Calculated chemical data of sodium borohydride

Calculated chemical data of sodium borohydride

Reference value for hydrophobic parameter calculation (xlogp): 0

Number of hydrogen bond donors: 0

Number of hydrogen bond receptors: 1

Number of rotatable chemical bonds: 0

Number of tautomers: 0

Topological molecular polarity surface area: 0

Number of heavy atoms: 2

Surface charge: 0

Complexity: 2

Number of isotope atoms: 0

Determine the number of atomic stereocenters: 0

Number of uncertain atomic stereocenters: 0

Determine the number of chemical bond stereocenters: 0

Number of indeterminate chemical bond stereocenters: 0

Number of covalent bond units: 2

Application scope of sodium borohydride

Sodium borohydride can be used as reducing agent for aldehydes, ketones and acyl chloride, intermediate for manufacturing potassium borohydride, raw material for manufacturing ethylborane and other high-energy fuels, foaming agent for plastic industry, treatment agent for mercury containing sewage in papermaking industry, papermaking bleaching agent, and hydrogenation agent for manufacturing dihydrostreptomycin in pharmaceutical industry. The hydrogen of sodium borohydride shows - 1 valence here and has strong reducibility. It can reduce inorganic substances with certain oxidation. It is mainly used to reduce - COOH to - CH2OH in organic synthesis, which is known as "universal reducing agent". Its performance is stable and selective in reduction. Sodium borohydride provides organic chemists with a very convenient and mild means of reducing aldehydes and ketones. Before that, metal / alcohol method is usually used to reduce carbonyl compounds, while sodium borohydride can realize the reduction of aldehyde and ketone carbonyl under very mild conditions to produce primary and secondary alcohols. As a reducing agent, sodium borohydride can be used in electroless plating of non-ferrous metals, especially in electroless nickel plating. The most commonly used reducing agent for electroless nickel plating is sodium hypophosphite. The nickel plated with this reducing agent is mainly nickel phosphorus alloy. The use of sodium borohydride as reducing agent is to obtain nickel boron alloy, but the content of boron in the coating is far less than the phosphorus content of the coating used by another reducing agent. In electroless plating, in theory, the amount of nickel that can be reduced by sodium borohydride per unit substance is four times that of sodium hypophosphite, and the addition amount is much less than that of sodium hypophosphite. However, sodium borohydride is easy to decompose, so it is necessary to keep the pH of the plating solution above 12, otherwise the plating solution will fail, and the accumulation of sodium metaborate, the oxidation product of sodium borohydride, will also have an adverse impact on the plating solution.