Methylamine(CAS#74-89-5)
Kotsi le Polokeho
| Likhoutu tsa Kotsi | R12 – E tuka Haholo R20 – E kotsi ka ho hema R37/38 – E tenang tsamaiso ya ho hema le letlalo. R41 – Kotsi ya tshenyo e kgolo mahlong R34 – E baka ho cha R20/22 – E kotsi ka ho hema le haeba e koetsoe. R11 – E tuka Haholo R39/23/24/25 - R36/37/38 – Ho tena mahlo, tsamaiso ya ho hema le letlalo. R23/24/25 – E na le chefo ka ho hema, ho kopana le letlalo le haeba e koetsoe. R40 - Bopaki bo fokolang ba phello ea kankere R19 - E ka etsa peroxides e phatlohang |
| Tlhaloso ea Tšireletseho | S7 - Boloka setshelo se koetsoe ka thata. S16 - Ipoloke hole le mehloli ea mollo. S26 - Ha u kopana le mahlo, hlatsoa hang-hang ka metsi a mangata 'me u batle keletso ea bongaka. S36/37 - Apara liaparo tse loketseng tsa tšireletso le liatlana. S45 – Ha ho ka etsahala kotsi kapa ha o ikutlwa o sa phele hantle, batla keletso ya bongaka hanghang (bontsha leibole neng kapa neng ha ho kgoneha.) S29 - Se ke oa tšela ka har'a li-drain. S36/37/39 - Apara liaparo tse loketseng tsa tšireletso, liatlana le tšireletso ea mahlo / sefahleho. S3/7 - S3 - Boloka sebakeng se phodileng. S39 - Apara ts'ireletso ea mahlo / sefahleho. S33 - Nka mehato ea boits'ireletso khahlanong le ho tsoa ho sa fetoheng. |
| Li-ID tsa UN | UN 3286 3/PG 2 |
| WGK Jeremane | 2 |
| RTECS | PF6300000 |
| LIKHOUTU FLUKA BRAND F | 4.5-31 |
| TSCA | Ee |
| Khoutu ea HS | 29211100 |
| Sehlopha sa Likotsi | 3 |
| Sehlopha sa ho paka | II |
| Chefo | LD50 ka molomo ka likhoto: 100-200 mg / kg (Kinney); LC50 ka likhoto: 0.448 ml/l (Sarkar, Sastry) |
Boitsebiso
| lintho tse tala tsa lik'hemik'hale | methylamine, eo hape e tsejoang e le methylamine le aminomethane, ke ntho ea bohlokoa ea lik'hemik'hale tse tala le li-intermediates, mocheso oa kamore le khatello ea sepakapaka bakeng sa khase e tukang e se nang mebala, khatello e phahameng ea khatello kapa compression liquefaction, e nang le monko o matla oa ammonia. Monko o monate oa litlhapi maemong a tlase haholo. E qhibiliha ka metsing, e qhibiliha ka ethanol, ether. Ho bonolo ho chesa, etsa motsoako o phatlohang ka moea, moeli oa ho phatloha: 4.3% ~ 21%. Ho na le alkaline e fokolang, alkaline ho feta ammonia, le asiti ea inorganic ho hlahisa letsoai le qhibilihang ka metsing. E entsoe ho tloha methanol le ammonia tlas'a ketso ea mocheso o phahameng le khatello e phahameng le catalyst, hape e ka lokisoa ka ho futhumatsa formaldehyde le ammonium chloride ho 300 ℃ tlas'a ketso ea zinki chloride. Methylamine e ka sebelisoa ha ho etsoa chefo e bolaeang likokoanyana, meriana, li-accelerator tsa rabara, lidae, liqhomane, letlalo, petroleum, li-surfactants, li-resin tsa ion exchange, li-strippers tsa pente, liaparo le li-additives. Ke thepa e tala ea bohlokoa bakeng sa tlhahiso ea chefo e bolaeang likokoanyana Dimethoate, carbaryl le chlordimeform. Methylamine inhalation toxicity ke sehlopha sa chefo e tlase, khatello e phahameng e lumelletsoeng moeeng 5mg/m3(0.4ppm). E senya, e khopisa mahlo, letlalo le lera la mucous. Tabeng ea lelakabe le bulehileng, ho na le kotsi ea ho tuka ho bakoang ke mocheso o phahameng, 'me ho senyeha ha li-cylinders le lisebelisoa ho tla baka ho phatloha. |
