### element | metal | aluminum:

Aluminum foil
* Most aluminum foil has low mass
* Take heavy duty foil to be used for cooking and signalling.
* are one common material.
* facing serves both as a vapor retarder and a radiant barrier.
* helps to keep warm foods warm and comes in handy for a quick clean-up of the grill.
* is aluminum
  - consumable products
  - lighter in weight and is quite effective also
  - located in trash
  - the most effective material for blocking radiant heat, especially from the sun
* is used as a wrapping material
  - because it is light so it moves even with small electrostatic forces
  - useful to wrap the fish to cook over hot embers
* reflects sunlight and keeps soil cool.

Aluminum sulfate
* is added as a coagulant to help make suspended solids larger to help filtration.
* is added to help the solids bind together for later removal
  - the contents of the tank for coagulation and flocculation to occur
  - inorganic compounds
  - ionic compounds
  - salt
  - used in water purification
  - water soluble and can be applied on soil and watered in

Aluminum toxicity
* can also cause an anemia in hemodialysis patients.
* restricts root growth and phosphorous uptake.

Anodized aluminum
* is somewhat harder than untreated aluminum.
* natural for arena boards.

Molten aluminum
* collects at the bottom of the tank, and oxygen is liberated at the anode.
* is poured into a steel mould, where it cools and hardens around the truck axle.

Potassium alum
* are chemical compounds.
* common hardening agent.
  - one of the worlds finest astringents

Recycled aluminum
* is an indispensable supply source for aluminum producers and fabricators.
* is used for cans, lawn furniture, foil, airplanes, automobiles, etc
* makes up about one-third of America's aluminum supply.
* uses only a fraction of the electricity required by bauxite smelters.

Secondary aluminum
* is aluminum recovered from both new and old purchased scrap.
* uses five percent of the energy required to produce primary aluminum.

### element | metal | antimony:

Antimony pentoxide
* is used in fire retardants and the making of titanium dioxide.
+ Antimony pentoxide, Uses: Antimony compounds :: Oxides
  * Antimony pentoxide is used in fire retardants and the making of titanium dioxide. It is also used as a catalyst.

### element | metal | antimony:

Antimony trichloride
* colorless and soft solid that has a strong odor.
* white or pale yellow solid.
+ Antimony trichloride, Properties: Antimony compounds :: Chlorine compounds
  * Antimony trichloride is a white or pale yellow solid. It has a strong odor and absorbs water from the air. It reacts with water to make antimony trioxide and hydrochloric acid or hydrogen chloride.
+ Antimony, Properties, Chemical compounds: Chemical elements :: Semimetals
  * They are made by reacting antimony with other metals. They react with acids to make the toxic and unstable gas stibine. They are weak oxidizing agents. They are somewhat covalent, having low melting points. Antimony trichloride is a colorless and soft solid that has a strong odor. Antimony trioxide is a white solid that dissolves a little in water. Antimony pentafluoride is highly reactive, as well as antimony pentoxide.

Metallic antimony
* is an extremely brittle metal of a flaky, crystalline texture
  - precipitated from solutions by hydrogen at high temperature and pressure
  - relatively non-toxic, but most antimony compounds are poisonous
* reacts with iron at the melting point of the former.

Base metal
* Most base metals remain weak in line with the global economic slowdown.
* are usually steel, brass, pewter or copper.
* can also lie within sedimentary and volcanic rock associations.
* catch-all term in the jewelry industry for metals used in costume jewelry.
* is metal
  - metallic elements