Hoʻomākaukau i ka procaine & procaine hcl

kahua procaine

CAS: 59-46-1

ʻAno: ka pauka crystalline keʻokeʻo

Ka helu hehee (kahi paila): 59 ~ 62 ℃

Kumu molekula: c13h2on2o2

Kaumaha molekula: 236.31

Procaine hcl

CAS: 51-05-8

I loko o ka 250ml ʻekolu mau ʻāʻī me ka stirrer a me ka thermometer, hoʻohui ʻia ka hopena nitrocaine me ka pH o 4.0-4.2.Ma lalo o ka hoʻoulu ʻana piha, hoʻohui ʻia ka pauka hao i hoʻāla ʻia ma 25 ℃ i nā manawa he nui.Ma hope o ka hoʻohui ʻana, piʻi koke ka wela o ka hopena a mālama i ka 40-45 ℃.ʻO ka manawa pane he 2 hola.Ma hope o ka kānana ʻana, holoi ʻia ke koena kānana i ʻelua manawa me ka liʻiliʻi o ka wai, ua hui pū ʻia ka wai holoi me ka filtrate, acidified i ka pH 5 me ka waika hydrochloric dilute (10%), a hoʻohui ʻia ka hopena sodium sulfide saturated i ka pH 7.8- 8.0 e hoʻokahe i ka paʻakai hao i loko o ka hoʻonā hopena.Hoʻopili ʻia ka filtrate i ka ph6 me kahi liʻiliʻi o ka waika hydrochloric dilute, a laila wela ma 50-60 ℃ no 10 mau minuke me kahi liʻiliʻi o ka carbon activated.Holoi ʻia ke koena kānana i hoʻokahi manawa me ka wai liʻiliʻi, ua hui pū ʻia ka wai holoi me ka filtrate, hoʻoluʻu ʻia ma lalo o 10 ℃, a alkalized me 20% NaOH a hiki i ka hoʻokaʻawale ʻana o ka procaine (pH 9.5-10.5).E kānana, holoi ʻelua, kaomi a hoʻokahe no ka paʻakai (procaine hcl)