| Thuso ea Pele bakeng sa chefo | methylamine ke sehlopha sa chefo e mahareng se nang le ho teneha ho matla le ho bola. Ts'ebetsong ea tlhahiso le nakong ea lipalangoang, ka lebaka la ho lutla ka phoso, ho tla etsa hore ho kopane le chefo e matla. Sehlahisoa sena se ka kenngoa ka mokhoa oa ho hema, tharollo e ka kenngoa ka letlalo, 'me letsoai le ka chefo ka ho kenngoa ka phoso. Sehlahisoa sena se na le phello e matla e susumetsang mahlong, pampitšana e ka holimo ea ho hema, letlalo le mucosa. Ho hema ka matla a mangata ho ka senya matšoafo. Maemo a matla a ka baka edema ea pulmonary, lefu la ho hema le lefu. Leha ho le joalo, ha ho linyeoe tsa chefo ea tsamaiso tse tlalehiloeng lapeng le linaheng tse ling. Metsoako ea methylamine ea metsi e na le ho teneha ho matla le ho bola, e ka baka ho chesa ha lik'hemik'hale tsa mahlo le letlalo. 40% methylamine aqueous solution e ka baka bohloko bo tukang ba mahlo, photophobia, meokho, Conjunctival Congestion, ho ruruha ha mahlo, corneal edema le seso se ka holimo, matšoao a ka nka libeke tse 1 ho isa ho tse peli. Ho pepeseha ha nako e telele linthong tse fokolang tsa metsoako ea methylamine, ho ka utloa mahlo a omileng, nko, 'metso le ho se phutholohe. [mehato ea thuso ea pele] ha letlalo le kopana, tlosa liaparo tse silafetseng hang-hang 'me u hlatsoe ka botlalo ka metsi a mangata a phallang, 0.5% citric acid e hlatsoa letlalo, lera la mucous le gargles. ha mahlo a silafalitsoe, lintši li lokela ho phahamisoa, ho hlatsuoa ka metsi a phallang kapa saline bonyane metsotso e 15, ebe e hlahlojoa ka ho silafatsa ha fluorescein. Haeba ho na le kotsi ea cornea, ophthalmologist e lokela ho buisana le bona. bakeng sa ba hemang khase ea monomethylamine, ba lokela ho tloha sebakeng seo ka potlako 'me ba fallele sebakeng se nang le moea o hloekileng ho boloka tsela ea ho hema e sa thijoe. Dyspnea ea bakuli e lokela ho fuoa oksijene inhalation, ka mor'a phekolo, mokuli o ile a romeloa sepetlele bakeng sa phekolo ea tšohanyetso. |
| morero | e sebelisoa e le lisebelisoa tsa mantlha tsa tlhaho bakeng sa chefo e bolaeang likokoanyana, meriana, masela le liindasteri tse ling, hape e sebelisoa ho phatloha ha li-gel tsa metsi. se sebedisoang joalo ka solvent le sehatsetsi e sebelisoa e le lisebelisoa tsa mantlha tsa organic lik'hemik'hale, tse sebelisoang hape ho chefo e bolaeang likokoanyana, meriana, masela le liindasteri tse ling. e sebelisoa e le surfactant, polymerization inhibitors le solvents, hape e sebelisoa indastering ea organic synthesis le khatiso le ho daea. bakeng sa ho qaptjoa ha chefo e bolaeang likokoanyana, meriana, dae, linoko, joalo-joalo, le bakeng sa electrolysis, electroplating monomethylamine ke ntho ea bohlokoa ea aliphatic amine organic chemical raw material, e sebelisoang haholo tlhahisong ea chefo e bolaeang likokoanyana, 'me e ka sebelisoa ho kopanya N- methyl chloroacetamide, e leng sebolaea-mafu sa organophosphorus dimethoate le omethoate; monocrotophos mahareng α-chloroacetylmethanamine; Carbamoyl chloride le methyl isocyanate e le li-intermediate tsa likokoana-hloko tsa