SU45022A1 - The method of analysis of indaniline obtained from carbazole and n-nitrosophenol - Google Patents
The method of analysis of indaniline obtained from carbazole and n-nitrosophenolInfo
- Publication number
- SU45022A1 SU45022A1 SU162302A SU162302A SU45022A1 SU 45022 A1 SU45022 A1 SU 45022A1 SU 162302 A SU162302 A SU 162302A SU 162302 A SU162302 A SU 162302A SU 45022 A1 SU45022 A1 SU 45022A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- indaniline
- nitrosophenol
- carbazole
- analysis
- alcohol
- Prior art date
Links
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Description
Лучшие результаты получаютс , если в качестве растворител примен ть этиловый алкоголь и раствор подкисл ть уксусной кислотой. Реакци протекает количественно и, почти моментально.Best results are obtained if ethyl alcohol is used as the solvent and the solution is acidified with acetic acid. The reaction proceeds quantitatively and, almost instantly.
Пример. Навеска 0,2-0,3 г инданилина из карбазола и пара-нитрозофенола раствор ют в 100 см алкогол в колбе Эрленмейера емкостью 0,75 - 1 л при кип чении с обратным холодильником в течение 10 - 15 мин. Прибавл ют 1-2 см 80%-ной уксусной кислоты или соответствующее количество иной концентрации и титруют вначале быстро,Example. A weighed 0.2-0.3 g of indaniline from carbazole and para-nitrosophenol is dissolved in 100 cm of alcohol in a 0.75-1 l Erlenmeyer flask with reflux for 10-15 minutes 1-2 cm of 80% acetic acid or an appropriate amount of a different concentration is added and initially titrated quickly,
(108)(108)
к концу по капл м с выдержкой в 3-5 мин.by the end dropwise with an exposure time of 3-5 minutes.
-2Q- раствором гипосульфита до исчезновени фиолетовой окраски. Дл лучшей видимости перехода к концу титровани прибавл ют 100 см воды.-2Q-hyposulphite solution until the purple color disappears. For better visibility of the transition, 100 cm of water is added to the end of the titration.
Предмет изобретени .The subject matter of the invention.
Способ анализа инданилина, полученного из карбазола и пара-нитрозофенола, отличающийс тем, что спиртовой раствор инданилина титруют гипосульфитом натри в присутствии слабой кислоты.A method for analyzing indaniline obtained from carbazole and p-nitrosophenol, wherein the alcohol solution of indaniline is titrated with sodium hyposulfite in the presence of a weak acid.
Тип. .Печатный Труд. Зак. 6194-40аType of. . Printed Labor. Zak 6194-40а
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU162302A SU45022A1 (en) | 1935-02-04 | 1935-02-04 | The method of analysis of indaniline obtained from carbazole and n-nitrosophenol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU162302A SU45022A1 (en) | 1935-02-04 | 1935-02-04 | The method of analysis of indaniline obtained from carbazole and n-nitrosophenol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU45022A1 true SU45022A1 (en) | 1935-11-30 |
Family
ID=48359264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU162302A SU45022A1 (en) | 1935-02-04 | 1935-02-04 | The method of analysis of indaniline obtained from carbazole and n-nitrosophenol |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU45022A1 (en) |
-
1935
- 1935-02-04 SU SU162302A patent/SU45022A1/en active
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