Hafnium metal dusting

Of a series of powdered refractory compounds examined, only lanthanum hexa-boride, hafnium carbide, titanium carbide, zirconium carbide, magnesium nitride, zirconium nitride and tin(II) sulfide were dust explosion hazardous, the 2 latter being comparable with metal dusts. Individual entries are ... [Pg.373]

Although the metal hafnium is not harmful, its powder and dust are both toxic if inhaled and explosive even when wet. [Pg.150]

TELLURIUM (13494-80-9) Finely divided powder or dust may be flammable and explosive. Violent reaction with strong oxidizers, bromine pentafluoride, halogens, interhalogens, iodine pentafluoride, hexalithium disilicide, lithium silicide, nitrosyl fluoride, oxygen difluoride, sodium peroxide, sulfur, zinc. Incompatible with cadmium, cesium, hafnium, strong bases, chemically active metals, iodic acid, iodine oxide, lead chlorite, lead oxide, mercury oxides, nitric acid, peroxyformic acid, platinum, silver bromate/iodate/ fluoride, nitryl fluoride, sodium nitrate. [Pg.1121]

Hafnium (CAS 7440-58-6) Based on animal studies, dusts are mildly irritating to eyes and skin. Liver injury may occur at very high doses. 0.5 mg/m 50 mg/m The metal is a gray solid. Other compounds vary In appearance. [Pg.577]