SU704A1 - Method for producing dinitro-4.8 naphthalene disulfonic acid - Google Patents
Method for producing dinitro-4.8 naphthalene disulfonic acidInfo
- Publication number
- SU704A1 SU704A1 SU74438A SU74438A SU704A1 SU 704 A1 SU704 A1 SU 704A1 SU 74438 A SU74438 A SU 74438A SU 74438 A SU74438 A SU 74438A SU 704 A1 SU704 A1 SU 704A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- disulfonic acid
- dinitro
- naphthalene disulfonic
- producing
- acid
- Prior art date
Links
- -1 dinitro-4.8 naphthalene disulfonic acid Chemical compound 0.000 title description 3
- 238000004519 manufacturing process Methods 0.000 title description 2
- 239000002253 acid Substances 0.000 description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- ZXVONLUNISGICL-UHFFFAOYSA-N 4,6-dinitro-o-cresol Chemical group CC1=CC([N+]([O-])=O)=CC([N+]([O-])=O)=C1O ZXVONLUNISGICL-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 230000000802 nitrating Effects 0.000 description 2
- 238000006396 nitration reaction Methods 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- YDPFPDNDNZUKPL-UHFFFAOYSA-N 3-nitronaphthalene-1,5-disulfonic acid Chemical compound C1=C([N+]([O-])=O)C=C2C(S(=O)(=O)O)=CC=CC2=C1S(O)(=O)=O YDPFPDNDNZUKPL-UHFFFAOYSA-N 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 150000004682 monohydrates Chemical class 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
Description
Предлагаемый способ имеет целью получение динитро - 4.8 - дисульфокислоты нафталина.The proposed method aims to obtain dinitro - 4.8 - naphthalene disulfonic acid.
Динитро - 4.8 - дисульфокислота получалась до сих пор или непосредственно введением двух нитрогрупп. в 1. 5 - дисульфокислоту ИЛИ донитрованием технического мононитродеривата последней кислоты (с преобладанием 1 - нитро - 4.8 - дисульфопродукта). Как известно при этом получаетс 1:6 - динитро - 4.8 - дисульфокислота (сравн. германск. патент Kalle 72665).Dinitro - 4.8 - disulfonic acid has been obtained so far or directly by the introduction of two nitro groups. in 1. 5 - disulfonic acid OR by donation of the technical mononitrodrievate of the last acid (with a predominance of 1 - nitro - 4.8 - disulfoproduct). As it is known, 1: 6 - dinitro - 4.8 - disulfonic acid is obtained (cf. German. Kalle 72665 patent).
Ввиду относительно небольшого содержани (в смеси мононитро - 4.8 - дисульфокислот) изомера 2 - нитро, нельз было заранее предсказать, как будет вести себ при нитровании этот последний.Due to the relatively low content (in a mixture of mononitro - 4.8 - disulfonic acids) of the isomer 2 - nitro, it was not possible to predict in advance how this latter would behave during nitration.
Авторами было найдено, что ттри нитровании 2 - нитро - 4.8 - дисульфокислоты получаетс продукт, немного ОТЛИЧНЫЙ от описанного в патенте Калле. По составу этот продукт представл ет также динитро - 4.8 - дисульфокислоту .The authors found that by treating 2 - nitro - 4.8 - disulfonic acid a product was obtained that was a little different from that described in the Calle patent. In composition, this product also represents dinitro - 4.8 - disulfonic acid.
300 част, серной кислоты (моногидрата ), и полученный раствор обрабатывают нитрующей смесью из 10 част, азотной КИСЛОТЫ (уд. в. 1,47) и 10 част, серной КИСЛОТЫ. Температура при нитровании не должна превышать 30. Смесь оставл ют сто ть четыре дн и затем выливают в троекратный объела ХОЛОДНОЙ воды. Полу1№нный раствор, если нужно, отфильтровываетс от гипса и высаливаетс глауберовой или поваренной СОЛЬЮ. Выделившийс продукт отфильтровываетс , промываетс раствором поваренной соли и сушитс . Выход теории. Продукт имеет вид бледножелтого кристаллического порошка , достаточно хорошо растворимого в воде. Раствор от аммиака окрашиваетс в оранжевый цвет, от едкого натра - в оранжево - красный.300 part of sulfuric acid (monohydrate), and the resulting solution is treated with a nitrating mixture of 10 parts, nitric acid (sp. Century 1.47) and 10 part of sulfuric acid. The temperature during nitration should not exceed 30. The mixture is left to stand for four days and then poured into three times the amount of COLD water. The semi-finished solution, if necessary, is filtered from the plaster and salted out by the glauber or cooked salt. The separated product is filtered, washed with sodium chloride solution and dried. The output of the theory. The product has the appearance of a pale yellow crystalline powder, quite soluble in water. The ammonia solution is colored orange, and from caustic soda — orange-red.
ПРЕДМЕТ ПАТЕНТА.SUBJECT OF THE PATENT.
Способ получени динитро - 4.8 - дисульфокислоты нафталина, отличающийс тем, что нитрованию подвергают 2 - нитро -.4,8 - дисульфокислоту нафталина, освобожденную от изомеров, получающихс одновременно при нитровании 1. 5-дисульфокислоты нафталина.The method for producing dinitro-4.8-naphthalene disulfonic acid, characterized in that 2-nitro-4.8-naphthalene disulfonic acid is nitrated, freed from isomers obtained simultaneously by nitrating 1. 5-disulfonic acid naphthalene.
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SU704A1 true SU704A1 (en) | 1924-09-15 |
| SU705A1 SU705A1 (en) | 1924-09-15 |
| SU706A1 SU706A1 (en) | 1924-09-15 |
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