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A technique for observing the temperature, direction, and magnitude of thermally induced transitions in a material by heating/cooling a sample and comparing its temperature with that of an inert reference material under similar conditions.

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Isomers

Different substances that have the same formula.

Titration

A Procedure in which one solution is added to another solution until the chemical reaction between the two solutes is complete, the concentration of one solution is known and that of the other is unknown.

 

Hydration

Reaction of a substance with water.

Exothermicity

The release of heat by a system as a process occurs.

Dermal toxicity

Adverse health effects resulting from skin exposure ot a substance.

Dipole

Refers to the separation of charge between two covalently bonded atoms.

Radioactivity

The spontaneous disintegration of atomic nuclei.

Nitric Acid

HNO3: A strong acid, it is toxic and can cause severe burns. Transparent colorless or yellowish, fuming, suffocating, caustic and corrosive liquid. Nitric acid boiling point is 83C. A 70 percent solution is used in the S.S.E. laboratory for junction depth measurements. Nitric acid is also present in the metal etch solution used for the Aluminum etch procedure.

Anion

A negative ion, an atom or goup of atoms that has gained one or more electrons.

 

Solvent

The dispersing medium of a solution.