Methyl Red (C.I. 13020)(Reag. USP, Ph. Eur.) for analysis, ACS

Methyl Red (C.I. 13020)(Reag. USP, Ph. Eur.) for analysis, ACS
Content: 100 GRM
Physical Description:
solid
Quality Name: for analysis, ACS
pH indicator 4,2 red; 6,2 yellow
Specification: Identity@IR passes test§A 1% , 1 cm, ? 1 max. (calc. a.d.s.)@>1500§A 1% , 1 cm, ? 2 max. (calc. a.d.s.)@>670§A 1% , 1 cm, ? 3 max.@>750§? of max. ABS@525 - 528 nm§? of max. ABS@430 - 434 nm§? of max. ABS in C2H5OH@490 - 495 nm§Melting range@179-182°C§Range of Transition interval according to ACS@passes test§T.L.C.@passes test§CHAR(13) + CHAR(10) Maximum limit of impurities@§pH transition interval: red@4.2§pH transition interval: yellow@6.2§Insoluble matter in C2H5OH@passes test§Loss on drying at 110°C@5%§Residue on ignition (as SO4)@2 %