Coal

Coal

Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams. The harder forms, such as anthracite coal, can be regarded as metamorphic rock because of later exposure to elevated temperature and pressure. Coal is composed primarily of carbon along with variable quantities of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen.

Industry: Energy

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Coal

Microcrystalline wax

Energy; Coal

Wax extracted from certain petroleum residues having a finer and less apparent crystalline structure than paraffin wax and having the following physical characteristics penetration at 77 degrees ...

Indirect uses (end-use category)

Energy; Coal

The end-use category that handles boiler fuel. Fuel in boilers is transformed into another useful energy source, steam or hot water, which is in turn used in other end uses, such as process or space ...

Industrial restrictions (coal)

Energy; Coal

Land-use restrictions that constrain, postpone, or prohibit mining in order to meet other industrial needs or goals; for example, resources not mined due to safety concerns or due to industrial or ...

Mid-size passenger car

Energy; Coal

A passenger car with between110 and 119 cubic feet of interior passenger and luggage volume.

Light water

Energy; Coal

Ordinary water (H2O), as distinguished from heavy water or deuterium oxide (D2O).

Industrial production

Energy; Coal

The Federal Reserve Boardcalculates this index by compiling indices of physical output from avariety of agencies and trade groups, weighting each index by the Census' value added, and adding it to ...

Microwave oven

Energy; Coal

A household cooking appliance consisting of a compartment designed to cook or heat food by means of microwave energy. It may also have a browning coil and convection heating as additional features.