Aldehyde Formic. Ukulungiselela aldehyde formic

aldehyde Formic noma formaldehyde - iyinhlangano igesi kungenambala ehlome, ezingemnandi isici iphunga. He is kakhulu oncibilikayo emanzini futhi alcohols. Formaldehyde kuyinto enobuthi kakhulu futhi kungabangela e umzimba womuntu izilonda. Ngaphezu kwalokho, kubhekwa umdlavuza.

Formaldehyde - ilungu wokuqala uchungechunge homologous, okuhlanganisa aliphatic aldehyde formic. Formic acid futhi ubukisa izindawo kuleli qembu.

chemical izakhiwo

Formaldehyde uyakwazi bahlanganyele yonke ukusabela okuyizinto sici uchungechunge homologous ka aldehydes aliphatic. Kubandakanya nge nucleophiles. It buhlobene futhi ukunciphisa ejenti. Lokhu kungenxa kakhulu ngenxa yokuthi ukuthi formaldehyde uphansi electron kwabantu ku-athomu carbon. Ngenxa yalesi sici isakhiwo kulula kakhulu ukungena zamakhemikhali ne ngisho nucleophiles ababuthakathaka kakhulu. Lokhu kuchaza iqiniso lokuthi aqueous aldehyde formic itholakala isimo amanzi amaningi.

ukukhiqizwa eyamukelayo

Akusekude kuqedwe ngaleli cala ifomula ulula. aldehyde Formic at ulimi chemical libukeka kanje: HCHO. The main indlela yezimboni ukukhiqizwa yayo - iyona namachibi of methanol. Cishe le ndlela yokusabela Kwenziwa usebenzisa kulethe esiliva. Temperature Kuyadingeka - 650 degrees. methanol namachibi kwenzeka ngesikhathi umfutho womoya.

Le nqubo isivele Adalberto isikhathi eside isetshenziswa yonke indawo. It is kahle balufunda. Cishe ama-80% formaldehyde sizila ukusabela oxidizing ka methanol. Nokho, lena akuyona indlela kuphela. A muva ke bezazisa indlela ethembisa nakakhulu. Kusekelwe ukusetshenziswa yensimbi-molybdenum yelikhono. Kulesi simo oyifunayo lokushisa ezingeni kuyehla kube degrees 300, futhi cishe aba nguhhafu.

Yaziwa kungenye inqubo zezimboni - the namachibi methane. Ukuphendula lo ifomula kunalokho elula: aldehyde formic eyatholakala ngesikhathi ukucindezela 1-2 MPA at degrees 450. I kulethe kuthathwe aluminium phosphate.

isicelo

Methanediol - isixazululo formaldehyde aqueous, elibangela amaprotheni denaturation. Lokhu izinga ivumela ukusetshenziswa ketshezi njengendlela agent ukushuka enkulu ekwakhekeni lesikhumba izinto. Liphinde kabanzi ukukhiqizwa Film-amabhayisikobho. Ngenxa enamandla izakhiwo tannic formaldehyde is njengenhlangano isinqandakuvunda ezaziwayo. It is kabanzi kwezokwelapha. Kususelwa ukukhiphele amalungiselelo isinqandakuvunda ezinjalo, njengoba "Formagel" futhi "Formidron". U-Adalberto isikhathi eside, aldehyde formic elisetshenziswa biology yokugcina biomaterials, ezifana isilwane izitho noma imigwamanda.

Okwamanje, ukuthola aldehyde formic ukhuni inzuzo futhi, Yebo, umkhakha ifenisha. Isetshenziselwa ukwenziwa inhlaka melaminokarbamidoformaldegidnyh. Zisetshenziswa womshini kuyizinhlayiyana ibhodi, ipulangwe nezezinye izimpahla zokwakha.

Lapho ukugcina aldehyde formic Kumele kuqashelwe ukuthi at okushisa ngezansi degrees 10 isixazululo iba esinamafu kanye ziyazika emhlophe livela. Futhi, formaldehyde is wasithukuthelela umoya-mpilo. Ngenxa yalokho, kwakhiwa ngenxa yokuwohloka ezengeziwe ekhelini uchungechunge ezintweni.

izakhiwo anobuthi

Ngakho, formaldehyde ibhalwe ngu namachibi of methanol ne-methane. Ngokungangabazeki, has a degree ngokwanele eliphezulu ubuthi. aldehyde Formic ngokuyinhloko kuthinta izinhlayiya eziyisisekelo zofuzo. Kusukela yalolu ketshezi ahlupheke futhi Izitho zokuzala. Kodwa-ke, ngokuvamile imakwe umonakalo umgudu, isikhumba kanye neso.

Formaldehyde kuyingozi iqiniso ukuthi inomphumela omubi CNS.

aldehyde Formic neze ezinobuthi - 60-90 ml izidakamizwa (kuye ngokuthi isisindo), sivaleleke ngaphakathi, imbangela yokufa. Izimpawu ubuthi zihlanganisa:

• prostration jikelele;
• paleness zesikhumba integument;
• nokuquleka;
• CNS nokucindezeleka;
• iphika;
• ubuhlungu bekhanda;
• amajaqamba, ikakhulukazi ebusuku.

