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Hydrofluoric acid, solution 40% w/w, for analysis, ExpertQ®, ISO

- HFr- M = 20,01 g/molr- CAS [7664-39-3]r- EINECS-No.: 231-634-8r- Density: 1,13 g/cm3 r- Solub. in water: (20 ºC): miscibler- Melting point: ~ -44 ºCr- Boiling point: ~ 112 ºCr- EC-Index-No.: 009-002-00-6r- ADR: 8 CT1 II UN 1790r- IMDG: 8 II UN 1790r- IATA/ICAO: 8 II UN 1790r- GHS-signal word: Dangerr- GHS-H sentences: H310 - H330 - H314r- GHS-P sentences: P260 - P303+P361+P353 - P305+P351+P338 - P310 - P320 - P405 - P501ar- Tariff number: 2811 11 00 00r- Applications: analytical chemistry, acidifying agent, dissolution agent for silicates.rrSPECIFICATIONSrassay (acidimetric): min. 40 %rcolour (Hazen): max.10 rhexafluorosilicic acid (H2SiF6) : max. 0,005 %rchlorides (Cl): max. 0,0001 %rphosphates (as PO4): max. 0,00005 %rsulfates (SO4): max. 0,0002 %rsulfites (SO3) : max. 0,0002 %raluminium (Al): max. 0,05 ppmrarsenic (As): max. 0,05 ppmrbarium (Ba): max. 0,05 ppmrberyllium (Be): max. 0,02 ppmrbismuth (Bi): max. 0,02 ppmrcadmium (Cd): max 0,01 ppmrcalcium (Ca): max. 0,2 ppmrchromium (Cr): max. 0,02 ppmrcobalt (Co): max. 0,02 ppmrcopper (Cu): max. 0,02 ppmrgermanium (Ge): max. 0,02 ppmrheavy metals (as Pb): max. 1 ppmriron (Fe): max. 0,1 ppmrlead (Pb): max. 0,02 ppmrlithium (Li): max. 0,02 ppmrmagnesium (Mg): max. 0,1 ppmrmanganese (Mn): max. 0,03 ppmrmolybdenum (Mo): max. 0,02 ppmrnickel (Ni): max. 0,02 ppmrpotassium (K): max. 0,1 ppmrsilver (Ag): max. 0,02 ppmrsodium (Na): max. 0,2 ppmrstrontium (Sr) : max. 0,02 ppmrthallium (Tl): max. 0,02 ppmrtitanium (Ti): max. 0,02 ppmrvanadium (V): max. 0,02 ppmrzinc (Zn): max. 0,05 ppmrzirconium (Zr): max. 0,02 ppmrresidue on ignition: max. 0,0005 %r