Urea ndi chiyani? Fotokozani yosavuta angakwanitse

urea ndi chiyani, ndipo mbiri ya chiyambi chake? Chifukwa chake wotchedwa, kumene ntchito? Yesetsani kumvetsa.

History of atulukira urea

Iwo likukhalira kuti piss iye ali pa ubwenzi mwachindunji. Mu 1773, French sayansi Hilaire Ruel Maren kusankha izo kwa mkodzo anthu. Kenako mu 1828, a sayansi German ndipo dokotala Fridrih Voler ndi evaporation a cyanate kusungunuka ammonium (NH ₄ CNO) adalandira kwa chinthu zochita kupanga wopanda feteleza pawiri, ndi makhalidwe ake ngati urea. Ndi loopsa limayamba mbiri zimapangidwira organic, komanso loyamba pawiri organic analandira synthetically. Siyense mankhwala a kafukufuku wa sayansi akhoza kudzitama kuti kutsegula ake ndi sayansi yatsopano.

Kodi urea ndi kumene ikuchokera

Komabe, urea - chiyani icho? Izi pawiri mankhwala amene ali Chomangika ndipo akupereka kubalalika woyera kapena ofooka akuda granules odorless crystalline. Chilinganizo urea - NH2CONH2. Dzinali ena - urea. thunthu mosavuta sungunuka m'madzi. The chifukwa cha mankhwala urea ndi zidulo mchere, mkulu mankhwala ntchito ndi mchere.
Pa funso la chimene ali urea, kuchokera amazionera ya Maphunziro Akakhalidwe Kazolengedwa wa thupi, zikhoza adayankha, ndi mapeto mankhwala mapuloteni chimbudzi mu nyama ndi nsomba. The amuzolengedwa zikuchokera magazi chofunika kuti muli urea. Zolemba malire urea ponseponse ana magazi kwa zaka 14 - 6.4 mmol / l, ndi zaka, zili urea m'magazi ndi kuchuluka kwa 7.5 mmol / l.

Kukonzekera urea kumachitika njira mafakitale ndi mpweya woipa ndi amoniya kaphatikizidwe zimene Bazarova. Chifukwa cha ichi, ulimi wa urea ndi pamodzi kupanga mankhwala ena zochokera ammonia.

chifukwa urea

Ndipo kodi urea makampani? Pakuti zolinga zake ndi apanga? Mu mafakitale a resins, zomatira ntchito popanga wa matabwa CHIKWANGWANI ndi makampani mipando, pogwiritsa ntchito zizindikiro A. Urea Urea chizindikiro chomwechonso chikugwiritsidwa ntchito makampani mafuta kuti kuchotsa zinthu kwa mafuta paraffinic ndi kwa mafuta. Izi akumasula paraffin zofewa, oyenera kupanga njira mapuloteni mavitamini, zidulo mafuta ndi alcohols, osiyanasiyana detergents.

Wina dera ntchito urea - kuchotsa oxides wa asafe akutuluka utsi zomera matenthedwe mphamvu zinyalala yobwezeretsanso, kukatentha ndi zina zotero.

urea makampani mankhwala ndi chiyani?

Urea chikukhudza okodzetsa osmotic ndi zotsatira slabodeystvuyuschim. Ndi zopangira kupanga kukonzekera outputting madzi m'thupi la munthu (madzi m'thupi mankhwala). Mankhwalawa zofunika zochizira hydrocephalus, edema oziziritsa wa etiologies zosiyanasiyana. Komanso, urea ntchito kupanga hypnotics.

Musati muphonye mwayi wanu nawo ndi urea makampani chakudya. E927b zowonjezera chakudya - ndi china chirichonse kuposa urea ndi. Izo thobvu katundu, amachita ngati mkuzamawu ndi onunkhira mankhwala flavoring chakudya. Ntchito kupanga kumatafuna chingamu, luso ufa ndi ophika buledi mankhwala. Pamene anawaonjezera yisiti mtanda urea amachita monga michere sing'anga ndi katundu asafe ndi zikhalidwe yisiti.

Koma gawo lalikulu la urea mu dziko (pachaka yopanga matani 4 miliyoni pa chaka) amapita ku ulimi. Chopangidwa kuchokera urea fetereza kalasi B urea asafe katundu ndi lofunika kwambiri, chifukwa izo - oposa 46%. Ngakhale kuti urea mwangwiro sungunuka m'madzi, iye yekha zimatenga madzi monyinyirika kwambiri. Izi khalidwe abwino ndi wofunika kwambiri ndipo amalola kupeza fetereza lalikulu zedi, popanda mantha kuti m'matangadza slezhatsya ndi kuwasandutsa mwala yosungirako. Urea ali reactivity mkulu komanso zosavuta kwambiri chosakanikirana ndi zomera. Nthawi zambiri, urea ntchito mu magawo chithandizo preplant, ya misa wobiriwira zomera.