What are the good uses of sodium metal besides hydrogen production?

Sodium metal is widely used and has great industrial value.

It is mainly used to prepare sodium cyanide from ammonia water; Using the strong reducibility of sodium to replace potassium oxide to produce metallic potassium; Titanium tetrachloride is reduced to sponge titanium, and it can also be made into rare metals such as tantalum and niobium. Using the property that sodium is easy to form alloy, lead-sodium alloy is prepared, tetraethyl lead is produced, the octane number of gasoline is improved, and the antiknock ability is increased. Preparing potassium-sodium alloy as coolant; Using the property that sodium is easily oxidized, sodium peroxide is produced as bleaching agent in bleaching industry, but it cannot be made into sodium peroxide as artificial oxygen source; Produce sodium hydride as rust remover for zinc iron plate in metallurgical industry; Sodium amido produced by the reaction of metal sodium with ammonia is used as an intermediate for preparing indigo powder in dye industry. Production of pharmaceutical intermediates, such as sodium borohydride, trimethyl orthoformate and triethyl formate;

High purity sodium can be used as a heat carrier for atomic reactors.