Inorganic chemistry is the branch of chemistry concerned with the properties and behavior of inorganic compounds. This field covers all chemical compounds except the myriad organic compounds (carbon based compounds, usually containing C-H bonds), which are the subjects of organic chemistry. The distinction between the two disciplines is far from absolute, and there is much overlap, most importantly in the sub-discipline of organometallic chemistry.
Many inorganic compounds are salts, consisting of cations and anions joined by ionic bonding. Examples of salts are magnesium chloride MgCl2, which consists of magnesium cations Mg2+ and chloride anions Cl-; or sodium oxide Na2O, which consists of sodium cations Na+ and oxide anions O2-. In any salt, the proportions of the ions are such that the electric charges cancel out, so that the bulk compound is electrically neutral. The ions are described by their oxidation state and their ease of formation can be inferred from the ionization potential (for cations) or from the electron affinity (anions) of the parent elements.
Important classes of inorganic salts are the oxides, the carbonates, the sulfates and the halides. Many inorganic compounds are characterized by high melting points. Inorganic salts typically are poor conductors in the solid state. Another important feature is their solubility in e.g. water, and ease of crystallization. Where some salts (e.g. NaCl) are very soluble in water, others (e.g. SiO2) are not.
The simplest inorganic reaction is double displacement when in mixing of two salts the ions are swapped without a change in oxidation state. In redox reactions one reactant, the oxidant, lowers its oxidation state and another reactant, the reductant, has its oxidation state increased. The net result is an exchange of electrons. Electron exchange can occur indirectly as well, e.g. in batteries, a key concept in electrochemistry.
When one reactant contains hydrogen atoms, a reaction can take place by exchanging protons in acid-base chemistry. In a more general definition, an acid can be any chemical species capable of binding to electron pairs is called a Lewis acid; conversely any molecule that tends to donate an electron pair is referred to as a Lewis base. As a refinement of acid-base interactions, the HSAB theory takes into account polarizability and size of ions.
Inorganic compounds are found in nature as minerals. Soil may contain iron sulfide as pyrite or calcium sulfate as gypsum. Inorganic compounds are also found multitasking as biomolecules: as electrolytes (sodium chloride), in energy storage (ATP) or in construction (the polyphosphate backbone in DNA).
The first important man-made inorganic compound was ammonium nitrate for soil fertilization through the Haber process. Inorganic compounds are synthesized for use as catalysts such as vanadium(V) oxide and titanium(III) chloride, or as reagents in organic chemistry such as lithium aluminium hydride.
Subdivisions of inorganic chemistry are organometallic chemistry, cluster chemistry and bioinorganic chemistry. These fields are active areas of research in inorganic chemistry, aimed toward new catalysts, superconductors, and therapies.
|Courses/Topics we help on|
|Qualitative Analysis||Confidence Interval for Mean & Proportions||Nomenclature of Inorganic Compounds|
||Inter Molecular Force|
|Lewis Structure-VSEPR Theory-Shapes of Molecular Models||Chemical Kinetics||Concentration of Solution: Molarity, Molality and Normality|
|Clausius-Clapeyron Equation||Nomenclature of Organic Compounds||Fundamentals of Organic Chemistry|
|Balancing the Chemical Equation by Ion-Electron Method or Redox Method||Classification of Chemical Reactions||Chemistry of Transition Elements|
|Coordination Chemistry||Molecular and Empirical Formula of Organic and Inorganic Compounds||Gas Laws, Charles Law, Boyle's Law, Ideal and Real Gas Equation|
|Periodic Properties of Elements||Substitution and Elimination Reaction||ThermoChemistry|
|Chemical Equilibrium||Rate Law, Order and Molecularity||Nuclear Chemistry|
|Fundamentals of Inorganic Chemistry||Chemistry of Representative Elements||Isomerism in Organic and Inorganic Compounds|
|Electronic Configuration of Elements||Parametric Equations||IB Chemistry|
|IUPAC nomenclature||Chemical bonding||Isomerism|
|Chemical kinetics||Chemical equilibrium||Reward Management|
|Co-ordination chemistry||Nuclear chemistry||Stereochemistry|
|Group theory||Organic reaction mechanism||Organometallic complexes|
|Reagents in organic synthesis||Natural products||Quantum chemistry|