Wolframian sodowy, dihydrat GR ExpertQ® do analizy, ACS – SCHARLAU
Additional information
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POBIERZ KARTĘ PRODUKTU
POBIERZ KARTĘ POZIOMU JAKOŚCI
POBIERZ KARTĘ CHARAKTERYSTYKI PRODUKTU
PRODUCENT: SCHARLAB
Sodium tungstate dihydrate, ExpertQ®, AC
– Synonyms: Sodium wolframate dihydrate
– Na2WO4·2H2O
– M = 329,86 g/mol
– CAS [10213-10-2]
– EINECS-No.: 236-743-4
– Solub. in water: (20 ºC): ~ 730 g/l
– Melting point: 100 ºC (release of crystalline water)
– LD 50 (oral, rat): 1190 mg/kg (anhydrous substance)
– GHS-signal word: Warning
– GHS-H sentences: H302
– GHS-P sentences: P264 – P270 – P330 – P301+P312 – P501a
– Tariff number: 2841 80 00 00
– Applications: analytical chemistry (precipitant for: alkaloids, blood sugar, uric acid), for biology.
SPECIFICATIONS
assay (gravimetric): 99,0 – 101,0 %
identity (IR-spectrum): passes test
insoluble in water: max. 0,01 %
alkalinity: max. 0,02 meq/g
chlorides (Cl): max. 0,003 %
sulfates (SO4): max. 0,01 %
heavy metals and iron (as Pb): max. 0,001 %
lead (Pb): max. 0,001 %
molybdenum (Mo): max. 0,001 %
