of aluminum in their bodies and sometimes develop bone or brain diseases which may be caused by the excess aluminum. (cdc.gov)
Production2
For these reasons, a major use of tabular alumina is in the production of high-quality refractories , the materials used for lining industrial furnaces. (britannica.com)
Aluminum trihydroxide is used extensively in the production of aluminum chemicals, such as aluminum sulfide, sodium aluminate, aluminum fluoride, and aluminum chloride hexahydrate. (britannica.com)
Metal5
Aluminum is the most abundant metal in the earth's crust. (cdc.gov)
Aluminum as the metal is obtained from aluminum-containing minerals. (cdc.gov)
Aluminum metal is light in weight and silvery-white in appearance. (cdc.gov)
Living in areas where the air is dusty, where aluminum is mined or processed into aluminum metal, near certain hazardous waste sites, or where aluminum is naturally high. (cdc.gov)
High-alumina refractories are used in the metal and glass industries in boiler installations, in large furnaces and kilns for smelting metals and firing glass, pottery and porcelain, and in the manufacture of building bricks. (britannica.com)
Form2
Aluminum cannot be destroyed in the environment, it can only change its form. (cdc.gov)
In this form, alumina has great chemical purity, extreme hardness (9 on the Mohs hardness scale, on which diamond is 10), high density, and a high melting point (slightly above 2,050 °C [3,700 °F]). It possesses good thermal conductivity , heat and shock resistance, and high electrical resistivity at elevated temperatures. (britannica.com)
High3
Exposure to high levels of aluminum may result in respiratory and neurological problems. (cdc.gov)
Some studies show that people exposed to high levels of aluminum may develop Alzheimer's disease, but other studies have not found this to be true. (cdc.gov)
In still another application, an aluminous insulating material is formed by melting alumina and silica in an electric furnace and subjecting the molten mixture to high-velocity gases to produce fine white fibres. (britannica.com)
Water2
Everyone is exposed to low levels of aluminum from food, air, water, and soil. (cdc.gov)