Pigment Yellow 138 CAS 30125-47-4
Selelekela
Pigment yellow 138, e tsejoang hape e le palesa e tala e mosehla, terompeta e mosehla, lebitso la lik'hemik'hale ke 2,4-dinitro-N-[4-(2-phenylethyl) phenyl]aniline. Se latelang ke selelekela ho tse ling tsa thepa, ts'ebeliso, mekhoa ea tlhahiso le tlhaiso-leseling ea polokeho ea Yellow 138:
Boleng:
- Yellow 138 ke phofshoana e mosehla ea kristale, e qhibilihang habonolo ka har'a metsoako ea lintho tse phelang, joalo ka methanol, ethanol, joalo-joalo, 'me e sa qhibilihe ka metsing.
- Sebopeho sa eona sa lik'hemik'hale se etsa qeto ea hore se na le photostability e ntle le ho hanyetsa mocheso.
- Yellow 138 e na le botsitso bo botle tlas'a maemo a acidic, empa e na le tšekamelo ea ho fetoha ha mebala tlas'a maemo a alkaline.
Sebelisa:
- Yellow 138 e sebelisoa haholo joalo ka pigment ea tlhaho 'me e sebelisoa haholo lipente, li-inks, polasetiki le liindasteri tse ling.
- Ka lebaka la 'mala oa eona o mosehla o hlakileng le ho potlaka ha mebala e metle, Yellow 138 e atisa ho sebelisoa e le pigment penteng ea oli, pente ea metsi, pente ea acrylic le likarolo tse ling tsa bonono.
Mokhoa:
- Mokhoa oa ho lokisa oa mosehla 138 o rarahane ho feta, 'me hangata o fumanoa ka karabelo ea oxidation ka metsoako ea amino.
- Mokhoa o khethehileng oa ho itokisa o ka kenyelletsa karabelo ea metsoako ea nitroso e nang le aniline ho fumana 2,4-dinitro-N-[4-(2-phenylethyl) phenyl]imine, ebe joale karabelo ea mine e nang le silver hydroxide ho lokisetsa Huang 138 .
Lintlha tsa Tšireletseho:
- Yellow 138 ka kakaretso e nkuwa e tsitsitse mme e batla e bolokehile tlasa maemo a tlwaelehileng a tshebediso.
- Yellow 138 e na le tšekamelo ea ho fifala tlas'a maemo a alkaline, kahoo ho kopana le lintho tsa alkaline ho lokela ho qojoa.