Graphite Specialties
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Graphite Specialties Broad Base. Best Solutions.

SGL Group – The Carbon Company We are SGL Group – The Carbon Company, one of the worldwide leading manufacturers of carbon-based products. We have an in-depth materials, production, applications and engineer­ng expertise, a comprehensive graphite and carbon fiberi based product portfolio, and an integrated value chain from carbon fibers to composites. We operate close to our customers through a global sales network and state-of-the-art production sites in Europe, North America and Asia. With this Broad Base, we offer Best Solutions to our customers with the help of our Company philosophy of...

Graphite Specialties Customized Products for Key Industries The Business Line Graphite Specialties includes the four Business Segments Industrial Applications, Electronic Applications, High-Temperature Applications and Automotive & Mechanical Applications. Industrial Applications Electronic Applications Our comprehensive range of materials extends from isostatically molded, extruded, die-molded and vibration-molded graphite through to carbon and graphite felt and carbon fiber-reinforced carbon. We optimize them to the needs of our customers by drawing on our expertise in the planning,...

Chemical Resistance of Carbon and Graphite Chemical properties Carbon is insoluble and does not melt. Chemically, it is one of the most resistant materials. Organic chemistry Carbon is resistant to nearly all organic media. This class includes the intermediate and final products of the following industries: • • • • • • • • • Petrochemistry Coal purification Synthetics Paints and varnishes Cosmetics Foodstuffs Photochemicals Refrigerants Antifreezes Inorganic chemistry Carbon is also resistant to most inorganic media, e.g. to most acids and alkalis, aqueous salt solutions and to most...

No formulas are given for a number of media which are chemically considered as mixtures. They typically include fruit juices, beer, milk, oil and petroleum. These mixtures are marked a). Compounds with a cyclic or complex structure: These compounds are marked b). Carbon is not resistant, or resistant only up to certain concentrations and temperatures, when in contact with some alkalis and halogens, as well as some highly oxidizing inorganic acids. Carbon is not resistant, either, to liquid sodium or potassium, which form intercalation compounds with carbon. These cause a marked increase in...

Chemical Resistance Medium Without impregnation With impregnation Resin Acetic acid Acetic acid anhydride Acetic acid ethyl ester Acetic acid methyl ester Acetyl chloride + + + (Temperature: (Temperature: (Temperature: 200 °C) Alkacide solution Allyl acetone Allyl chloride Aluminum acetate (aqueous solution) Aluminum chloride (aqueous solution) Aluminum fluoride (aqueous solution) Aluminum nitrate (aqueous solution) Aluminum sulfate (aqueous solution) Amino acid Ammonium acetate Ammonium carbonate (aqueous solution) Ammonium chloride (aqueous solution) Ammonium nitrate (aqueous solution)...

Chemical Resistance Medium Without impregnation With impregnation Resin Ammonium sulfite Ammonium thiocyanate aqueous solution) ( Amyl acetate Amyl alcohol Arsenic acid Arsenious acid (aqueous solution) (aqueous solution) Benzene-sulfonic acid Benzoic acid Benzyl chloride Borax solution Boric acid (aqueous) (aqueous solution) Butyl acetate Butyl acrylate Butyl phosphate Butyric acid

Chemical Resistance Medium Without impregnation With impregnation Resin (aqueous solution) Calcium chloride (aqueous solution) (aqueous solution) Calcium hydroxide (aqueous solution) Calcium nitrate (aqueous solution) Calcium hydrogen Carbon dioxide Carbon dioxide Carbon disulfide Carbon monoxide Carbon tetrachloride Chloroacetic acid Chromic alum (aqueous solution) Citric acid (aqueous solution) Copper acetate (aqueous solution) Croton aldehyde (aqueous solution) (Schweitzer’s reagent) Cyclohexamine

Chemical Resistance Medium Without impregnation With impregnation Resin Dimethyl formamide Diphenyl oxide (heat exchanger liquid) Ethyl acetate see Acetic acid ethyl ester Ethyl alcohol Ethyl ether Ethylene chloride Ethylene glycol (aqueous solution) Ethylene oxide

Chemical Resistance Medium Without impregnation With impregnation Resin F Fatty acid sulfonates Fatty acids Fatty alcohols Feed water Formic acid Fruit juices Gallic acid (aqueous solution) (aqueous solution) Glycol acetate Hydrogen cyanide Iron(II) sulfate (aqueous solution) Iron(III) chloride (aqueous solution) Isoamyl alcohol Isopropyl acetate

Chemical Resistance Medium Without impregnation With impregnation Resin Lauric acid Linoleic acid (aqueous solution) M Magnesium chloride Magnesium sulfate Maleic acid Maleic acid anhydride (solid, Mp 52 °C) Manganese chloride (aqueous solution) Manganese sulfate (aqueous solution) (aqueous solution) (aqueous solution) Methyl alcohol Methyl chloride Methylene chloride (aqueous solution) Monochloroacetic acid Monovinyl acetate

Chemical Resistance Medium Without impregnation With impregnation Resin Octyl alcohol siehe Oktanol Oleic acid Oxalic acid Nitrogen Nitrophenol + + + (Temperature: (Temperature: (Temperature: 200 °C) Petroleum ether Phthalic acid anhydride solid, Mp 130 °C) b) ( Picric acid (liquid) (aqueous solution) Potassium aluminum sulfate (aq. solution) KAI(SO4)2 Potassium bromide Potassium carbonate (aqueous solution) K2CO3 Potassium chloride (aqueous solution) Potassium fluoride (aqueous solution) Potassium nitrate (aqueous solution) Potassium oxalate (aqueous solution) (aqueous solution)

Chemical Resistance Medium Without impregnation With impregnation Resin (aqueous solution) Potassium sulfite (aqueous solution) Propionic acid Propyl alcohol Silicon tetrachloride Silver cyanide (aqueous solution) Silver nitrate (aqueous solution) Soap solution (aqueous solution) Sodium acetate (aqueous solution) Sodium bicarbonate (aqueous solution) Sodium bisulfate (aqueous solution) Sodium bisulfite (aqueous solution) Sodium bromide (aqueous solution) Sodium carbonate (aqueous solution) Sodium chloride (aqueous solution) Sodium cyanide (aqueous solution) (Digester liquor)