- HClO4 - M = 100,46 g/mol - CAS [7601-90-3] - EINECS-No.: 231-512-4 - Density: 1,68 g/cm3 - Solub. in water: (20 ºC): miscible - Melting point: -18 ºC - Boiling point: 198,7 ºC - LD 50 (oral, rat): 1100 mg/kg (anhydrous substance) - EC-Index-No.: 017-006-00-4 - ADR: 5.1 OC1 I UN 1873 - IMDG: 5.1 I UN 1873 - IATA/ICAO: 5.1 I UN 1873 - GHS-signal word: Danger - GHS-H sentences: H271 - H314 - H302 - GHS-P sentences: P221 - P283 - P303+P361+P353 - P305+P351+P338 - P310 - P370+P378 - P405 - P501a - Tariff number: 2811 19 80 90 - Applications: analytical chemistry, laboratory reagent, oxidizing agent, in explosive compositions. SPECIFICATIONS assay (acidimetric): 69 - 72 % identity: passes test colour (Hazen): max. 10 insoluble in C2H5OH : max. 0,001 % free chlorine (as Cl): max. 0,00005 % total nitrogen (as N): max. 0,001 % chlorates (ClO3): max. 0,001 % chlorides (Cl): max. 0,0003 % phosphates and silicates (as SiO2): max. 0,0005 % sulfates (SO4): max. 0,001 % aluminium (Al): max. 0,05 ppm arsenic (As): max. 0,05 ppm barium (Ba): max. 0,02 ppm beryllium (Be): max. 0,02 ppm bismuth (Bi): max. 0,1 ppm cadmium (Cd): max. 0,05 ppm calcium (Ca): max. 0,5 ppm cobalt (Co): max. 0,05 ppm copper (Cu): max. 0,1 ppm germanium (Ge): max. 0,05 ppm heavy metals (as Pb): max. 1 ppm iron (Fe): max. 1 ppm lead (Pb): max. 0,05 ppm lithium (Li): max. 0,02 ppm magnesium (Mg): max. 0,5 ppm manganese (Mn): max. 0,02 ppm molybdenum (Mo): max. 0,05 ppm nickel (Ni): max. 0,1 ppm potassium (K): max. 0,1 ppm silver (Ag): max. 0,1 ppm sodium (Na): max. 0,5 ppm strontium (Sr) : max. 0,02 ppm thallium (Tl): max. 0,05 ppm titanium (Ti): max. 0,1 ppm vanadium (V): max. 0,05 ppm zinc (Zn): max. 0,1 ppm zirconium (Zr): max. 0,1 ppm residue on ignition (as SO4): max. 0,003 %