carbamate; Hape le mefuta e meng ea chefo e bolaeang likokoanyana e kang monoformamidine, Amitraz, benzenesulfonon, joalo-joalo. Ho feta moo, e boetse e sebelisoa meriana, rabara, dae, indasteri ea letlalo le lisebelisoa tsa ho nka lifoto. methylamine e na le mefuta e mengata ea lisebelisoa tsa indasteri. Methylamine e ka sebelisoa e le moriana (activation, caffeine, ephedrine, joalo-joalo), chefo e bolaeang likokoanyana (carbaryl, dimethoate, chloramidine, joalo-joalo), dae (alizarin intermediate, anthraquinone intermediate, joalo-joalo), ho phatloha le mafura (ho phatloha ha gel ea metsi, monomethhydrazine , joalo-joalo), li-surfactants, li-accelerator, le lisebelisoa tse tala tse kang lithuso tsa rabara, lifoto. lik'hemik'hale le solvents. E bohareng bakeng sa tlhahiso ea li-agrochemicals le meriana bakeng sa tlhahiso ea N-methylpyrrolidone (solvent). |
| mokhoa oa tlhahiso | indastering, methylamine e entsoe ho tloha methanol le ammonia ka mocheso o phahameng ka converter eo ka linako tse ling e nang le lisebelisoa tse entsoeng ka alumina, leha ho le joalo, karabelo ea methylation ha e emise sethaleng sa monomethylamine, kahoo e fella ka motsoako oa monomethylamine, dimethylamine le trimethylamine. Laola karo-karolelano ea methanol le ammonia, ammonia feteletseng, 'me eketsa metsi le ho potoloha ha trimethylamine e thusa ho thehoa ha methylamine le dimethylamine, ha palo ea ammonia ke 2.5 linako tse ling tsa methanol, mocheso karabelo ke 425 deg C, ha karabelo. khatello ke 2.45MPa, amine e tsoakiloeng ea 10-12% ea monomethylamine, 8-9% ea dimethylamine le 11-13% ea trimethylamine e ka fumanoa. Kaha trimethylamine e etsa azeotrope e nang le ammonia le methylamine tse ling ka khatello ea sepakapaka, lihlahisoa tsa karabelo li arohanngoa ke motsoako oa khatello ea khatello ea khatello le "extractive distillation". Ho ipapisitsoe le tlhahiso ea 1t e tsoakiloeng ea methylamine, 1500kg ea methanol le 500kg ea metsi ammonia lia jeoa. Ho ea ka litlaleho tsa lingoliloeng tse amehang, ho fetola karo-karolelano ea methanol le ammonia ke mokhoa o atlehang oa ho fumana sehlahisoa se lakatsehang, methanol le ammonia karo-karolelano ea 1: 1.5 ke maemo a molemo ka ho fetisisa bakeng sa ho thehoa ha trimethylamine, methanol le ammonia karo-karolelano ea 1: 4. maemo a molemo ka ho fetisisa bakeng sa ho thehoa ha methylamine. Ho na le mekhoa e mengata ea tlhahiso ea monomethylamine, Empa methanol amination e sebelisoa haholo indastering. CH3OH + NH3 → CH3NH2 + H2O2CH3OH + NH3 →(CH3)2NH + 2H2O3CH3OH + NH3 →(CH3)3N + 3H2O ho tloha methanol le ammonia ka karo-karolelano ea 1: 1.5~4, tlas'a mocheso o phahameng le khatello e phahameng ea gase, khatello e phahameng ea likhase catalytic amination reaction e etsoa ka ho sebelisa activated alumina e le sesebelisoa, Sehlahisoa se tsoakiloeng sa mono-, di-le trimethylamine se hlahisoa, ebe se aroloa ka khatello e tsoelang pele ea distillation ka letoto la litšiea tsa distillation, tse fokolitsoeng le ho fokolloa le ho felloa ke metsi ho fumana lihlahisoa tsa mono-, di-le trimethylamine ka ho latellana. . |
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