Qhov txawv ntawm urea thiab thiourea yog tias urea tsis muaj sulfur atoms, whereas thiourea muaj sulfur atoms.
Urea thiab thiourea yog cov organic tebchaw uas muaj cov pa roj carbon atom txuas rau ob pawg amine. Ob lub tebchaw no sib txawv ntawm ib leeg raws li lwm lub atom txuas rau carbon atom; urea muaj cov pa atom sib txuas rau carbon atom thaum thiourea compound muaj sulfur atom sib txuas rau carbon atom.
YUrea yog dab tsi?
Urea yog cov organic compound uas muaj cov tshuaj formula CO(NH2)2. Peb tuaj yeem muab nws lub npe carbamide, thiab. Qhov no yog hom amide uas muaj ob pawg amine txuas nrog lub hauv paus carbonyl carbon atom. Cov molecule no yog ib qho qauv molecule uas cov khoom urea muaj cov pa oxygen koom nrog ob N-H-O hydrogen bonds. Cov pa roj carbon atom hauv urea molecule muaj sp2 hybridization. Ntxiv mus, C-N daim ntawv cog lus ntawm cov molecule muaj qhov tseem ceeb ntawm ob daim ntawv cog lus. Tsis tas li ntawd, cov pa oxygen atom hauv pawg carbonyl muaj qhov pib thaum piv nrog formaldehyde. Tsis tas li ntawd, qhov sib xyaw no muaj cov dej solubility siab uas qhia txog nws lub peev xwm los koom nrog hydrogen bonding nrog dej molecules.
Daim duab 01: Cov Qauv Tshuaj ntawm Urea Molecule
Feem ntau, urea ua lub luag haujlwm tseem ceeb thaum lub sij hawm metabolism ntawm nitrogen-muaj cov tebchaw hauv cov tsiaj, thiab peb tuaj yeem pom tias cov tshuaj no yog cov khoom muaj nitrogen loj hauv cov zis dhau los ntawm cov tsiaj. Urea yog cov khoom tsis muaj xim, tsis muaj ntxhiab tsw thiab muaj cov dej solubility siab. Tswv yim, nws yog ib tug nontoxic compound, thiab thaum nws yaj nyob rau hauv dej, cov aqueous tov ntawm urea tsis yog acidic los yog alkaline.
Thaum xav txog lwm yam kev siv urea, nws muaj txiaj ntsig zoo hauv kev ua liaj ua teb, thiab nws yog ib feem ntawm nitrogen-tso chiv. Qhov no vim tias urea muaj cov ntsiab lus nitrogen siab, thiab nws muaj tus nqi thauj mus los tsawg rau ib chav tsev nitrogen. Ntxiv mus, urea yog ib qho tseem ceeb raws li cov khoom siv raw rau kev tsim cov urea-formaldehyde resins thiab urea-melamine-formaldehyde cov ntaub ntawv.
Thiourea yog dab tsi?
Thiourea yog ib qho organosulfur compound uas muaj cov tshuaj formula SC(NH2)2. Cov tshuaj no zoo ib yam li urea hauv nws cov qauv tshuaj. Txawm li cas los xij, qhov sib txawv ntawm cov qauv tshuaj ntawm urea thiab thiourea yog qhov muaj cov pa oxygen atom lossis sulfur atom txuas rau carbon atom. Ntxiv mus, thiourea yog qhov sib txawv ntawm urea chemically.
Daim duab 02: Cov Qauv Tshuaj ntawm Thiourea
Thiourea yog ib qho qauv molecule, thiab peb tuaj yeem soj ntsuam qhov tsis muaj zog ntawm C-S chemical bond los ntawm C-N pi bonding. Cov nyiaj sib nrug no tau qhia los ntawm luv C=S daim ntawv cog lus hauv thiobenzophenone. Peb tuaj yeem soj ntsuam thiourea tshwm sim hauv ob daim ntawv tautomeric: thione daim ntawv thiab thiol daim ntawv. Daim ntawv thione yog daim ntawv tseem ceeb hauv cov tshuaj aqueous. Daim ntawv thiol tseem hu ua isothiourea.
Daim duab 03: Kev sib npaug ntawm Thione thiab Thiol Thiourea
Thaum xav txog cov ntawv thov ntawm thiourea, nws yog ib qho tseem ceeb raws li thiox precursor rau zus tau tej cov thiourea dioxide. Nws yog ib qho kev txo tus neeg sawv cev hauv kev ua textile. Ntxiv mus, cov tshuaj no tseem ceeb hauv kev tsim cov chiv.
Dab tsi yog qhov sib xws ntawm Urea thiab Thiourea?
- Urea thiab thiourea yog cov organic compounds
- Cov no yog amines.
- ob leeg yog cov qauv molecules.
Qhov txawv ntawm Urea thiab Thiourea yog dab tsi?
Urea thiab thiourea yog cov organic tebchaw uas muaj cov pa roj carbon atom txuas rau ob pawg amine. Qhov sib txawv tseem ceeb ntawm urea thiab thiourea yog tias urea tsis muaj sulfur atoms, thaum thiourea muaj sulfur atoms. Ntxiv mus, urea yog ib qho tseem ceeb hauv cov metabolism hauv cov tsiaj, ua ib feem ntawm cov chiv, hauv kev tsim cov urea-formaldehyde resins, thiab lwm yam thaum thiourea tseem ceeb ua thiox precursor rau zus tau tej cov thiourea dioxide, tseem ceeb rau zus tau tej cov chiv, thiab lwm yam..
Hauv qab no yog cov ntsiab lus ntawm qhov sib txawv ntawm urea thiab thiourea hauv daim ntawv tabular.
Summary – Urea vs Thiourea
Urea thiab thiourea yog cov organic tebchaw uas muaj cov pa roj carbon atom txuas rau ob pawg amine. Qhov sib txawv tseem ceeb ntawm urea thiab thiourea yog tias urea tsis muaj sulfur atoms, whereas thiourea muaj sulfur atoms.
