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Molecular formula : no
MW : No
CAS No. :7782-42-5
nature : a dark gray with a metallic sheen of Ni Hua material. 3527 ° C melting point. The relative density of 1.9-2.2. Carbon is the same-isomer, with good heat conductivity and, at room temperature chemical lively sexual restrictions small.
Preparation : Graphite mineral raw materials by hydrofluoric acid, hydrochloric acid purification Pure be pure graphite powder. The first purification : raw materials graphite content of about 89%, containing silica, iron and other impurities. The lining of vinyl chloride from the reaction inside the barrel, by adding graphite powder, hydrochloric acid, hydrofluoric acid, steam heated to 120 ° C for several hours after mixing with water washing into centrifuges to neutral. After the purification of graphite with dry air dryer, and then using the almighty fight powder machine broken particles to 325 degrees, then airflow, particle degrees Centigrade 1.5u around. Airflow through the graphite powder accompanied pure pulp mill in vibration vibration within a few days, this graphite materials under different particles in the water velocity different grading. After grade graphite material, after grinding vibration, mixed with more impurities, the need for a second purification, purification method and the first purified the same. After the purification of graphite powder ash not more than 0.5%, according to the corresponding allocation uses stabilizer, the ball mill for grinding mixed, in all types of products. For example, dubbed finishes, powder, liquid, etc..
purposes : water shortages for the refractory metals lubricants, industrial glass coated model agent to increase conductivity and heat insulation material, the electronics industry for the production of screen cover or conductive coating. High temperatures for powder lubricant base material, corrosion resistance weeping slip base material, rubber, plastic filler, carbon membrane preparation Yin and electrohydraulic. Oil for lubricants, heat sealing grease, mold release agents, etc..
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