Eozyna i błękit metylenowy Wrighta do mikroskopii – Scharlau
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Additional information
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PRODUCENT: SCHARLAB
Eosin methylene blue, according
– Synonyms: Wright’s eosin methylene blue
– CAS [68988-92-1]
– EINECS-No.: 273-541-5
– Solub. in water: (20 ºC): insoluble
– LD 50 (oral, rat): 1180 mg/kg (toxic component)
– Tariff number: 3204 19 00 90
– Applications: analytical chemistry, for spectrophotometric determinations (for determination of: silver), for biology, indicator, microscopy.
SPECIFICATIONS
pH (0,01 %, methanol , 50 %): 6 – 7
Absorption maximum l1 (in methanol): 648 – 651 nm
Absorption maximum l2 (in methanol): 521 – 524 nm
Absorptivity (A1%/1 cm; l1, methanol, referred to dried sample): 1200 – 1400
Absorptivity (A1%/1 cm; l2; methanol, referred to dried sample): 650 – 850
loss on drying (105 ºC): max. 10 %
suitability for microscopy: passes test
TLC test: passes test
