nkhani

Chotuwa choyera mpaka kristalo wofiyira kapena zamkati. Sodium m-aminobenzene sulfonate analandira sulfonation anachita wa nitrobenzene ndi kuchepetsa. Ntchito kupanga azo utoto ndi intermediates mankhwala, zotakasika, acidic, sulfide ndi utoto ena.

METANIC ACIDSODIUM SALT

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

CAS no. Chithunzi: 1126-34-7

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

Fomula ya maselo: C6H6NNaO3S

Kulemera kwa molekyulu: 195.1734

Maonekedwe: Chotuwa choyera mpaka kristalo wofiyira wowala kapena slurry

Mwala wonyezimira woyera. Kutentha kwa kristalo wotengedwa m'madzi ndi 302 ~ 304 ℃.

Metanilic acidali ndi imvi yoyera mpaka yofiira ngati kristalo kapena slurry

Zonse za amino, % ≥60

Zamkati, % ≥90

Zomwe zili ndi zinthu zosasungunuka mu soda, % ≤1.5

Ntchito: ntchito kupanga azo utoto ndi intermediates mankhwala, zotakasika, asidi, sulfide ndi utoto wina.

Njira yopangira njira: sulfonation reaction ya nitrobenzene ndi fuming sulfuric acid imachitika pa 115 ℃, ndipo zomwe zimapangidwira zimasinthidwa kukhala ndale ndi madzi amchere, ndiyeno njira ya sodium ya m-nitrobenzene sulfonate imasefedwa. Njira yothetsera vutoli idachepetsedwa ndi kumeta kwachitsulo monga chothandizira kupeza m-aminobenzene sulfonate, ndipo matope achitsulo amachotsedwa ndi kusefera. Sefayo inali m-aminobenzene sulfonate salt solution. Onjezani sulfuric acid mumphika wochotsa asidi mpaka pepala lofiira la Congo lisandulika kukhala buluu, ndikusunga kutentha pa 70 ℃. Kenako, slurry ya m-aminobenzene sulfonate imapezeka ndi kusefera kwa centrifugation.

Poizoni ndi chitetezo: mankhwalawa ndi oopsa kwambiri. Kumeza kapena kuyamwa pakhungu kungayambitse poyizoni. Komabe, kawopsedwe kake ndi kochepa kwambiri kuposa aniline, ndipo sikungayambitse zotsatira za carcinogenic. Panthawi yopanga, ziyenera kupewedwa kuti zisavale mwangozi kapena kuwaza khungu, zida zopangira ziyenera kusindikizidwa kuti zisatayike, ndipo wogwiritsa ntchito azivala zida zodzitetezera.

Kulongedza ndi kusunga: sungani pamalo ozizira, olowera mpweya wabwino komanso owuma, pewani kutentha, chinyezi ndi dzuwa. Sungani ndi kunyamula motsatira malamulo a zinthu zapoizoni.