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Sodium hydrogen tartrate monohydrate, for analysis, ExpertQ®

- Synonyms: Sodium bitartrate monohydrate
- C4H5NaO6·H2O
- M = 190,09 g/mol
- CAS [526-94-3]
- EINECS-No.: 208-400-9
- Solub. in water: (20 ºC): 89 g/l
- Melting point: 253 °C
- Tariff number: 2918 13 00 90
- Applications: analytical chemistry, for the detection of: potassium; nutrient media for bacterial culture

SPECIFICATIONS
assay (acidimetric): 99,5 - 100,5 %
insoluble in water: max. 0,005 %
pH (5 %, H2O, 20 °C): 3,0 - 3,6
chlorides (Cl): max. 0,001 %
phosphates (as PO4): max. 0,002 %
sulfates (SO4): max. 0,005 %
ammonium (NH4): max. 0,005 %
arsenic (As): max. 0,4 ppm
calcium (Ca): max. 0,01 %
copper (Cu): max. 0,001 %
heavy metals (as Pb): max. 0,001 %
iron (Fe): max. 0,001 %
lead (Pb): max. 0,001 %
nickel (Ni): max. 0,001 %
loss on drying (120 °C) : 9,0 - 10,0 %