Chii chinonzi urea: kuumbwa, kubatsirwa uye kukuvadza
IUrea ndeye nitrogen-yakavakirwa kemikari kemikari inoshandiswa muindasitiri. Mune organic chemistry, iwo mamiriro ane mazita akasiyana: carbonic acid diamide kana urea. Urea mufeteri fetiraiza inoshandiswa mubhizinesi rezvekurima. Makristuru asina ruvara asina ruvara (aine yakanaka solubility mumvura) ndiyo yekupedzisira chigadzirwa che protein synthesis. Mukugadzirwa kwezvirimwa, kukosha kwe urea mune yakakura nitrogen yezvinyorwa ndeye 45%.
Chii iwe urea: zvinobatsira uye zvinokuvadza
Iko kukosha kwe urea mukukwanisika, kusununguka kwekushandisa uye yakanaka goho. Kana isu tichienzanisa urea nemamwe emaminerari feteraiza, iyo pombi haisi yehupfu, nekuda kwekusavapo zvachose kweklorini. Mukushandisa, urea haina kungogumira kune:
- Kugadziridza kudzorerwazve kwevhu mushure mechando "zororo". Feteraiza yemaminera inoiswa kana uchidyara ivhu pakutanga kwematsutso. Ammonia yakawandisa inoputika mumhepo yakavhurika, uye ivhu rinozadzwa nezvikafu zvakakosha mukukudzisirwa kwehutachiona.
- Kupfeka kwemasamba. Izvo zvinongoshandiswa chete yekudiridza kwekugadzira kwevhu. Urea inosanganiswa nemvura uye inosaswa muminda.
Urea inzvimbo inosimbisa oxidizing, zvinoreva kuti makemikari akaunzwa muvhu anotamisa pH yevhu kudivi reasidhi. Vagadziri vemanyowa mafetiraiza, vachisimudzira zvigadzirwa zvavo zvinodhura, vari kubheja pane chinhu ichi. Muchokwadi, izvi hazvisi zvekushora. Kudzoreredza pH, semuenzaniso, pamwe nejenaguru (alkali), kuchagadzirisa dambudziko revagrarians. Pakazere, urea, limestone uye dizeli yekushanda muminda zvichiri kubhadhara zvakati wandei zvishoma pane kutenga organic zvinhu.
Iko kushandiswa kwemaminerari fetiraiza kunowanzobatanidzwa nekukuvadza kwezvirimwa zvakakura kumuviri. Asi izvi hazvishande kuna urea. Mushonga uyu unogara usingakuvadzi kuvanhu - mune yakasununguka fomu, kana mune yekupedzisira chigadzirwa. Uye kunyange, pane zvinopesana, mazhinji organic zvinodhaka anokuvadza kupfuura urea.
Mushure mekunge anzwisisa kuti urea chii, iye anochera anozotora mhedzisiro ozvisarudzira. Mushure mezvose, kushambadza kwakazara nezviratidziro zvemagazini ezvekurima uye mune zvinobuditsa nhau kunoitirwa "kupinza" mushonga unofarirwa. Hazvibatsiri kuti vanotengesa mafetiraiza anodhura kuti vanhu vashandise mafetiraiza anodhura. Nekudaro mazana emanzwiro asina kunaka nezve urea.
Muzhinji, urea ndiyo mhinduro yakakodzera yebindu, kicheni bindu, bhizinesi. Kune chero zvinodikanwa zvekurima. Chengetedza tarisiro yekuumbwa kwevhu (pH) uye nekunyatso kuverenga iyo dosage (sezvakaratidzwa nevachagadziri pamapakeji). Uye, nenzira, usasanganisa urea nembeu dzezvirimwa kana uchidyara - kana zvisina kudaro muti unofa mu bud (unopisa kunze).