DIMERCAPROL - DIMERCAPROL Dimercaprolum B.A.L Va ong phan...

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DIMERCAPROL Dimercaprolum B.A.L Vaø ñoàng phaân ñoái quang C 3 H 8 OS 2 P.t.l: 124,2 Dimercaprol laø (2 RS )-2,3-disulfanylpropan-1-ol, phaûi chöùa töø 98,5 ñeán 101,5% C 3 H 8 OS 2 . Tính chaát Chaát loûng trong suoát khoâng maøu hoaëc maøu vaøng nhaït, coù muøi toûi. Tan trong nöôùc vaø daàu laïc, hoøa laãn vôùi ethanol 96% vaøbenzyl benzoat. Ñònh tính A. Hoaø tan 0,05 ml cheá phaåm trong 2 ml nöôùc, theâm 1 ml dung dòch iod 0,1 N (CĐ) . Maøu cuûa iod bieán maát ngay. B. Hoaø tan 0,1 ml cheá phaåm trong 5 ml nöôùc, theâm 2 ml dung dòch ñoàng sulfat 12,5% (TT). Tuûa maøu xanh ñen xuaát hieän vaø chuyeån nhanh sang maøu xaùm ñen. C. Trong bình noùn coù nuùtmaøi troän 0,6 g natri bismuthat (TT) (ñaõñöôïc ñun tröôùc ñoù ôû 200 o C trong 2 giôø) vôùi hoãn hôïp goàm 2,8 ml dung dòch acid phosphoric 10% (TT) vaø 6 ml nöôùc. Theâm 0,2 ml cheáphaåm, troän ñeàuvaø ñeå10 phuùt, thænh thoaûng laéc. Laáy 1 ml chaát loûng phía treân, theâm
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