Methylamine(CAS#74-89-5)
Tulaga lamatia ma le Saogalemu
| Tulaga lamatia | R12 – Sili ona mu R20 – E afaina pe a manava R37/38 – Fa'aitaita i le manava ma le pa'u. R41 – Tulaga lamatia o le faaleagaina mata R34 – Mafua ai mu R20/22 – E afaina pe a manava ma pe a foloina. R11 – Sili ona mu R39/23/24/25 - R36/37/38 – Fa'aitaita'i i mata, faiga manava ma le pa'u. R23/24/25 – O'ona pe a manava, fa'afeso'ota'i ma pa'u ma pe a foloina. R40 – Fa'amaoniga fa'atapula'a o se a'afiaga tuga R19 – E mafai ona fausia ai ni peroxide pāpā |
| Fa'amatalaga Saogalemu | S7 – Ia tapuni le atigipusa. S16 – Tausia mai mea e mu ai. S26 – Pe a pa'i i mata, fufulu vave i le tele o vai ma saili fautuaga fa'afoma'i. S36/37 – Fai ofu puipui ma totigilima talafeagai. S45 – I se fa'alavelave po'o ua e lagona le le lelei, saili vave fautuaga fa'afoma'i (fa'aali le igoa pe a mafai.) S29 – Aua le sasaa i totonu o alavai. S36/37/39 – Fai ofu puipui talafeagai, totigilima ma mata/mata. S3/7 - S3 – Taofi i se nofoaga malulu. S39 – Fai le puipuiga o mata/mata. S33 – Fa'asagatau fa'asagatau le lafoa'i. |
| UN ID | UN 3286 3/PG 2 |
| WGK Siamani | 2 |
| RTECS | PF6300000 |
| FLUKA BRAND F CODES | 4.5-31 |
| TSCA | Ioe |
| HS Code | 29211100 |
| Vasega o Tulaga Lamatia | 3 |
| Fa'aputuga Vaega | II |
| Oona | LD50 tautala tautala i isumu: 100-200 mg/kg (Kinney); LC50 i isumu: 0.448 ml/l (Sarkar, Sastry) |
Fa'amatalaga
| vaila'au fa'aletino fa'aletino | methylamine, e taʻua foi o le methylamine ma le aminomethane, o se vailaʻau faʻasolosolo taua ma mea faʻapitoa, i le vevela o le potu ma le mamafa o le ea mo le kasa e leai ni lanu mumu, maualuga maualuga poʻo le faʻamalosi liquefaction, ma se manogi malosi ammonia. Le manogi i'a i le maualalo tele. Soluble i le vai, soluble i le ethanol, eter. Faigofie ona mu, fai se paluga paluga ma le ea, faʻatapulaʻa faʻalavelave: 4.3% ~ 21%. E iai le alkaline vaivai, alkaline nai lo le ammonia, ma le acid inorganic e gaosia ai masima soluble vai. E faʻapipiʻiina mai le methanol ma le amonia i lalo o le gaioiga o le maualuga o le vevela ma le maualuga o le mamafa ma le faʻamalosi, ma e mafai foi ona saunia e ala i le faʻamafanafanaina o formaldehyde ma le ammonium chloride i le 300 ℃ i lalo o le gaioiga o le zinc chloride. Methylamine e mafai ona faʻaaogaina i le gaosiga o vailaʻau faʻamaʻi, vailaʻau, paʻu vulcanization accelerators, vali, mea pāpā, paʻu, suauʻu, surfactants, ion exchange resins, vali vali, paʻu ma faʻaopoopoga. O se mea taua tele mo le gaosiga o vailaau faʻasaina Dimethoate, carbaryl ma chlordimeform. Methylamine inhalation toxicity o le maualalo toxicity vasega, maualuga faʻatagaina faʻatonuga i le ea 5mg/m3(0.4ppm). E pala, fa'afefe i mata, pa'u ma mucous membranes. I le tulaga o le mumu matala, o loʻo i ai se lamatiaga o le mu e mafua mai i le vevela maualuga, ma o le faʻaleagaina o cylinders ma mea faʻaoga e mafua ai le pa. |
