Ƙaddamar da Chloride a cikin Matsayin Abinci Sodium CMC

Ƙaddamar da chloride a cikin ƙimar abinci sodium carboxymethyl cellulose (CMC) za a iya aiwatar da shi ta amfani da hanyoyi daban-daban na nazari. Anan, zan zayyana hanyar da aka saba amfani da ita, wacce ita ce hanyar Volhard, wacce kuma aka sani da hanyar Mohr. Wannan hanyar ta ƙunshi titration tare da maganin nitrate na azurfa (AgNO3) a gaban alamar potassium chromate (K2CrO4).

Anan ga matakin mataki-mataki don tantance chloride a cikin ƙimar abinci sodium CMC ta amfani da hanyar Volhard:

Kayayyaki da Reagents:

1. Sodium carboxymethyl cellulose (CMC) samfurin
2. Azurfa nitrate (AgNO3) bayani (daidaitacce)
3. Potassium chromate (K2CrO4) bayani mai nuna alama
4. Nitric acid (HNO3) bayani (dilute)
5. Distilled ruwa
6. 0.1 M Sodium chloride (NaCl) bayani (daidaitaccen bayani)

Kayan aiki:

1. Ma'aunin nazari
2. Volumetric flask
3. Burette
4. Erlenmeyer flask
5. Pipettes
6. Magnetic stirrer
7. pH mita (na zaɓi)

Tsari:

1. Yi auna daidai gram 1 na samfurin sodium CMC a cikin busasshiyar 250 ml Erlenmeyer flask.
2. Ƙara kamar 100 ml na ruwa mai narkewa a cikin flask kuma motsawa har sai CMC ya narke gaba daya.
3. Ƙara 'yan digo na bayani mai nuna alamar potassium chromate a cikin flask. Maganin ya kamata ya zama launin rawaya.
4. Sanya maganin tare da daidaitaccen nitrate na azurfa (AgNO3) bayani har sai launin ja-launin ruwan kasa na chromate na azurfa (Ag2CrO4) kawai ya bayyana. Ana nuna ƙarshen ƙarshen ta hanyar samuwar hazo mai ja-launin ruwan kasa mai tsayi.
5. Yi rikodin ƙarar maganin AgNO3 da aka yi amfani da shi don titration.
6. Maimaita titration tare da ƙarin samfurori na maganin CMC har sai an sami sakamako mai ma'ana (watau daidaitaccen kundin titration).
7. Shirya ƙayyadaddun ƙayyadaddun ƙayyadaddun ruwa ta amfani da ruwa mai narkewa maimakon samfurin CMC don yin lissafin kowane chloride da ke cikin reagents ko gilashin gilashi.
8. Yi lissafin abun ciki na chloride a cikin samfurin sodium CMC ta amfani da dabara mai zuwa:

Inda:

• $�$

  V = ƙarar maganin AgNO3 da aka yi amfani da shi don titration (a cikin mL)

• $�$

  N = al'ada na maganin AgNO3 (a cikin mol / L)

• $�$

  M = daidaitaccen bayani na NaCl (a cikin mol/L)

• $�$

  W = nauyin samfurin sodium CMC (a g)

Lura: Dalilin
$35.45$

Ana amfani da 35.45 don canza abun ciki na chloride daga gram zuwa grams na ion chloride (
$��-$

Cl-).

Matakan kariya:

1. Yi amfani da duk sunadarai da kulawa kuma sa kayan kariya masu dacewa.
2. Tabbatar cewa duk kayan gilashin suna da tsabta kuma sun bushe don guje wa gurɓatawa.
3. Daidaita maganin nitrate na azurfa ta amfani da ma'auni na farko kamar maganin sodium chloride (NaCl).
4. Yi titration a hankali kusa da ƙarshen ƙarshen don tabbatar da ingantaccen sakamako.
5. Yi amfani da injin maganadisu don tabbatar da cakuɗewar mafita yayin titration.
6. Maimaita titration don tabbatar da daidaito da daidaiton sakamakon.

Ta bin wannan hanya, zaku iya tantance abun ciki na chloride a cikin ƙimar abinci sodium carboxymethyl cellulose (CMC) daidai da dogaro, tabbatar da bin ƙa'idodi masu inganci da ƙa'idodi na ƙa'idodin abinci.