Wodoroftalan potasowy ExpertQ® do analizy Reag. Ph Eur – SCHARLAU

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Wodoroftalan potasowy ExpertQ® do analizy Reag. Ph Eur
Potassium hydrogen phthalate, ExpertQ®,

PHARMACOPOEIA PRODUCTS – REAGENTS LIST / PRODUKTY FARMACEUTYCZNE,

PRODUCENT: SCHARLAB
Firma SylChem to Autoryzowany Dystrybutor Scharlau

– Synonyms: Potassium biphthalate, Phthalic acid monopotassium salt, KHP
– C8H5KO4
– M = 204,22 g/mol
– CAS [877-24-7]
– EINECS-No.: 212-889-4
– Solub. in water: (20 ºC): 80 g/l
– Melting point: 295 – 300 ºC
– LD 50 (oral, rat): > 3200 mg/kg
– Tariff number: 2917 39 80 80
– Applications: analytical chemistry, titrant in volumetric analysis (bases), in buffer solutions.

SPECIFICATIONS
assay (acidimetric, on dried sample): min. 99,9 %
identity (IR-spectrum): passes test
insoluble in water: max. 0,005 %
phthalic acid: max. 0,005 %
chlorides (Cl): max. 0,002 %
sulfates (SO4): max. 0,005 %
cadmium (Cd): max. 5 ppm
cobalt (Co): max. 5 ppm
copper (Cu): max. 2 ppm
heavy metals (as Pb): max. 5 ppm
iron (Fe): max. 5 ppm
lead (Pb): max. 5 ppm
nickel (Ni): max. 5 ppm
sodium (Na): max. 0,01 %
zinc (Zn): max. 5 ppm
loss on drying (105 ºC): max. 0,2 %