1. n-pentanol hpe vacuum distillation galaw na matu nbung n-gun hte n-gun lapran na hkrak ai matut mahkai lam
N-pentanol (1-pentanol) a nbung n-gun hta n-gun 138℃, raitim, n-gun n-gun hpe n-gun n-gun hte n-gun shayawm ai hku nna grai shayawm kau lu ai. "Lang a Chemistry Laika Buk" (16 lang ngu na shapraw ai) hte chyam dinglik ai lam ni a jahpan ni hku nga yang:
1. 20 mmHg n-gun hta: hka lim ai shara gaw 68-72℃daram rai nna, dai gaw laboratory kata hta lang ai vacuum masa ni rai nga ai.
2. 10 mmHg n-gun hta: hka lim ai shara gaw 55-58℃daram de bai yawm mat wa ai.
3. 50 mmHg n-gun hta: hka lim ai shara gaw 85-90℃daram rai nga ai.
*Data Source*: Lahta na manu ni gaw, madang dep ai hkum hkrang arung arai jahpan hte laika buk ni a jahpan ni hpe madung tawn nna galaw ai re. Tengman ai nbung katsi ai lam gaw, jak rung a hkrak ai lam hte n san seng ai lam ni zawn re ai lam ni a majaw ±2℃hku galai shai wa chye ai.
Vacuum distillation gaw system a n-gun hpe shayawm ya ai majaw, ntsin molecule ni gaw ntsin n-gun kaw na pru wa nna, n-gun n-gun de shang wa na matu loi ai, dai hku nna n-gun n-gun hpe shayawm kau ya lu ai. n-pentanol zawn re ai medium-polarity solvent ni a matu, n-gun hpe daw mi garan ai shaloi, n-gun 10-15℃daram hkrat sum mat ai.
II. Vacuum Distillation a matu ahkyak ai lam ni hte jat bang ai machye machyang ni
1. Arung arai lata ai lam: Kaja ai hku pat da lu na matu, n-gun-hkap hkam lu ai grup yin-npu na flask, vacuum pump, hte katsi ai shingnip ni hpe lang u.
2. Temperature hpe hkang lu ai: Localical grai n-gun n-ja hkra sau hka shin na matu hpaji jaw da ai. Distillation teng sha galaw ai shaloi, grau hkrak hkra hti lu na matu, thermometer hpe nbung pru ai shara kaw tawn da ra ai.
3. Hkamja lam hte seng nna hpaji jaw ga: n-pentanol gaw wan hkru chye ai majaw wan hkru ai shara ni hte tsan tsan tawn da ra ai. N-gun yawm ai npu hta akajawng sha katsi ai gaw, grai sawng ai hku katsi wa chye ai majaw, zeolite (sh) magnetic stirring galaw ra na re.
Jat jat ai application ni:
- n-pentanol hpe manam pyaw ai baw ni hpe galaw shapraw ai hte tsi mawan lapran na hkyen lajang ai hta law law lang lang lang ai. Vacuum distillation galaw ai gaw, arung arai ni a san seng ai lam hpe grau kaja hkra galaw ya lu ai.
- Isomers ni hpe (2-pentanol zawn re ai) matut nna garan ginhka ra ai rai yang, masa ni hpe garan ginhka ai column hpe lang nna grau kaja hkra galaw mai ai.
III. Hpaji ninghkring ni a jahpan hpe shingdaw ai lam hte chyahkring hkring san ai ga san ni
Laika buk amyu myu hta n-pentanol hpe shayawm ai n-gun npu hta loi mi shai ai boiling point ni hpe tsun da ai. Ga shadawn:
CRC a Chemical Physics Laika Buk hta 20 mmHg hta 70℃ngu tsun da ai;
Merck Index gaw 69℃hku nna tsun da ai.
Ndai n bung ai lam gaw shadawn shadang ladat ni hte sample san seng ai lam kaw na pru wa ai re. Chyam dinglik ai lam garai n galaw shi yang, chyam dinglik ai lam kaji langai mi hku nna Calibration galaw na matu hpaji jaw da ai.
Tsun ga nga yang: n-pentanol a matu vacuum distillation n-gun hpe yaw shada ai n-gun hpe madung tawn nna dawdan ra ai. mmHg hta 70℃daram katsi ai hpe hpaji jaw da ai, laksan jak rung masa ni hpe madung tawn nna galai shai ra ai.
