Methylamine(CAS#74-89-5)
Ngozi uye Kuchengeteka
| Risk Codes | R12 - Kunyanya Kupisa R20 – Zvinokuvadza nekufema R37/38 - Inogumbura kune yekufema system uye ganda. R41 - Njodzi yekukuvara kwakakomba kwemaziso R34 – Inokonzera kusvirwa R20/22 – Zvinokuvadza nekufema uye kana ikamedzwa. R11 - Inopisa zvakanyanya R39/23/24/25 - R36/37/38 - Kushungurudza maziso, kufema system uye ganda. R23/24/25 – Muchetura nekufema, kubata ganda uye kana ukamedzwa. R40 - Humbowo hushoma hwekuita carcinogenic R19 - Inogona kuumba peroxides inoputika |
| Tsanangudzo Yekuchengetedza | S7 - Chengetedza mudziyo wakavharwa zvakasimba. S16 - Chengetedza kure nenzvimbo dzekudzima. S26 – Kana wasangana nemaziso, sukurudza nekukurumidza nemvura yakawanda uye tsvaga mazano ekurapwa. S36/37 - Pfeka zvipfeko zvekudzivirira zvakakodzera uye magurovhosi. S45 - Kana waita tsaona kana ukanzwa usinganzwe zvakanaka, tsvaga rubatsiro rwekuchipatara nekukasika (ratidza chinyorwa pese pazvinogoneka.) S29 - Usadurure mumadhiraini. S36/37/39 - Pfeka zvipfeko zvekudzivirira zvakakodzera, magurovhosi uye kudzivirira kweziso/chiso. S3/7 - S3 - Chengeta munzvimbo inotonhorera. S39 - Pfeka dziviriro yeziso / kumeso. S33 - Tora matanho ekudzivirira kubva kune static dischages. |
| UN IDs | UN 3286 3/PG 2 |
| WGK Germany | 2 |
| RTECS | PF6300000 |
| FLUKA BRAND F CODES | 4.5-31 |
| TSCA | Ehe |
| HS Code | 29211100 |
| Hazard Kirasi | 3 |
| Packing Group | II |
| Muchetura | LD50 nemuromo mumakonzo: 100-200 mg / kg (Kinney); LC50 mumakonzo: 0.448 ml/l (Sarkar, Sastry) |
Information
| organic makemikari mbishi zvinhu | methylamine, inozivikanwawo se methylamine uye aminomethane, inokosha organic kemikari raw materials uye intermediates, pakamuri tembiricha uye mumhepo kumanikidzwa kwegasi rinobvira colorless, high concentration kana compression liquefaction, ine simba ammonia hwema. Kunhuwa kwehove pakudzika kwakanyanya. Soluble mumvura, soluble mu ethanol, ether. Zviri nyore kupisa, gadzira musanganiswa unoputika nemhepo, kuputika muganho: 4.3% ~ 21%. Kune alkaline isina kusimba, alkaline kupfuura ammonia, uye inorganic acid kugadzira mvura inonyungudika munyu. Yakagadzirwa kubva kumethanol uye ammonia pasi pechiito chekushisa kwepamusoro uye kumanikidza kwakanyanya uye catalyst, uye inogonawo kugadzirwa nekupisa formaldehyde uye ammonium chloride kusvika 300 ℃ pasi pechiito che zinc chloride. Methylamine inogona kushandiswa mukugadzira mishonga yezvipembenene, mishonga, rubber vulcanization accelerators, dhayi, zvinoputika, dehwe, peturu, surfactants, ion exchange resin, pendi strippers, coatings uye additives. Chinhu chakakosha mbishi pakugadzira mushonga wezvipembenene Dimethoate, carbaryl uye chlordimeform. Methylamine inhalation toxicity yakaderera toxicity kirasi, yepamusoro inobvumirwa kuisa mumhepo 5mg/m3 (0.4ppm). Inoora, inogumbura maziso, ganda uye mucous membranes. Kana murazvo wakavhurika, pane njodzi yekupisa inokonzerwa nekupisa kwakanyanya, uye kukuvadzwa kwemasilinda uye zvishongedzo zvinokonzeresa kuputika. |
