ụzọ ule
Aha usoro: Nchọpụta HyPropose-mkpebi nke hydropopopopoxy otu-mkpebi nke hydropopoxy otu
Usoro nke ngwa: Usoro a na-eji usoro mkpebi siri ike iji chọpụta ọdịnaya nke hydropoxy na hypromellose. Usoro a dabara na hypromellose.
Isi nke usoro:GbakọọỌdịnaya nke hydroxypropoxy na Product Product dị ka usoro mkpebi siri ike.
Regagent:
1. 30% (g / g) chromium trioxide
2. Hydroxide
3. Phenolphthalein egosi
4. Bi socarbonate
5. Gute sọlfọ acid
6.. Potassiumloode
7.
8. Ntughari Starch egosi
Ngwa:
Nkwadebe nlele:
1.
Nkwadebe: Were 5.6ML nke sosonium jupụtara na sodium hydroxide ngwọta, tinye fresh sie mmiri oyi iji mee ka ọ 1000ml.
Calmration: were ihe dị ka 6G nke ọkọlọtọ potassium hydhalate a mịrị amị na 105 Celsius nke ọma, wụnye 50ml nke ọhụrụ sie mmiri oyi, gbanye ya na-agbaze mmiri dị ka o kwere mee; Tinye 2 tụlee nke ihe ngosi ihe ngosi, jiri tita mmiri a, mgbe ọ na-agagharị na njedebe nke njedebe, na ndị na-ahụ maka potassium hydrogen hydhate kpamkpam. Kwa 1ml nke sodium hydroxide titment (1mol / l) bụ 20.42mg nke potassium hydlegen hydlegen hydhalate. Gbakọọ ntinye uche nke ihe ngwọta a dabere na oriri nke ihe ngwọta a na ego nke potassium hydrogen thdhalate weere. Ọnụọgụ abụọ iji mee ugboro 5 iji mee ka ịta 0.02mol / l.
Nchekwa: Tinye ya na karama plastik polyethylene ma mee ka ọ kaa akara; E nwere oghere abụọ na plọg, a na-etinye akwa na iko 1 n'ime oghere ọ bụla, a na-ejikọ ya na soda na soda tube, na 1 tube iji suckey na-ackingụ mmiri mmiri.
2. Phenolphthalein egosiputa ihe eji egosi 1g nke phenolphthalein, tinye 100ml ethanol igbari
3 iyo. Callibration: Were ihe dị ka 0.15g nke ọkọlọtọ nke ọkọlọtọ dichromate a mịrị amị na 120 gboo mgbe niile, tinye ya na karama nke iodide, gbanye nwayọọ 40ml nke ịgbakwunye sulfuric acid, maa jijiji nke ọma ma mechie ya; Mgbe minit 10 n'ebe gbara ọchịchịrị, tinye 250ml mmiri iji tinye, na mgbe a na-eji 3 nke na-egosi na-acha odo odo na-acha odo odo, na-esitekwa A na-eji ya dị ka mmezi ikpe ọnwụ. Kwa 1ml nke sodium thiosulfate (0.1mol / l) bụ 4.903g nke potassium dichromate. Gbakọọ ngwọta nke ihe ngwọta dị dabere na oriri nke ihe ngwọta na ego nke potassium dichromate mere. Ọnụọgụ abụọ iji mee ugboro 5 iji mee ka ịta 0.02mol / l. Ọ bụrụ na ụlọ ahụ dị elu karịa 25 Celsius C, ọnọdụ okpomọkụ nke mmeghachi omume na mmiri diglution kwesịrị ka ajụ ihe dị ka 20 Celsius C.
4. Ngosipụta Starch na-egosi oke mmiri, tinye 5ml mmiri ma were nwayọ wụchaa, wee sie ya, wụsa, Ọ dị njikere.
Ihe ngwọta a kwesịrị ịdị mma tupu ojiji.
Usoro ọrụ: Were 0.11 tụlee ya n'ụzọ ziri ezi, tinye ya na karama distillation d, tinye 10m nke 30% (g / g) cadmium trichlorium trichlorium trichlorium. Jupụta Steam na-ebute tube b na mmiri na nkwonkwo, ma jikọta ngalaba distillation. Na-arịa b na d na mmiri ịsa ahụ (ọ nwere ike ịbụ glycerin), mee ka mmiri mmiri dị ladmium nke dị na karama a, ma ọ bụrụ na ọ dị mkpa, ka Nitrogen na-abanye ma na-achịkwa ọnụego ya na 1 afụ kwa sekọnd. N'ime nkeji iri atọ, bulie oke okpomọkụ nke mmiri ịsa ahụ ruo 155ºC, wezuga ya na mmiri, na-asa ya ma tinye ya na nchịkọta anakọtara, tinye 3 Azịza nke Phenolphthalein egosiputa ihe ngosi, na tattate na mita acidity), tinye ya na akara ngosi V1 (ML) rue mgbe emechara carbon dioxide ozo, tinye 1.0g nke potassium, tinye ya na ochichi nke oma (0.02mol / l) ka Isi okwu, Detuo olu V2 (ML). Na ule efu ọzọ, detuo mpịakọta VA na VB (ML) nke sodium hydroxide tit agwọ (0.02mol / l) na sodium thiosolfite tatation (0.02mol / l) n'otu n'otu.
Oge post: Apr-25-2024