Methyl joala | 67-56-1
Lintlha tsa Sehlahisoa:
| Lebitso la Sehlahiswa | Methyl joala |
| Thepa | Mokelikeli oa polar o se nang 'mala o tukang le o fetohang |
| Melting Point(°C) | -98 |
| Sebaka se belang(°C) | 143.5 |
| Ntho e phatsimang (°C) | 40.6 |
| Ho qhibiliha ha Metsi | miscible |
| Khatello ea mouoane | 2.14(mmHg ho 25°C) |
Tlhaloso ea Sehlahisoa:
Methanol, eo hape e tsejoang ka hore ke hydroxymethane, ke motsoako oa tlhaho le joala bo bonolo ka ho fetesisa bo entsoeng ka monokotsoai. Foromo ea eona ea lik'hemik'hale ke CH3OH/CH₄O, eo CH₃OH e leng mokhoa o mokhuts'oane oa sebopeho, o ka totobatsang sehlopha sa hydroxyl sa methano. Hobane e ile ea qala ho fumanoa ka distillation e omeletseng ea lehong, e boetse e tsejoa e le & ldquo; lehong joala & rdqu; kapa & ldquo; lehong moea & rdquo;. Tekanyo e tlaase ka ho fetisisa ea chefo ea molomo oa motho e ka ba 100mg/kg boima ba 'mele, ho noa ka molomo ho 0.3 ~ 1g/kg ho ka bolaea. E sebelisoa ha ho etsoa formaldehyde le chefo e bolaeang likokoanyana, joalo-joalo, 'me e sebelisoa e le sehlahisoa sa lintho tse phelang le denaturant ea joala, joalo-joalo.
Thepa ea Sehlahisoa le Botsitso:
Mokelikeli o hlakileng o se nang mebala, mouoane oa oona le moea oa oona li ka etsa metsoako e phatlohang, ha li chesoa ho hlahisa lelakabe le leputsoa. Mocheso o boima oa 240.0 ° C; khatello e matla 78.5atm, e kopantsoeng le metsi, ethanol, ether, benzene, ketone le metsoako e meng ea tlhaho. Mouoane oa eona o etsa motsoako o phatlohang le moea, o ka bakang mollo le ho phatloha ha o pepesehile mollong o bulehileng le mocheso o phahameng. E ka sebetsana ka matla le oxidant. Haeba e kopana le mocheso o phahameng, khatello e ka hare ho setshelo ea eketseha, 'me ho na le kotsi ea ho phunyeha le ho phatloha. Ha ho lelakabe le khanyang ha le tuka. E ka bokella motlakase o sa fetoheng 'me ea hotetsa mouoane oa eona.
Sesebelisoa sa Sehlahisoa:
1.E 'ngoe ea lisebelisoa tsa motheo tsa lihlahisoa tsa tlhaho, tse sebelisoang ha ho etsoa chloromethane, methylamine le dimethyl sulphate le lihlahisoa tse ling tse ngata tsa tlhaho. Hape ke thepa e tala bakeng sa chefo e bolaeang likokoanyana (likokoana-hloko, li-acaricides), meriana (sulfonamides, hapten, joalo-joalo), le e 'ngoe ea lisebelisoa tse tala bakeng sa motsoako oa dimethyl terephthalate, methyl methacrylate le methyl acrylate.
2.Tšebeliso e ka sehloohong ea methanol ke tlhahiso ea formaldehyde.
3. Tšebeliso e 'ngoe e kholo ea methanol ke tlhahiso ea acetic acid. E ka hlahisa vinyl acetate, fiber ea acetate le acetate, joalo-joalo Tlhoko ea eona e amana haufi-ufi le ea lipente, li-adhesives le masela.
4.Methanol e ka sebelisoa ho etsa methyl formate.
5.Methanol e ka boela ea etsa methylamine, methylamine ke amine ea bohlokoa ea mafura, e nang le naetrojene ea metsi le methanol e le lisebelisoa tse tala, e ka ba discrete ka ho sebetsa bakeng sa methylamine, dimethylamine, trimethylamine, ke e 'ngoe ea lisebelisoa tsa motheo tsa lik'hemik'hale.
6.E ka etsoa ka dimethyl carbonate, e leng sehlahisoa se nang le tikoloho le se sebelisoang meriana, temo le liindasteri tse khethehileng, joalo-joalo.
7.E ka etsoa ka ethylene glycol, e leng e 'ngoe ea lisebelisoa tse tala tsa petrochemical intermediate mme e ka sebelisoa ho hlahisa polyester le antifreeze.
8.E ka sebelisoa ha ho etsoa lihlahisoa tsa kholo, e leng molemo ho kholo ea lijalo tse omileng.
9. Hape e ka etsoa protheine ea methanol, methanol e le lisebelisoa tse tala tse hlahisoang ke ho belisoa ha likokoana-hloko tsa protheine ea methanol e tsejoa e le moloko oa bobeli oa protheine ea sele e le 'ngoe, co.mpabokhubelu bo nang le liprotheine tsa tlhaho, boleng ba phepo bo phahame, protheine e tala e phahame haholo ho feta ea tlhapi ea tlhapi le linaoa tsa soya, 'me e na le li-amino acid, liminerale le livithamine, tse ka sebelisoang sebakeng sa tlhapi, linaoa tsa soya, lijo tsa masapo. , nama le phofo ea lebese le pholileng.
10.Methanol e sebelisoa e le ho hloekisa le ho tlosa mafura.
11.E sebelisoa e le lisebelisoa tsa ho hlahloba, tse kang li-solvents, li-methylation reagents, li-reagents tsa chromatographic. E boetse e sebelisoa ho organic synthesis.
12.Hangata methanol ke solvent e molemo ho feta ethanol, e ka qhala matsoai a mangata a inorganic. E ka boela ea kopanngoa le peterole e le mafura a mang. Methanol e sebelisoa ho hlahisa peterole ea octane additive methyl tertiary butyl ether, methanol peterole, mafura a methanol, le protheine ea methanol le lihlahisoa tse ling.
13.Methanol hase feela lik'hemik'hale tsa bohlokoa tse tala, empa hape ke mohloli oa matla le mafura a koloi a nang le ts'ebetso e babatsehang. Methanol e kopana le isobutylene ho fumana MTBE (methyl tertiary butyl ether), e leng motsoako o phahameng oa octane unleaded peterole 'me e ka boela ea sebelisoa e le solvent. Ho phaella moo, e ka boela ea sebelisoa ho hlahisa olefin le propylene.
14.Methanol e ka sebelisoa ho hlahisa dimethyl ether. Mafura a macha a mokelikeli a entsoeng ka methanol le dimethyl ether a entsoeng ka tekanyo e itseng a bitsoa alcohol ether fuel. Matla a eona a ho tuka le matla a mocheso a phahame ho feta a khase e metsi.
Lintlha tsa polokelo ea Sehlahisoa:
1.E boloke sebakeng sa polokelo se pholileng, se nang le moea o pholileng.
2.Kena hole le mollo le mohloli oa mocheso.
3. Boloka setshelo se tiisitsoe.
4. E lokela ho bolokoa ka thoko ho metsi, ethanol, ether, benzene, ketone, 'me ha ea lokela ho tsoakoa.
5.Hanela tšebeliso ea lisebelisoa tsa mechine le lisebelisoa tse bonolo ho hlahisa litlhase.
Sebaka sa polokelo se lokela ho ba le lisebelisoa tsa phekolo ea tšohanyetso tse lutlang le lisebelisoa tse loketseng tsa bolulo.
