ablerest.blogg.se

Sodium is, after chloride, the second most abundant element dissolved in seawater. Sodium is the sixth most abundant element in The Earth’s crust, which contains 2,83% of sodium in all its forms. Solid sodium carbonate is needed to make glass. Other uses are: to improve the structure of certain alloys in soap, in combination with fatty acids, in sodium vapor lamps, to descal metals, to purify molten metals. Sodium is also a component of sodium chloride (NaCl) a very important compount found everywhere in the living environment. Sodium in its metallic form is very important in making esters and in the manufacture of organic compounds. The second type of reaction includes the replacement of halogen by sodium, to obtain a sodium organic compound. One of them requires the condensation of two organic compounds, which form halogens when those are eliminated. There are two general reactions with organic halides. The reaction of sodium with alcohols is similar to the reaction of sodium with water, but slower. Sodium doesn’t react with paraffinic hydrocarbons, but it forms addition compounds with naphthalene and other aromatic polycyclic compounds and with aryl alkenes. It also reacts with various metallic halides to form the metal and sodium chloride. Sodium hardly reacts with carbon, but it does react with halogens. Sodium and hydrogen react above 200✬ (390✯) to form sodium hydride. Sodium doesn’t react with nitrogen, not even at very high temperatures, but it can react with ammonia to form sodium amide.

When it’s exposed to air, metallic sodium recently cut looses its silvery appearance and acquires an opaque grey colour due to the formation of a sodium oxide coating.

Sodium reacts quickly with water, and also with snow and ice, to produce sodium hydroxide and hydrogen. From the commercial point of view, sodium is the most important of all the alkaline metals. It’s a soft metal, reactive and with a low melting point, with a relative density of 0,97 at 20✬ (68✯). Sodium - Na Chemical properties of sodium - Health effects of sodium - Environmental effects of sodiumĬhemical element, symbol: Na, atomic number: 11 and atomic weight 22,9898. Separation and Concentration Purification Request.Plant Inspection & Process Optimalisation.