| Fesoasoani Muamua mo le 'ona | methylamine ose vasega oona feololo ma malosi ita ma corrosivity. I le gaosiga o le gaosiga ma le taimi o felauaiga, ona o le faʻalavelave faʻafuaseʻi, o le a mafua ai le faʻafesoʻotaʻi o mea oona. O lenei oloa e mafai ona manavaina e ala i le manava, o le vaifofo e mafai ona mitiia i totonu o le paʻu, ma o le masima e mafai ona oona i le faʻafuaseʻi o le ingestion. O lenei oloa o loʻo i ai se malosi faʻaosofia i mata, pito i luga o le manava, paʻu ma le mucosa. E mafai ona fa'aleagaina mama le manava. O tulaga ogaoga e mafai ona mafua ai le edema pulmonary, ma'i tigaina o le manava ma le oti. Peita'i, e le'i fa'ailoa mai i totonu ma atunu'u i fafo ni fa'ama'i oona. Ole methylamine vai e malosi le ita ma le pala, e mafai ona mu ai mata ma paʻu. 40% methylamine vaifofo vai e mafai ona mafua ai le tiga mu o mata, photophobia, loimata, Conjunctival Congestion, fulafula laumata, edema corneal ma papa'u papa'u, o faailoga e mafai ona tumau mo le 1 i le 2 vaiaso. O le fa'aalia umi i le maualalo o fa'aputuga o le methylamine, e mafai ona lagona mata mago, isu, fa'a'i ma le fa'anoanoa. [faiga fesoasoani muamua] pe a faʻafesoʻotaʻi le paʻu, aveese vave lavalava leaga ma fufulu lelei i le tele o vai tafe, 0.5% citric acid e fufulu ai le paʻu, mucous membranes ma gargles. pe a afaina mata, e tatau ona sii i luga laumata, fufulu i le vai tafe poʻo le saline mo le itiiti ifo ma le 15 minute, ona suʻesuʻeina lea e le fluorescein staining. Afai e iai se manu'a o le i'u, e tatau ona fa'afeso'ota'i se foma'i mata. mo i latou o loʻo manavaina le kasa monomethylamine, e tatau ona latou vave alu ese mai le vaaiga ma agai i se nofoaga e iai le ea fou e taofia ai le manava o le manava. Dyspnea o tagata gasegase e tatau ona tuʻuina atu le okesene inhalation, pe a uma togafitiga, na auina atu le tagata maʻi i le falemaʻi mo togafitiga faʻafuaseʻi. |
| faamoemoe | e faʻaaogaina e avea o se mea faʻapitoa faʻapitoa mo vailaʻau faʻamaʻi, vailaʻau, ie ma isi pisinisi, faʻaaogaina foi i vai gel mea pāpā. fa'aaogaina e fai ma vaisu ma fa'alili fa'aaogaina e fai ma mea fa'ameamea fa'aola, fa'aaogaina fo'i i vailaau fa'asaina, vaila'au, ie ma isi pisinisi. faʻaaogaina e pei o le surfactant, polymerization inhibitors ma solvents, faʻaaogaina foi i le faʻaogaina o meaola ma le lomitusi ma le valiina o pisinisi. mo le tuufaatasia o vailaau lelei e tineia ai manu faalafua, vailaʻau, vali, mea manogi, ma isi, ma mo le electrolysis, electroplating monomethylamine o se aliphatic amine organic chemical raw material, lea e masani ona faʻaaogaina i le gaosiga o vailaau faʻasaina, ma e mafai ona faʻaaogaina e faʻapipiʻi ai N- methyl chloroacetamide, o le vaeluaga o le organophosphorus insecticide dimethoate ma le omethoate; monocrotophos intermediate α-chloroacetylmethanamine; Carbamoyl chloride ma le methyl isocyanate e fai ma sui o vailaau faʻamaʻi carbamate; Faʻapea foʻi ma isi vailaʻau faʻamaʻi e pei o le