Czerwień fenolowa wskaźnik , ACS – SCHARLAU
Informacje dodatkowe
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POBIERZ KARTĘ PRODUKTU
POBIERZ KARTĘ POZIOMU JAKOŚCI
POBIERZ KARTĘ CHARAKTERYSTYKI PRODUKTU
PRODUCENT: SCHARLAB
Phenol red, indicator, ACS
– Synonyms: Phenolsulfonphthalein, PR
– C19H14O5S
– M = 354,38 g/mol
– CAS [143-74-8]
– EINECS-No.: 205-609-7
– Solub. in water: (20 ºC): almost insoluble
– Tariff number: 2934 99 90 90
– Applications: analytical chemistry, indicator.
SPECIFICATIONS
pH range (yellow-red): 6,8 – 8,2
clarity of solution: passes test
Absorption maximum l1 (pH 1,2): 503 – 506 nm
Absorption maximum l2 (pH 3,0): 430 – 435 nm
Absorption maximum l3 (pH 6,5): 430 – 435 nm
Absorption maximum l4 (pH 8,8): 557 – 560 nm
Absorptivity (A1%/1 cm; l1, on dried sample): 900 – 1100
Absorptivity (A1%/1 cm; l2; on dried sample): 500 – 700
Absorptivity (A1%/1 cm; l3 , on dried sample): 500 – 700
Absorptivity (A1%/1 cm; l4 , on dried sample): 1000 – 1200
insoluble in C2H5OH : passes test
copper (Cu): max. 0,005 %
iron (Fe): max. 0,005 %
lead (Pb): max. 0,005 %
nickel (Ni): max. 0,005 %
loss on drying (110 ºC): max. 5 %
