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A white, needlelike, crystalline, water-soluble solid or syrup, C6H10O8, usually made by the oxidation of cane sugar, glucose, or starch by nitric acid. Also called "Glucaric acid."

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Bond Energy

The amount of energy necessary to break one mole of bonds of a given kind (in gas phase).The amount of energy necessary to break one mole of bonds in a substance, dissociating the sustance in the gaseous state into atoms of its elements in the gaseous state.

Associated Ions

Short-lived species formed by the collision of dissolved ions of opposite charges.

Formula Unit

The smallest repeating unit of a substance. The molecule for nonionic substances

Secondary Standard

A solution that has been titrated against a primary standard. A standard solution is a secondary standard.

 

PseudobinaryIonic Compounds

Compounds that contain more than two elements but are named like binary compounds.

Metallic Bonding

Bonding within metals due to the electrical attraction of positively charges metal ions for mobile electrons that belong to the crystal as a whole.

Phosphorus Oxychloride

Colorless to slightly yellow fuming liquid.

Mol. Wt.: 153.39
M.P.: 20C
B.P.: 105.1C
Density: 1.685 @ 15.5C
Vapor Pressure: 40 mm @ 27.3C
Vapor Density: 5.3
Used as the phosphorus source for phosphorus diffusion.

Hydrate

A solid compound that contains a definite percentage of bound water.

Covalent Bond

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

Dubnium

Discovered : at both Berkeley, California, USA, and Dubna, near Moscow, Russia in 1970. Description:A highly radioactive metal which does not occur naturally, and of which only a few atoms have ever been made. It is of research interest only. Origin:The element is named after the Russian town of Dubna.