Błękit eriochromowy SE (C.I. 16680) wskaźnik do miareczkowania metali – Scharlau
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PRODUCENT: SCHARLAB
Eriochrome blue SE, C.I.16680,
– Synonyms: 2-(4-Chloro-1-hydroxyphenyl-2-azo)-1,8-dihydroxynaphthalene-3,6-disulfonic acid disodium salt
– C16H9ClN2Na2O9S2
– M = 518,82 g/mol
– CAS [1058-92-0]
– EINECS-No.: 213-894-4
– Solub. in water: (20 ºC): ~ 30 g/l
– LD 50 (oral, rat): 8900 mg/kg
– Tariff number: 3204 19 00 90
– Applications: analytical chemistry, indicator (metals), in biochemistry.
SPECIFICATIONS
Absorption maximum l1 (methanol): 526 – 530 nm
Absorption maximum l2 (methanol): 552 – 556 nm
Absorptivity (A1%/1 cm; l1 max) : min. 320
Absorptivity (A1%/1 cm; l2 max) : min. 320
loss on drying (110 ºC): max. 7 %
suitability as metal indicator: passes test
