SU58184A1 - The method of obtaining nitrosodimethylaniline - Google Patents
The method of obtaining nitrosodimethylanilineInfo
- Publication number
- SU58184A1 SU58184A1 SU29002A SU29002A SU58184A1 SU 58184 A1 SU58184 A1 SU 58184A1 SU 29002 A SU29002 A SU 29002A SU 29002 A SU29002 A SU 29002A SU 58184 A1 SU58184 A1 SU 58184A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- nitrosodimethylaniline
- obtaining
- solution
- reaction
- color
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 3
- LGDPTPLJZGPOJL-UHFFFAOYSA-N n,n-dimethyl-2-nitrosoaniline Chemical compound CN(C)C1=CC=CC=C1N=O LGDPTPLJZGPOJL-UHFFFAOYSA-N 0.000 title 1
- 239000000243 solution Substances 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 241001104043 Syringa Species 0.000 description 1
- 235000004338 Syringa vulgaris Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000009935 nitrosation Effects 0.000 description 1
- 238000007034 nitrosation reaction Methods 0.000 description 1
- 125000000018 nitroso group Chemical group N(=O)* 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
Description
могут быт1 крупными, но должны быть просе ны от пыли). При размешивании начинают процсс;- восстановлени . След т, чтобы все врем была кисла реакцн , дли чего придают част ми еще сол но кислоты . К концу восстановлени реакци должна быть не слишком кис,тон, чтобы ие образовать лишни.х количеств FeCl;. Всего дать :5i) ,o-ii кислоты не более 38и с на весь П1юцесс ннтрозировани и иоостаноилени . Темнор.1тура раство| а к концу восстанов;1ени может достигнуть 30 . По окончании Босстановлеии раствор делаетс прозрачным , имеет зеленоватый цвет и дает на конго слабо сиреневый вытек, а на фильтровальной бумаге - Слабо желтый вытек. вл ют сто ть сутки, в теченне которы.ч нрофи,1ьтрован11ы1| раствор де.шетс сонершеино бесцветным, носле чего ею отфильт|ю ыва1от от чугунных стружек. Чугунные стружкн пром.1вают небольшим количеством воды и эту воду приливают к раствору н-аминодиметиланилина . аннлина нутем обработки сол нокислого раствора диметилаиилина нитритом натри , отличающийс тем, что реакцию ведут без виешиего охлаждени , примен Такое разбавление, чтобы образующийс нитрозопродукт был в растворе. Раство. н-аминоднметиланилина остаПредмет и з о б |) е т о и и . Способ но;|ученн нитрозодиметнлmay be large, but must be sifted from dust). When stirring, begin the process; - recover. It should be kept sour reaction all the time, and the parts are given in more hydrochloric acid. By the end of the reduction, the reaction should not be too sour; tone, so as not to form excess amounts of FeCl ;. In total, give: 5i), o-ii acids not more than 38 and with for the whole process of nitrosation and cooling. Tehnor.1tura solution | and by the end of recovery; 1i can reach 30. At the end of Bosstantium, the solution is clear, has a greenish color and gives a weakly lilac color to the Congo, and a light yellow color to the Congo. are worth a day, during which time the game is, 11y1 | The solution of des Sonsetsheino is colorless, which is why it filters it from the cast iron shavings. Pig-iron chips are washed with a small amount of water and this water is poured into the solution of n-aminodimethylaniline. The use of sodium hydroxide with dimethylaylin, a hydrochloric acid solution, is characterized in that the reaction is carried out without supercooling, using such a dilution so that the resulting nitroso product is in solution. Rastvo. n-aminodnmetilanilina ostaPredmet and s about b |) e t about and and. Way but; | scientist nitrosodimetnl
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU29002A SU58184A1 (en) | 1940-01-13 | The method of obtaining nitrosodimethylaniline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU29002A SU58184A1 (en) | 1940-01-13 | The method of obtaining nitrosodimethylaniline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SU19439A1 SU19439A1 (en) | 1931-02-28 |
| SU58184A1 true SU58184A1 (en) | 1940-10-31 |
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SU58184A1 (en) | The method of obtaining nitrosodimethylaniline | |
| SU413227A1 (en) | ||
| SU131757A1 (en) | The method of producing methylthiocyanate | |
| FR798371A (en) | Process for preparing hydrocyanic acid | |
| SU75922A1 (en) | The method of obtaining aromatic amines containing hydroxyl and carboxyl groups | |
| SU56000A1 (en) | The method of obtaining cryolite | |
| SU112738A1 (en) | Magnesium colorimetric determination method | |
| DE752870C (en) | Process for the preparation of aminobenzenesulfonamidothiazoles | |
| SU23403A1 (en) | Method of reducing nitrobenzene to aniline | |
| SU16664A1 (en) | The method of obtaining benzidine sulfate, free from impurities of lead salts | |
| SU43132A1 (en) | Method for improving the quality of metal castings by communicating to the metal during its melting and solidification of high-frequency mechanical vibrations | |
| FR532289A (en) | Process for obtaining the precious elements of lignite | |
| FR846438A (en) | Process for preparing acid dyes | |
| SU90551A1 (en) | Method of washing wool fabrics during their finishing | |
| FR792554A (en) | Process for preparing azo dyes containing metals | |
| FR628120A (en) | Process for the production of benzobenzanthrone carboxylic acids and their derived vat dyes | |
| FR609720A (en) | Process for the preparation of the lime salt of acetyl-orthooxy-benzoic acid | |
| CH124668A (en) | Process for the preparation of a dinaphthyl dicarboxylic acid. | |
| FR575314A (en) | Process for the preparation of blue dyes for vats | |
| FR804872A (en) | Process for preparing compounds of the crotylidenecyanacetic acid type | |
| FR805648A (en) | Process for obtaining metal compounds of keratin acids | |
| FR850209A (en) | Process for obtaining hydrocyanic acid starting from thiocyanates | |
| FR20797E (en) | Method of manufacturing the stapling of bars used for wearing decorations | |
| FR894373A (en) | Process for preparing dyes for vats | |
| FR879264A (en) | Process for preparing dyes for vats |