Czerń eriochromowa T (C.I. 14645) wskaźnik do miareczkowania metali – SCHARLAU
Additional information
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POBIERZ KARTĘ PRODUKTU
POBIERZ KARTĘ POZIOMU JAKOŚCI
POBIERZ KARTĘ CHARAKTERYSTYKI PRODUKTU
PRODUCENT: SCHARLAB
Eriochrome black T, C.I. 14645, i.
– Synonyms: Chrome black T, 2-Hydroxy-1-(1-hydroxy-2-naphthylazo)-6-nitronaphthalene-4-sulfonic acid sodium salt
– C20H12N3NaO7S
– M = 461,38 g/mol
– CAS [1787-61-7]
– EINECS-No.: 217-250-3
– Solub. in water: (20 ºC): 50 g/l
– LD 50 (oral, rat): 17590 mg/kg
– ADR: 9 M7 III UN 3077
– IMDG: 9 III UN 3077
– IATA/ICAO: 9 III UN 3077
– GHS-signal word: Warning
– GHS-H sentences: H319 – H411
– GHS-P sentences: P280 – P273 – P264 – P305+P351+P338 – P337+P313 – P501a
– Tariff number: 3204 19 00 90
– Applications: analytical chemistry, indicator (metals), indicator of the hardness of water.
SPECIFICATIONS
Absorption maximum l (pH + 10,0): 619 – 624 nm
Absorptivity (A 1 %/1 cm; l max; pH 10,0; on dried sample): 270 – 370
suitability as metal indicator: passes test
loss on drying : max. 7 %