| First Aid yechepfu | methylamine ikirasi yepakati ine muchetura ine kushatirwa kwakasimba uye kuora. Mukugadzira uye panguva yekufambisa, nekuda kwekudonha netsaona, zvinokonzeresa kusangana kwehupfu hwehupfu. Ichi chigadzirwa chinogona kuputirwa kuburikidza nemhepo yekufema, mhinduro inogona kutorwa kuburikidza neganda, uye munyu unogona kuve nehupfu nekupinza netsaona. Ichi chigadzirwa chine simba rinokurudzira pameso, repamusoro rekufema, ganda uye mucosa. Inhalation yehuwandu hwakawanda inogona kukanganisa mapapu. Zviitiko zvakakomba zvinogona kukonzera pulmonary edema, kufema kunetseka syndrome uye kufa. Nekudaro, hapana nyaya dze systemic chepfu dzakataurwa kumba nekune dzimwe nyika. Liquid methylamine compounds ine kushatirwa kwakasimba uye ngura, inogona kukonzera kupiswa kwemakemikari eganda nemaziso. 40% methylamine aqueous solution inogona kukonzera marwadzo ekupisa kweziso, photophobia, misodzi, Conjunctival Congestion, kuzvimba kwemaziso, corneal edema uye superficial ulcer, zviratidzo zvinogona kugara kwe1 kusvika kumavhiki maviri. Kuratidzwa kwenguva refu kune yakaderera kuwanda kweiyo methylamine makomisheni, inogona kunzwa yakaoma maziso, mhino, huro uye kusagadzikana. [matanho erubatsiro rwekutanga] kana ganda rasangana, bvisa zvipfeko zvakasvibiswa pakarepo uye sukurudza zvakakwana nemvura yakawanda inoyerera, 0.5% citric acid inosuka ganda, mucous membrane uye gargles. kana maziso akasvibiswa, maziso anofanirwa kusimudzwa, osukurudzwa nemvura inoyerera kana saline kwemaminitsi gumi nemashanu, uye oongororwa nefluorescein staining. Kana pane kukuvadzwa kwecorneal, ophthalmologist inofanira kubvunzurudzwa. kune avo vakaputira monomethylamine gasi, vanofanira kukurumidza kubva panzvimbo uye vachienda kune imwe nzvimbo ine mhepo yakachena kuti vachengetedze nzira yekufema. Dyspnea yevarwere inofanira kupiwa oxygen inhalation, mushure mekurapa, murwere akatumirwa kuchipatara kuti awane kurapwa kwekukurumidzira. |
| chinangwa | inoshandiswa seyakakosha organic raw material yemishonga yezvipembenene, mishonga, machira uye mamwe maindasitiri, inoshandiswawo mumvura inoputika gel. inoshandiswa se solvent uye refrigerant inoshandiswa seyakakosha organic makemikari mbishi zvinhu, inoshandiswawo mumishonga yezvipembenene, mishonga, machira uye mamwe maindasitiri. inoshandiswa se surfactant, polymerization inhibitors uye solvents, inoshandiswawo muorganic synthesis uye kudhinda uye dhayi indasitiri. pakugadzirwa kwemishonga inoshanda yezvipembenene, mishonga yemishonga, dhayi, zvinonhuwirira, nezvimwewo, uye ye electrolysis, electroplating monomethylamine yakakosha aliphatic amine organic chemical raw material, iyo inoshandiswa zvakanyanya mukugadzirwa kwemishonga, uye inogona kushandiswa kugadzira N- methyl chloroacetamide, iyo iri pakati pe organophosphorus insecticide dimethoate uye omethoate; monocrotophos yepakati α-chloroacetylmethanamine; Carbamoyl chloride uye methyl