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The point at which chemically equivalent amounts of reactants have reacted.

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xanthate

A salt or ester of xanthic acid. Many xanthates have a yellow color. Xanthates are used as flotation agents in mineral processing.

Biodegradability

The ability of a substance to be broken down into simpler substances by bacteria.

 

Safranine

Also called "phenosafranine". A purplish-red, water-soluble dye, C18H14N4, used for textiles and as a stain in microscopy.

Excited State

Any state other than the ground state of an atom or molecule.

Dermal toxicity

Adverse health effects resulting from skin exposure ot a substance.

Electrolyte

A substance whose aqueous solutions conduct electricity.

 

Formula Unit

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

Standard Reaction

A reaction in which the numbers of moles of reactants shown in the balanced equation, all in their standard states, are completely converted to the numbers of moles of products shown in the balanced equation, also sall at their standard state.

Ground State

The lowest energy state or most stable state of an atom, molecule or ion.

Polydentate

Refers to ligands with more than one donor atom.