Carbon is a nonmetallic element in the IVA group of the second period bai table. Latin for Carbonium, meaning “coal, charcoal”. The Chinese character “carbon” is composed of the charcoal “carbon” and the stone word, from the “carbon” sound. Carbon is a very common element, widely present in many forms in the great Chemicalbook gas and the earth’s crust. Carbon has long been known and used, and a series of compounds of carbon, organics, are fundamental to life. Carbon is a constituent of pig iron, wrought iron and steel. Carbon is a biologically and commercially important molecule that chemically binds itself to form a large number of compounds. Most molecules in living things contain carbon.
Black powdery or granular porous crystals. Boiling point 4827℃, 3652℃ sublimation, relative density about 1.8-2.1, performance relative density about 0.08-0.45.
(1) gas purification, such as using activated carbon to recover solvent from the air containing solvent vapor; Using activated carbon filtration method to deodorize the air; Or used in gas masks and industrial respirators to protect against toxic substances.
(2)Gas separation, such as benzene recovery from city gas, gasoline, propane and butane recovery from natural gas, used for the treatment of waste gas in fischer-tropsch synthesis, in order to recover hydrocarbons. (3)liquid phase adsorption such as in the sugar industry with Chemicalbook activated carbon adsorption method to decolorize sugar liquid, in the chemical industry with activated carbon to decolorize organic substances, with activated carbon purification of organic impurities in the electroplating bath, to ensure the quality of electroplating surface or used for wastewater dephenolization.
(4). Catalysts or catalyst carriers such as catalysts used for industrial gas desulfurization and phosgene production, etc. Therefore, activated carbon is widely used in sugar, alcohol processing, oil refining, pharmaceutical, reagent, gold, water purification, environmental protection, recovery of solvents and other steam and other aspects.
Melting point: 3550 ° C (lit.)
Boiling point: 500-600 ° C (lit.)
Density: 1.7 g/mLat25 ° C (lit.)
Vapor pressure: & lt; 0.1 mmHg (20 ° C)
Flash: & gt; 230 °
F Storage conditions: NoRestrictions.
Specific gravity : 1.8 ~ 2.1(Amorphous)