SU857807A1 - Method of determination of 1-amino-8-naphtelene sulphuric acid or 2-oxi-3,6-naphtalene disulphuric acid bisodium sulphide - Google Patents
Method of determination of 1-amino-8-naphtelene sulphuric acid or 2-oxi-3,6-naphtalene disulphuric acid bisodium sulphide Download PDFInfo
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- SU857807A1 SU857807A1 SU792758107A SU2758107A SU857807A1 SU 857807 A1 SU857807 A1 SU 857807A1 SU 792758107 A SU792758107 A SU 792758107A SU 2758107 A SU2758107 A SU 2758107A SU 857807 A1 SU857807 A1 SU 857807A1
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- USSR - Soviet Union
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- acid
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- determination
- naphtelene
- bisodium
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
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тилформамида и довод т водой до метки . Приготовление стандартного водносол нокислого раствора хлорного железа.: 1,2 г хлорного железа (FeCI помещают в мерную колбу на 250 мл, добавл ют 2,5 мл концентрированной сол ной кислоты и довод т водой до метки. Раствор хлорного железа содержит 1 мг/мл железа и 3 мг/мл сол ной кислоты. К определенным объемам от 0,1 до 0,7 мл 0,1%-ного водно-диметилформамидного раствора 1-амино-8-нафталин сульфокислоты добавл ют до 2 мл воду 2 мл стандартного водно-сол нокислого раствора хлорного железа. Оптичес кую плотность растворов измер ют чер 10 мин после приготовлени растворов длина водны 620 км. Данные дл построени калибровочного графика, линейность которого соблюдаетс при содержании 10 7-10 г 1-амино-8-нафталинсульфокислоты в 4 мл раствора, содержащего 2 мг железа и б мг сол ной кислоты, приведены в табл. 1. Таблица 1 Ъ мг сол ной кислоты, приведены в 2-таблица в табл. 3 приведены данные по изменению оптической плотности раствора комплекса в зависимости от концентрации железа, сол ной кислоты в растворе . Оптическа плотность возрастает с уменьшением концентрации железа, сол ной кислоты, так как устойчивость комплексов зависит от концентрации сол ной кислоты. На этом, в частности основано специфическое определение соли 2-ок.си-З ,6-дисульфокислоты нафталина , когда соли 2-окси-З,б-дисульфокислоты нафталина (Р-соль) и 2-окси-б-сульфокислоты нафталина (сольtilformamide and dilute to the mark. Preparation of a standard solution of ferric chloride and ferric acid: 1.2 g of ferric chloride (FeCI is placed in a 250 ml measuring flask, 2.5 ml of concentrated hydrochloric acid is added and the mixture is made up with water. The solution of ferric chloride contains 1 mg / ml iron and 3 mg / ml hydrochloric acid. To certain volumes from 0.1 to 0.7 ml of a 0.1% aqueous dimethylformamide solution of 1-amino-8-naphthalene sulfonic acid, add up to 2 ml of water to 2 ml of standard water. -sulfuric chloride solution of ferric chloride. The optical density of the solutions is measured by black 10 min after preparation Solutions for water are 620 km long. The data for constructing a calibration graph, the linearity of which is maintained at a content of 10–7–10 g of 1-amino-8-naphthalenesulfonic acid in 4 ml of a solution containing 2 mg of iron and b mg of hydrochloric acid, is given in Table. 1. Table 1 mg of hydrochloric acid, are given in Table 2 in Table 3 the data on the change in the optical density of the solution of the complex depending on the concentration of iron and hydrochloric acid in the solution are given. Optical density increases with decreasing concentrations of iron and hydrochloric acid, since the stability of the complexes depends on the concentration of hydrochloric acid. This, in particular, is based on the specific determination of the salt of 2-hydroxy-3, 6-disulfonic acid naphthalene, when the salts of 2-hydroxy-3, b-disulfonic acid naphthalene (β-salt) and 2-hydroxy-β-sulfonic acid naphthalene (salt
соблюдаетс при содержании г динатриевой соли 2-окси-З,б-дисульфокислоты нафтсшина в 4 мл раствора, содержащего 2 мг железа.observed when the content of 2-hydroxy-3 disodium salt, naphthine-disulfonic acid disodium salt in 4 ml of a solution containing 2 mg of iron.
соли 2-ОКСИ-З,б-дисульфокислоты нафталина , отличающийс тем, что, с целью упрощени способа и сокращени его длительности, раст$8578076salts of 2-OXY-3, b-disulfonic acid naphthalene, characterized in that, in order to simplify the process and shorten its duration, grow $ 85,78076
Еор анализируемого вещества обраба-Источники информации,Eor of the analyzed substance - Sources of information
тывают водно-сол нокислым растворомприн тые во внимание при экспертизе хлорного железа с последующим изме- 1. Губен-Вейль. Методы органичесрением оптической плотности получен-кой химии М., Хими , 1967, с. 613. ного раствора.2. ТУ 6-09-07-665-76 (прототип).They are treated with hydrochloric acid solution taken into account in the examination of ferric chloride, followed by measuring 1. Guben-Weil. Methods of Organic Chemistry, Chemistry, 1967, p. 613 solution. TU 6-09-07-665-76 (prototype).
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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SU792758107A SU857807A1 (en) | 1979-04-26 | 1979-04-26 | Method of determination of 1-amino-8-naphtelene sulphuric acid or 2-oxi-3,6-naphtalene disulphuric acid bisodium sulphide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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SU792758107A SU857807A1 (en) | 1979-04-26 | 1979-04-26 | Method of determination of 1-amino-8-naphtelene sulphuric acid or 2-oxi-3,6-naphtalene disulphuric acid bisodium sulphide |
Publications (1)
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SU857807A1 true SU857807A1 (en) | 1981-08-23 |
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SU792758107A SU857807A1 (en) | 1979-04-26 | 1979-04-26 | Method of determination of 1-amino-8-naphtelene sulphuric acid or 2-oxi-3,6-naphtalene disulphuric acid bisodium sulphide |
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SU (1) | SU857807A1 (en) |
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1979
- 1979-04-26 SU SU792758107A patent/SU857807A1/en active
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