Formic aldehyde nomthelela emzimbeni womuntu

Ukusetshenziswa aldehyde formic ekukhiqizeni ngokuvamile kuholela degrees ubuthi abasebenzi obuhlukahlukene. Nge eqinile ephefumula izilonda, ie ngu ephefumula, waphawula conjunctivitis futhi ifomu okukhulu ukucinana kwemigudu yokuphefumula, okuyinto ngezinye izikhathi kuholela edema yamaphaphu. Symptomatology e ephuza we-formaldehyde kuzokhulisa kuphela. Ngemva kwesikhashana, zikhona izimpawu yokulimala CNS ukucindezeleka. Kuyoba luboniswe isiyezi njalo, ukuzizwa ka kuphakama ukwesaba, Gait iba ongagxilile, futhi ebusuku umuntu kungaba ngisho nokuquleka.

Uma ushevu iphutha ngomlomo, uphawu lokuqala uzovutha nolwelwesi lwamafinyila we ipheshana wokugaya ukudla. Kuyoba ukuzibonakalisa ngesimo ubuhlungu, a ukuncinza emphinjeni futhi emphinjeni. Man azizwa retching eqinile, isisindo, + akabonisi esiswini sizoqukatha igazi. Ezimweni ezimbi kakhulu, ukuthuthukisa edema laryngeal waphawula reflex ukuboshwa zokuphefumula.

Ngo ubuthi okungalapheki lokuhlala elincane abantu kukhona kwesisindo eqinile, ukushukuma kwengqondo, ukuphazamiseka visual, ukuntula ubuthongo, kanye bekhanda ezingamahlalakhona.

Ushevu ne-formaldehyde

aldehyde Formic ngokuvamile atholakala emoyeni. Le nkampani ine abasebenzi emsebenzini okuhlobene womshini zokwenziwa inhlaka, nge ukuchayeka unomphela futhi yesikhathi eside ukuze formaldehyde evala kungenzeka ubuthi. Ngokuvamile ezinsukwini yokusebenza kuqala umuntu imakwe dermatitis ebusweni, izandla. Ukuba khona-formaldehyde emzimbeni kungabonwa yiwo wonke isimo Ukuwohloka izipikili - bona ukuthambisa futhi babe buthakathaka.

Eczema kanye dermatitis bangase babe nedumela nomzimba. Ngemva umuntu enenkinga elinobuthi, walibumba is by aldehyde formic ukuzwela eqinile. Kunobufakazi bokuthi formaldehyde kubathinta kabi ukusebenza kwesimiso sokuzala yomzimba zesifazane.

Ukusetshenziswa formaldehyde izimonyo

Okuqukethwe formaldehyde kuvunyelwe uyakulondoloza izimonyo, kodwa lokuhlushwa yayo kumele singeqi 0.1%. aldehyde Formic zingase wokuxubha okhilimu umzimba, ubuso nezandla.

Futhi e kwemithi, kwezinye ukuze uvimbele ukujuluka ngokweqile can kuyinto formaldehyde. okuhlushwa wayo avumelekile - 0.5%. Le into - okuhle isinqandakuvunda, ngisho ezifana ukolweni omncane kangakanani enamandla okubhubhisa ezincane-eziphilayo. It is nhlobo ukubeka iyiphi wamafutha ebusweni uma iyingxenye 5% formaldehyde. Igcwele ukubukeka dermatitis nokungezwani komzimba. Futhi aldehyde formic alisetshenziswa lokulondolozwa imikhiqizo yezimonyo, uma Bathengisa njengoba aerosols futhi izifutho.

Zonke imikhiqizo kumalebula awo kufanele ibe ulwazi mayelana okuqukethwe eziyingozi, ngisho noma inani 0.05%. Empeleni, kuze kube yilolu suku engakaze elicwengwé njengoba isixazululo we-formaldehyde zithinta isikhumba, kodwa ukuthi izilwane ke sibomvu olungaqinile ezaziwayo.

Umdlavuza aldehyde formic

Kuyaziwa ukuthi formaldehyde is wasithukuthelela selenium, iqhaza kanzulu kakhulu sulfuric acid. Imiphumela iba yinhlanganisela yokukhandleka ethersulfates-4-tetradetsilidioksan. Lokhu kwaziswa nge eziyinkimbinkimbi ngokuthi ngemva kokucubungula hydrate barium yombala oxide iba yokuwasha kakhulu. Kunengqondo-ke, yini le ngozi? Kodwa-formaldehyde sengezwe uhlu izinto nge izakhiwo umdlavuza. Nakuba degree of ingozi yokuthi ayizange esungulwe, kubalulekile ukuba acabangele iqiniso lokuthi aldehyde formic obulalayo izilwane. Ngokusho idatha esemthethweni izikhungo eziningi zesayensi zomhlaba, ubudlelwano phakathi ukusetshenziswa formaldehyde enkulu ekwakhekeni upende, inhlaka, izindwangu, Plastics, futhi okuvela umdlavuza izimila kubantu lawo. ingozi ikakhulukazi okusezingeni eliphezulu nomdlavuza nasopharyngeal.