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Sodium chloride, secondary standard for volumetric titrations, Titrasure®

- Synonyms: Salt, Common salt, Rock salt, Sea saltr- NaClr- M = 58,44 g/molr- CAS [7647-14-5]r- EINECS-No.: 231-598-3r- Solub. in water: (20 ºC): 358 g/lr- Melting point: 801 ºCr- Boiling point: 1461 ºCr- Vapour pressure: (865 ºC) 1,3 hPar- LD 50 (oral, rat): 3000 mg/kgr- Tariff number: 2501 00 31 00r- Applications: analytical chemistry, laboratory reagent, to make sodium salts, in food industry, for decreasing the melting point of water.rrSPECIFICATIONSrassay (on dried sample): min. 99,0 %rinsoluble in water: max. 0,005 %rpH (5 %, H2O, 25 °C): 5,0 - 9,0 rbromides (Br): max. 0,01 %rchlorates and nitrates (as NO3): max. 0,003 %riodides (I): max. 0,002 %rphosphates (as PO4): max. 5 ppmrsulfates (SO4): max. 0,004 %rbarium (Ba): passes testrcalcium (Ca): max. 0,002 %rheavy metals: max. 5 ppmriron (Fe): max. 2 ppmrmagnesium (Mg): max. 0,001 %rpotassium (K): max. 0,005 %rrThis standard solution is traceable to Standard Reference Material from NIST. r