Extraction and pKa(영문)
- 최초 등록일
- 2021.12.16
- 최종 저작일
- 2021.10
- 5페이지/
MS 워드
- 가격 2,500원
소개글
"Extraction and pKa(영문)"에 대한 내용입니다.
목차
Ⅰ. Purpose
Ⅱ. Background information
Ⅲ. Materials
Ⅳ. Procedure
Ⅴ. Observation and Data
Ⅵ. Conclusion (Summary)
본문내용
Ⅰ. Purpose
To separate each substance from a mixture by utilizing the difference in pK_a value
Ⅱ. Background
Extraction means transferring a solute dissolved in a solvent to another solvent. It is based on the difference in solubility of solute in two immiscible solvents.
< 중 략 >
Separation of phenol
1. Pour the upper layer into a new erlenmeyer flask C using the mouth of the separatory funnel. Add 30 mL of 6.0M sodium hydroxide solution and stir for 5 minutes.
2. Repeat the process similar to the separation of benzonic just before. Check the TLC of the organic layer, and if phenol remains, add 0.30 g of NaOH(s), stir for 5 minutes, and check TLC.
3. When the phenol is completely gone, transfer to a 500mL separatory funnel.
4. Shake 2~3 times as before and shake until there is no “hissing” sound.
5. When the layers are completely separated, take out the lower layer through the stopper into a 100mL Erlenmeyer flask D. Rinse the stem with water.
Recovering benzyl alcohol
참고 자료
Class Material-Extraction_and_pKa
Class Material-[Extraction video]
