Transcription of 4. REAGENTS - DrugFuture
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4. REAGENTS - DrugFuture
EUROPEAN PHARMACOPOEIA REAGENTS 01/2011:40000 : about : about 4. REAGENTS bp : about 103 C. Additional information for REAGENTS that can only be fully Acetaldehyde. C2H4O. (Mr ). 1000200. [75-07-0]. Ethanal. identified by a trademark or whose availability is limited may Clear, colourless flammable liquid, miscible with water and with be found in the KNOWLEDGE database on the EDQM website. ethanol (96 per cent). This information is given only to make it easier to obtain : about such REAGENTS and this does not suggest in any way that the : about mentioned suppliers are especially recommended or certified bp : about 21 C. by the European Pharmacopoeia Commission or the Council of Europe. It is therefore acceptable to use REAGENTS from Acetaldehyde ammonia trimer trihydrate.
the number of millilitres of1 M sodium hydroxiderequired for 1 g (n1). Dissolve 2.00 g in 20 mL ofcyclohexane R in a ground-glass-stoppered flask, cool in ice and add a cold mixture of 10 mL of aniline R and 20 mL of cyclohexane R.Boilthe mixture under a reflux condenser for 1 h, add 50.0 mL of1M sodium hydroxideand shake vigorously.
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