litaba

Bosoeu bo bosoeu ho isa bokhubetsoaneng ba kristale kapa makhasi. Sodium m-aminobenzene sulfonate e fumanoe ka karabelo ea sulfonation ea nitrobenzene le phokotso. E sebelisetsoa ho etsa lidae tsa azo le li-intermediates tsa meriana, li-reactive, acidic, sulfide le lidae tse ling.

METANIC ACIDSODIUM LETSWAI

英文 名 词: m-aminobenzenesulfonic ACID SODIUM LETSWAI; SODIUM METANILATE.

Nomoro ea CAS. : 1126-34-7

EINECS No. : 214-419-3 [1]

Foromo ea molek'hule: C6H6NNaO3S

Boima ba molek'hule: 195.1734

Ponahalo: Bosoeu bo boputsoa ho isa ho kristale e khubelu e khanyang kapa seretse

Khalase e ntle e tšoeu. Mocheso oa ho bola oa kristale o fumanoang metsing ke 302 ~ 304 ℃.

Metanilic acide na le ponahalo e bosoeu bo boputsoa ho isa ho bofubedu bo kganyang joalo ka kristale kapa seretse

Kakaretso ea li-amino, % ≥60

Litaba, % ≥90

Likahare tsa taba e sa tsitsang ka soda, % ≤1.5

Ts'ebeliso: e sebelisoa ha ho etsoa lidae tsa azo le li-intermediates tsa meriana, reactive, acid, sulfide le lidae tse ling.

Mokhoa oa ts'ebetso ea tlhahiso: karabelo ea sulfonation ea nitrobenzene le acid e fuming sulfuric e etsoa ka 115 ℃, mme sehlahisoa sa karabelo ha se nke lehlakore ka alkali ea metsi, ebe tharollo ea sodium ea m-nitrobenzene sulfonate e tlhotliloeng. Tharollo e ile ea fokotsoa ka litšepe tsa tšepe e le mokhoa oa ho fumana m-aminobenzene sulfonate, 'me seretse sa tšepe se ile sa ntšoa ka ho sefa. Filtrate e ne e le m-aminobenzene sulfonate salt solution. Eketsa sulfuric acid pitseng ea ho ntša asiti ho fihlela pampiri ea teko e khubelu ea Congo e fetoha boputsoa, ​​​​'me u boloke mocheso ho 70℃. Ebe, m-aminobenzene sulfonate slurry e fumanoa ka centrifugation filtration.

Chefo le tšireletso: sehlahisoa sena se chefo haholo. Ho koenya kapa ho monya ka letlalo ho ka baka chefo e matla. Leha ho le joalo, chefo ea eona e tlase haholo ho feta aniline, 'me e ke ke ea baka phello ea carcinogenic. Nakong ea ts'ebetso ea tlhahiso, e lokela ho thibeloa ka thata ho apara kapa ho fafatsa letlalo ka phoso, lisebelisoa tsa tlhahiso li lokela ho koaloa ho thibela ho lutla, 'me moetsi o lokela ho apara lisebelisoa tsa tšireletso.

Ho paka le ho boloka: boloka sebakeng se phodileng, se nang le moea o pholileng le se omileng, thibela mocheso, mongobo le letsatsi. Boloka le ho tsamaisa ho latela melaoana ea lintho tse chefo.