English En

Eosin methylene blue, according to Wright

- Synonyms: Wright's eosin methylene bluer- CAS [68988-92-1]r- EINECS-No.: 273-541-5r- Solub. in water: (20 ºC): insolubler- LD 50 (oral, rat): 1180 mg/kg (toxic component)r- Tariff number: 3204 19 00 90r- Applications: analytical chemistry, for spectrophotometric determinations (for determination of: silver), for biology, indicator, microscopy.rrSPECIFICATIONSrpH (0,01 %, methanol , 50 %): 6 - 7 rAbsorption maximum l1 (in methanol): 648 - 651 nm rAbsorption maximum l2 (in methanol): 521 - 524 nm rAbsorptivity (A1%/1 cm; l1, methanol, referred to dried sample): 1200 - 1400 rAbsorptivity (A1%/1 cm; l2; methanol, referred to dried sample): 650 - 850 rloss on drying (105 ºC): max. 10 %rsuitability for microscopy: passes testrTLC test: passes testr