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The solid form of mixed uranium oxide, which is produced from uranium ore in the uranium recovery (milling) process.

The material is a mixture of uranium oxides, which can vary in proportion and color from yellow to orange to dark green (blackish) depending on the temperature at which the material is dried (which affects the level of hydration and impurities), with higher drying temperatures producing a darker and less soluble material.

Yellowcake was commonly referred to as U3O8, because that chemical compound historically comprised the majority of the yellowcake produced by uranium recovery facilities utilizing conventional milling methods.

Most modern uranium recovery facilities utilize in situ recovery methods and produce a yellowish compound comprised mostly of uranyl peroxide dihydrate. This material is then transported to a uranium conversion facility, where it is transformed into uranium hexafluoride (UF6), in preparation for fabricating fuel for nuclear reactors.

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Distilland

The material in a distillation apparatus that is to be distilled.

Covalent Bond

Chemical bond formed by the sharing of one or more electron pairs between two atoms.

Dry Cells

Ordinary batteries (voltaic cells) for flashlights. radios, and so on, many are Leclanche cells.

Hydration Energy

The energy change accompanying the hydration of a mole of gase and ions.

Kinetic Energy

Energy that matter processes by virtue of its motion.

Avogadro's Number

The number (6.022x10^23) of atoms, molecules or particles found in exactly 1 mole of substance.

Deposition

The direct solidification of a vapor by cooling, the reverse of sublimation.

Amphoterism

The ability to react with both acids and bases.Ability of substance to act as either an acid or a base.

Electronegativity

A measure of the relative tendency of an atom to attract electrons to itself when chemically combined with another atom.

Standard Molar Volume

The volume occupied by one mole of an ideal gas under standard conditions, 22.4liters.