Sodium chloride, secondary standard for volumetric titrations, Titrasure®
- Synonyms: Salt, Common salt, Rock salt, Sea salt
- NaCl
- M = 58,44 g/mol
- CAS [7647-14-5]
- EINECS-No.: 231-598-3
- Solub. in water: (20 ºC): 358 g/l
- Melting point: 801 ºC
- Boiling point: 1461 ºC
- Vapour pressure: (865 ºC) 1,3 hPa
- LD 50 (oral, rat): 3000 mg/kg
- Tariff number: 2501 00 31 00
- Applications: analytical chemistry, laboratory reagent, to make sodium salts, in food industry, for decreasing the melting point of water.
SPECIFICATIONS
assay (on dried sample): min. 99,0 %
insoluble in water: max. 0,005 %
pH (5 %, H2O, 25 °C): 5,0 - 9,0
bromides (Br): max. 0,01 %
chlorates and nitrates (as NO3): max. 0,003 %
iodides (I): max. 0,002 %
phosphates (as PO4): max. 5 ppm
sulfates (SO4): max. 0,004 %
barium (Ba): passes test
calcium (Ca): max. 0,002 %
heavy metals: max. 5 ppm
iron (Fe): max. 2 ppm
magnesium (Mg): max. 0,001 %
potassium (K): max. 0,005 %
This standard solution is traceable to Standard Reference Material from NIST.
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SO02340100 |
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