isocyanate sepakati pe carbamate insecticides; Sezvimwewo mhando dzemishonga yezvipembenene yakadai semonoformamidine, Amitraz, benzenesulfonon, nezvimwewo. Pamusoro pezvo, inoshandiswawo mumishonga, rabha, dhayi, indasitiri yematehwe uye zvinhu zvinonzwisa tsitsi. methylamine ine huwandu hwakawanda hwemaindasitiri ekushandisa. Methylamine inogona kushandiswa semushonga (activation, caffeine, ephedrine, etc.), pesticide (carbaryl, dimethoate, chloramidine, etc.), dhayi (alizarin yepakati, anthraquinone yepakati, nezvimwewo), inoputika uye mafuta (gel rinoputika, monomethhydrazine , nezvimwewo), ma surfactants, accelerators, uye mbishi zvinhu zvakaita serubha aids, mafoto makemikari uye zvinonyungudutsa. Yepakati yekugadzirwa kweagrochemicals uye mishonga yekugadzirwa kweN-methylpyrrolidone (solvent). |
| kugadzira nzira | muindasitiri, methylamine inogadzirwa kubva kumethanol uye ammonia pakupisa kwepamusoro kuburikidza neshanduko iyo nguva nenguva yakashongedzerwa neyakagadziriswa alumina catalyst, zvisinei, iyo methylation reaction haina kumira padanho remonomethylamine, zvichikonzera musanganiswa wemonomethylamine, dimethylamine uye trimethylamine. Dzora chiyero che methanol uye ammonia, ammonia yakawandisa, uye kuwedzera mvura uye kutenderera kwe trimethylamine kunobatsira pakuumbwa kwe methylamine uye dimethylamine, kana huwandu hweammonia huri 2.5 nguva dzemethanol, kupisa kwekuita kuri 425 deg C, kana mhinduro kudzvinyirira ndeye 2.45MPa, amine yakasanganiswa ye10-12% ye monomethylamine, 8-9% ye dimethylamine uye 11-13% ye trimethylamine inogona kuwanikwa. Sezvo trimethylamine inoumba azeotrope ine ammonia uye mamwe methylamines paatmospheric pressure, maitiro ekugadzirisa anoparadzaniswa nekubatanidzwa kwekumanikidza distillation uye kuwedzera distillation. Kubva pakugadzirwa kwe1t yakasanganiswa methylamine, 1500kg yemethanol uye 500kg yemvura ammonia inopedzwa. Maererano nemishumo yemabhuku akakodzera, kushandura chiyero che methanol uye ammonia inzira inoshanda yekuwana chigadzirwa chinodiwa, methanol uye ammonia reshiyo ye1: 1.5 ndiyo yakanyanya kunaka mamiriro ekuumbwa kwe trimethylamine, methanol uye ammonia chiyero che1: 4 mamiriro akanakisa ekuumbwa kwemethylamine. Kune dzakawanda nzira dzekugadzira monomethylamine, Asi methanol amination inonyanya kushandiswa muindasitiri. CH3OH + NH3 → CH3NH2 + H2O2CH3OH + NH3 →(CH3)2NH + 2H2O3CH3OH + NH3 →(CH3)3N + 3H2O kubva kumethanol uye ammonia pareshiyo ye1: 1.5~4, pasi pekushisa kwepamusoro uye gasi rinoramba riripo catalytic amination reaction inoitwa nekushandisa activated alumina sechinhu chinokonzeresa, Iyo yakasanganiswa crude chigadzirwa chemono-, di-uye trimethylamine inogadzirwa, uye yobva yaparadzaniswa nekuramba ichidzvinyirirwa distillation kuburikidza nenhevedzano yemakoramu edistillation, yakanyungudutswa uye yakaderedzwa uye yakapera mvura kuti iwane mono-, di-uye trimethylamine zvigadzirwa zvichiteerana. . |
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