Njira Zoyeserera
Dzina la Njira: HyPromelsel - kutsimikiza kwa Hydroxypropoxy Gulu - kutsimikiza kwa Hydroxypropoxy Gulu
Kukula kwa ntchito: Njira iyi imagwiritsa ntchito njira yotsimikizika ya hydroxyprocrocrocy kuti mudziwe zomwe zili hydroxyprosevoxy mu hypomellose. Njirayi imagwiritsidwa ntchito ku hyPromelfese.
Mfundo ya Njira:WerenganiZomwe zili hydroxypropoxy mu mayeso oyeserera malinga ndi njira yotsimikizika yotsimikizika.
Reagent:
1. 30% (g / g) chromium trioxide Solution
2. Hydroxide
3.. Phenolphthalein Chizindikiro
4. Sodium bicarbonate
5. Mankhwala a sulfuric acid
6. Potaziyamu Iodide
7. Sodium Thiosulfate yankho (0.02Mol / l)
8.
Zida:
Kukonzekera zitsanzo:
1. Sodium hydroxide lation yankho (0.02Mol / l)
Kukonzekera: imwani 5.6ml yowoneka bwino kwambiri sodium hydroxide Solution, onjezerani madzi ozizira owiritsa kuti apange 1000ml.
Calbardice: Tengani 6g ya 6g ya potaum hydrogen Phtharate yowuma pa 105 ° Postery, onjezani madzi ozizira, kugwedeza kuti isasungunuke momwe mungathere; Onjezani madontho awiri a phenolphthalein yankho, gwiritsani ntchito madzimadzi awa, pofika kumapeto, potaziyamu hydrogen PHAThalate Aliyense 1ML ya sodium hydroxide lation (1mol / l) ndi ofanana ndi 20.42mg wa potaziyamu hydrogeni. Werengani kuwerengera chidwi cha yankholi kutengera kugwiritsa ntchito njirayi ndi kuchuluka kwa potaziyamu hydrogen Phthalate. Kuchepetsa pang'ono maulendo 5 kuti mupangitse kuchuluka kwa 0.02Mol / l.
Kusungirako: Ikani mu botolo la pulasitiki la polyethylene ndikusunga; Pali mabowo awiri mu pulagi, ndipo chubu 1 chagalasi imayikidwa m'dzenje lililonse, 1 chubu chimalumikizidwa ndi chubu cha soda la ma soda, ndipo chubu 1 imagwiritsidwa ntchito poyamwa madzi.
2. Phenolphthalein chisonyezo chotsani 1G ya phenolphthalein, onjezani 100ml wa Ethanol kuti usungunuke
3. Kale, tengani 0,1g ya Staver Potaum Dichromate adawuma pa 120 ° C mokhazikika, onjezerani 2.0g ya kuchepetsa ma sulfuric acid, gwiritsani ntchito bwino ndikusindikiza mwamphamvu; Pambuyo mphindi 10 m'malo amdima, onjezani 250ml yamadzi kuti muchepetse, ndipo nthawi yothetsera yolimba, yowonjezera 3 yobiriwira imagwiritsidwa ntchito ngati kukodza kolakwika. Aliyense 1ml wa sodium thiosulfate (0.1mol / l) ndi ofanana ndi 4.903g wa potaziyamu dichromate. Werengani kuchuluka kwa yankho molingana ndi kugwiritsa ntchito yankho ndi kuchuluka kwa potaziyamu diokromate. Kuchepetsa pang'ono maulendo 5 kuti mupangitse kuchuluka kwa 0.02Mol / l. Ngati kutentha kwa chipinda kuli pamwamba pa 25 ° C, kutentha kwa zomwe mungachite kuti musinthe ndi ma disinjikidwe kuyenera kutembenuzidwa mpaka 20 ° C.
4..
Njira iyi iyenera kukonzedwa mwatsopano musanagwiritse ntchito.
ZOCHITIRA: Tengani 0,1g ya izi, yeretsani molondola, ndikuyika mu botolo lokhazikika d, kuwonjezera 10% (g / g) Trichlorium trichloride. Dzazani steary yopanga chubu b ndi madzi ku cholumikizira, ndikulumikiza gawo la distillation. Amizidwani B ndi D mu bafa yamafuta (imatha kukhala glycerin), onetsetsani kuti madzi osamba osasunthika ndi madzi ozizira, ndipo ngati kutembenukira kwa madzi ozizira, ndipo ngati zingatheke, kuwongolera madziwo ndikuwongolera. Pasanathe mphindi 30, kwezani kutentha kwa mafuta mpaka 155ºC, ndikusungabe chubu cholumikizira, chotsani madontho atatu a acidity) (ml), kenako onjezani 0,5g ya sodium bicarbonate ndi 10ml ya kuchepetsa suluker acid Lembani voliyumu yowonongera V2 (ml). Mu mayeso ena opanda kanthu, lembani mavoliyumu VA ndi vb (ml) ya kuwononga sodium hydroxide lation (0.02Mol / l) ndi sodium thiosulfate yankho (0.02Mol / l) motero.
Post Nthawi: Apr-25-2024