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iimveliso

Igama lesiNgesi: phenacetinum, phenacetin

[C10H13NO2 = 179.22]

Le mveliso yi-p-ethoxyacetanilide. Umxholo we-C10H13NO2 akufuneki ube ngaphantsi kwe-99.0%.

[uphawu] imveliso emhlophe, kunye akhazimlayo flake yikristale okanye emhlophe ngumgubo crystalline; engenasiphelo, incasa krakra kancinci.

Imveliso inyibilikiswa kwi-ethanol okanye kwi-chloroform, inyibilike kancinci emanzini abilayo, inyibilike kancinci kwi-ether, kwaye inyibilike kancinci emanzini.
Indawo yokunyibilika Indawo yokunyibilika yale mveliso (Isihlomelo kwiphepha 13) ngu-134 ~ 137 ℃.

[uhlolo] i-0.6g ye-organochlorine yathathwa yaze yafakwa kwiflask. I-50mg nickel aluminium alloy, 5ml 90% ye-ethanol, amanzi ayi-10ml kunye ne-2ml isisombululo se-sodium hayidroksayidi (1mol / L) zongezwa, Yibeke kwindawo yokuhlambela amanzi, ubushushu kunye nokugcwalisa kangangemizuzu eli-10, phola phantsi, uyihluze kwibhotile yokulinganisa eyi-50ml I-chloride iphepha lokucoca mahala, hlamba iflask kunye nephepha lokucoca ngamanzi amaxesha amaninzi, dibanisa isisombululo sokuhlamba kwibhotile yokulinganisa, yongeza amanzi ukungxenga kwisikali, gungqa kakuhle, hlula i-25ml, kwaye ujonge ngokomthetho (iphepha lesiHlomelo 35). Kwimeko yongxamiseko, thelekisa nesisombululo solawulo esenziwe nge-25ml yesisombululo esingenanto kunye ne-6ml isisombululo se-sodium chloride 02%).

Kwi-p-ethoxyaniline, thatha i-0.3g, yongeza i-1ml ethanol, isisombululo se-iodine (i-0.01mol / l) kude kube tyheli, emva koko yongeze i-0.05ml isisombululo se-iodine (0.01mol / l) kunye ne-3ml esandula ukubilisa amanzi abandayo. Yitshise ngokuthe ngqo ide inyibilike. Qaphela ngokukhawuleza xa kushushu. Ukuba umbala uphuhlisiwe, akufuneki ube nzulu kunomthamo ofanayo omnyama obomvu onguNombolo 4 isisombululo esimiselweyo semibala.

Thatha i-0.5g yale mveliso ukulungiselela i-carbonization elula, kwaye ujonge ngokomthetho. Ukuba ijika ibe tyheli, ayizukuba nzulu kunombala o-orenji omthubi onguNombolo. 4 isisombululo esifanelekileyo semibala yemitha efanayo; ukuba bomvu, ayisayi kuba nzulu kunombala obomvu omdaka nombolo 7 isisombululo esilinganiselweyo sombala wevolumu efanayo.

Ukuphulukana nokomisa: thatha imveliso kwaye uyomise kwi-105 ℃ iiyure ezingama-3, kwaye ukunciphisa umzimba akuyi kudlula kwi-0.5%.

Intsalela kucinezelo ayinakugqitha kwi-0.1%

[umxholo wokuzimisela] thatha malunga ne-0.35g yale mveliso, uyilinganise ngokuchanekileyo, uyibeke kwibhotile etyhidiweyo, yongeza i-40 ml ye-hydrochloric acid, ucofe ubushushu kunye ne-reflux kangangeyure e-1, pholisa phantsi, yongeza amanzi ayi-15ml, kunye ne-titrate nge-sodium nitrite Isisombululo (0.1mol / l) (kodwa ubuntununtunu begalvanometer butshintshelwe kwi-10 <- 3> A / grid) ngokwendlela yokumisa isigxina yokumisa (iSihlomelo 53). Yonke i-1ml yesisombululo se-nitrite sodium (0.1mol / l) ilingana ne-17.92mg C10H13NO2.

[Umsebenzi kunye nokusetyenziswa] iziyobisi antipyretic kunye iintlungu. Ngomkhuhlane, iintlungu, njl.

[Qaphela] ukusetyenziswa kwexesha elide kunye nokusetyenziswa okukhulu kunokubangela i-cyanosis okanye umonakalo wezintso.

[yokugcina] indawo yokugcina engena moya.


Ixesha lokuposa: Meyi-10-2021