High-Temperature Attack

Figure 6.4 Even and uneven general corrosion, and high-temperature attack (scaling) 3...

BENZENECARBINOL or BENZENECARBONAL (100-51-6) Forms explosive mixture with air (flash point 213°F/101 °C). Contact with water may cause frothing. Slowly oxidizes in air and oxygen, forming benzaldehyde. Incompatible with mineral acids, caustics, aliphatic amines, isocyanates. Reacts violently with strong oxidizers, and explosive with sulfuric acid at elevated temperature. Corrodes aluminum at high temperature. Attacks some nonfluorinated plastics may not attack polypropylene. 

Mixtures with lead perchlorate, sodium hypochlorite are explosive. May react with metallic aluminum at high temperature. Attacks some plastics, rubber, and coatings. Flow or agitation of substance may generate electrostatic charges due to low conductivity. 

Reacts violently with strong oxidizers, and explosive with sulfuric acid at elevated temperature. Corrodes aluminum at high temperature. Attacks some nonfluoiinated plastics may not attack pol5fpropylene. 

Chlorine and fluorine-based gases at high temperature attack SiC [1]. If one uses pure chlorine and/or fluorine a layer of carbon is left on the surface. This layer of carbon can be removed by adding oxygen to the mixture. Fluorine and chlorine based gases are highly reactive to many materials and in many applications are not practical. 

CHEMICAL PROPERTIES stable at high temperatures attacked by hydrogen fluoride ean react vigorously with powerful oxidizing agents no specific conditions contributing to instability no hazardous decomposition products FP (NA) LFL/UFL (NA) AT (NA). 

In electronics, platinum, palladium and ruthenium are used for computer hard disks and for multilayer ceramic capacitors. Platinum and rhodium are used in sensor applications, for instance in equipment for measuring temperature. Palladium and platinum are used for dental purposes. As platinum and iridium are very resistant to chemical and high-temperature attack they are widely used for equipment in chemical industry and in laboratories. Compounds of platinum and osmium have been used in medicine for anti-cancer drugs and implanted sensors. Platinum and to some extent also palladium are used as jewelry and for investment items, such as coins and bars. 

---