Chemistry Fundamentals: Organic, Biochemical, and Metallurgical Chemistry

Methylaluminoxane, is pyrophoric, and is violently reactive with any chemical bearing an acidic proton. However, it is generally used as a solution in an (aromatic) hydrocarbon due to its relatively high solubility in such hydrocarbons.It is most well known for being a co-catalyst for olefin polymerizations of the Ziegler-Natta type.

Aluminium antimonide (AlSb) is a semiconductor of the group III-V family containing aluminium and antimony. The lattice constant is 0.61 nm. The indirect bandgap is approximately 1.6 eV at 300 K, whereas the direct band gap is 2.22 eV. It can be alloyed with other III-V materials to produce the following ternary materials: AlInSb, AlGaSb and AlAsSb.

The Monsanto process is an important method for the manufacture of acetic acid by catalytic carbonylation of methanol. This process operates at a pressure of 30-60 atm and a temperature of 150-200 °C and gives a selectivity greater than 99%.

An alkyne trimerisation reaction is a 2+2+2 cyclisation reaction in which three alkyne molecules react to form an aromatic compound. The reaction is 'pseudo' pericyclic since it has not been observed to occur without the assistance of metal catalysis; and the metal catalyst assembles the ring stepwise via intermediates which are not directly in between (in a geometric sense) the starting material and products.

Organomagnesium compounds are widespread. They are commonly found as Grignard reagents. The formation of alkyl or aryl magnesium halides (RMgX) from magnesium metal and an alkyl halide is attributed to a SET process. Examples of Grignards are phenylmagnesium bromide and ethylmagnesium bromide.

Aluminium gallium nitride (AlGaN) is a semiconductor material. It is an alloy of aluminium nitride and gallium nitride. AlGaN is used to manufacture light-emitting diodes operating in blue to ultraviolet region, where wavelengths down to 250 nm (far UV) were achieved. It is also used in blue semiconductor lasers. AlGaN layers can be also grown on sapphire.

This process is generally used for the concentration of sulphide ores. In this method the ore is taken in an iron tank along with a mixture of water and pine oil. The mixture is vigorously agitated by blowing compressed air. The oil forms a froth with air. The metallic ore particles get stick to the forth and rise to the surface as scum.The impurities are wetted by water and will settle down at the bottom .The froth containing the metallic ore particles is skimmed off and dried.

Conditional constants, also known as apparent constants, are concentration quotients which are not true equilibrium constants but can be derived from them. A very common instance is where pH is fixed at a particular value.

Gallium antimonide (GaSb) is a semiconducting compound of gallium and antimony of the III-V family. It has a lattice constant of about 0.61 nm. GaSb can be used for infrared detectors, infrared LED's, lasers,  transistors and thermophotovoltaic systems.

Pikachurin is a polysaccharide that in humans is encoded by the EGFLAM gene.Pikachurin is a dystroglycan-interacting polysaccharide which has an essential role in the precise interactions between the photoreceptor ribbon synapse and the bipolar dendrites.

This process is employed for purification of volatile metals like mercury, zinc and cadmium. The impure metal is heated in a retort and its vapours are separately condensed in a receiver. While the pure metal distills over, the non-volatile impurities are left behind in the retort.

Sodium and potassium are necessary for the electrical activities of the nerves and for the contraction of muscles.

Tau proteins are proteins that stabilize microtubules. They are abundant in neurons in the central nervous system and are less common elsewhere. When tau proteins are defective, and no longer stabilize microtubules properly, they can result in dementias such as Alzheimer's disease.

Keratin refers to a family of fibrous structural proteins. Keratin is the key structural material making up the outer layer of human skin. It is also the key structural component of hair and nails.