monoformamidine, Amitraz, benzenesulfonon, ma isi. E le gata i lea, e faʻaaogaina foi i vailaʻau, paʻu, vali, paʻu paʻu ma mea faʻapitoa. methylamine o loʻo i ai le tele o faʻaoga faʻapisinisi. Methylamine e mafai ona faʻaaogaina e fai ma vailaʻau (faʻagaoioia, caffeine, ephedrine, ma isi), vailaau faʻasaina (carbaryl, dimethoate, chloramidine, ma isi), vali (alizarin intermediate, anthraquinone intermediate, ma isi), mea pāpā ma fafie (vai gel pa, monomethhydrazine. , ma isi), mea fa'afefeteina, mea fa'avavevave, ma mea mata e pei o fesoasoani pa'u, vaila'au fa'aata ma solvents. O se mea fa'avaitaimi mo le gaosiga o vaila'au fa'ato'aga ma vaila'au mo le gaosiga o le N-methylpyrrolidone (solvent). |
| auala gaosiga | alamanuia, methylamine ua synthesized mai le methanol ma amonia i le vevela maualuga e ala i se converter lea e faʻapipiʻiina i nisi taimi i se faʻamalosi alumina faʻamalosi, ae ui i lea, e le taofia le tali o le methylation i le tulaga o le monomethylamine, ma mafua ai ona faʻafefiloi le monomethylamine, dimethylamine ma trimethylamine. Puleaina le fua faatatau o le methanol ma le amonia, ammonia sili atu, ma faaopoopo le vai ma le taamilosaga o le trimethylamine e fesoasoani i le fausiaina o le methylamine ma le dimethylamine, pe a oʻo i le aofaʻi o le ammonia e 2.5 taimi o le methanol, o le vevela o le tali e 425 deg C, pe a faʻaalia le tali. mamafa o le 2.45MPa, o se amine fefiloi o 10-12% o le monomethylamine, 8-9% o dimethylamine ma le 11-13% o le trimethylamine e mafai ona maua. Talu ai o le trimethylamine o loʻo fausia ai se azeotrope ma ammonia ma isi methylamines i le mamafa o le ea, o mea faʻaalia e vavaeeseina e ala i le tuʻufaʻatasia o le faʻamaʻiina o le mamafa ma le faʻafefeteina. Faʻavae i luga o le gaosiga o le 1t fefiloi methylamine, 1500kg o methanol ma 500kg o le ammonia vai e faʻaumatia. E tusa ai ma lipoti o tusitusiga talafeagai, o le suia o le fua faatatau o le methanol ma le amonia o se auala aoga e maua ai le oloa manaʻomia, methanol ma le ammonia ratio o le 1: 1.5 o tulaga sili lea mo le faʻavaeina o le trimethylamine, methanol ma le ammonia ratio o le 1: 4. tulaga sili ona lelei mo le fausiaina o le methylamine. E tele auala gaosiga o le monomethylamine, Ae o le amination methanol e masani ona faʻaaogaina i alamanuia. CH3OH + NH3 → CH3NH2 + H2O2CH3OH + NH3 →(CH3)2NH + 2H2O3CH3OH + NH3 →(CH3)3N + 3H2O mai le methanol ma le amonia i le fua faatatau o le 1: 1.5 ~ 4, i lalo o le vevela maualuga ma le maualuga o le mamafa, o le faʻaauau pea o le kasa vaega. tali amination catalytic ua faia e ala i le faaaogaina o alumina faagaoioia o se catalyst, O le fefiloi oloa mama o le mono-, di-ma trimethylamine ua gaosia, ona tuueseeseina lea e ala i le faaauau pea o le distillation mamafa e ala i se faasologa o koluma distillation, condensed ma deammoniated ma dehydrated e maua mono-, di-ma trimethylamine oloa faasologa. |
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