Iyo Dhigirii Yekutsiva Sarudzo Nzira yeSodium Carboxymethyl Cellulose

Kuona dhigirii rekutsiva (DS) yesodium carboxymethyl cellulose (CMC) yakakosha pakutonga kwemhando uye kuve nechokwadi chekuenderana mune yayo zvivakwa uye kuita kwayo. Nzira dzinoverengeka dzinogona kushandiswa kuona iyo DS yeCMC, ine titration uye spectroscopic matekiniki ari iwo anonyanya kushandiswa. Heino tsananguro yakadzama yeiyo titration nzira yekuona iyo DS yesodium CMC:

1. Musimboti:

• Iyo titration nzira inovimba nekuita pakati pemapoka ecarboxymethyl muCMC uye yakajairwa mhinduro yehwaro hwakasimba, kazhinji sodium hydroxide (NaOH), pasi pemamiriro akadzorwa.
• Mapoka eCarboxymethyl (-CH2-COOH) muCMC anoita neNaOH kuumba sodium carboxylate (-CH2-COONA) nemvura. Hukuru hwekuita uku hwakaenzana nehuwandu hwemapoka ecarboxymethyl aripo muCMC molecule.

2. Reagents uye Equipments:

• Sodium hydroxide (NaOH) yakajairwa mhinduro yeinozivikanwa yekusangana.
• Muenzaniso weCMC.
• Acid-base chiratidzo (semuenzaniso, phenolphthalein).
• Burette.
• Conical flask.
• Distilled mvura.
• Stirrer kana magnetic stirrer.
• Analytical balance.
• pH mita kana pepa rechiratidzo.

3. Maitiro:

1. Muenzaniso Kugadzirira:
   • Weresa huwandu hwakati hwe CMC sampuli nemazvo uchishandisa analytical chiyero.
   • Dissolve iyo CMC sampuli mune inozivikanwa vhoriyamu yemvura yakanyungudutswa kugadzirira mhinduro yezvinozivikanwa. Ita shuwa kusanganisa zvakakwana kuti uwane homogeneous mhinduro.
2. Titration:
   • Pipette vhoriyamu yakayerwa yeCMC mhinduro mune conical flask.
   • Wedzera madonhwe mashomanana e-acid-base indicator (eg, phenolphthalein) kune flask. Chiratidzo chinofanira kuchinja ruvara pamagumo etitration, kazhinji kutenderedza pH 8.3-10.
   • Titrate iyo CMC mhinduro neyakajairwa NaOH mhinduro kubva muburette inogara ichikurudzira. Rekodha huwandu hweNaOH mhinduro yakawedzerwa.
   • Ramba uchinyora kusvikira kuguma kwasvika, kunoratidzwa nekuramba uchichinja kwemavara kwechiratidzo.
3. Kuverenga
   • Verenga iyo DS yeCMC uchishandisa inotevera formula:
   $��=�\times �\times �NaOH�CMC$

   DS=mCMCV×N×MNaOH

   Kupi:

   • $��$

     DS = Dhigirii reKutsiva.

   • $�$

     V = Vhoriyamu yeNaOH mhinduro inoshandiswa (mumarita).

   • $�$

     N = Normality yeNaOH mhinduro.

   • $�NaOH$

     MNaOH = Molecular huremu hweNaOH (g/mol).

   • $�CMC$

     mCMC = Misa yeCMC sampuli inoshandiswa (mumagiramu).

4. Dudziro
   • Iyo yakaverengerwa DS inomiririra avhareji nhamba yemapoka ecarboxymethyl paglucose unit muCMC molecule.
   • Dzokorora kuongororwa kakawanda uye kuverenga avhareji yeDS kuti uone chokwadi uye kuvimbika kwemhedzisiro.

4. Zvinotarisirwa:

• Ita shuwa kurongeka kwakaringana kwemidziyo uye kumira kwemareagents kune mhedzisiro chaiyo.
• Bata mhinduro yeNaOH nekungwarira sezvo iri caustic uye inogona kukonzera kupisa.
• Ita iyo titration pasi pemamiriro akadzorwa kuti uderedze kukanganisa uye kusiyanisa.
• Simbisa nzira uchishandisa referensi zviyero kana kuenzanisa kuongorora nedzimwe nzira dzakasimbiswa.

Nekutevera iyi nzira yekutangisa, dhigirii rekutsiva sodium carboxymethyl cellulose (CMC) rinogona kutsanangurwa nenzira kwayo, ichipa ruzivo rwakakosha rwekutonga kwemhando uye zvinangwa zvekugadzira mumaindasitiri akasiyana.