Ксиленоловый оранжевый тетранатриевая соль
- английское имяXylenol orange tetrasodium salt
- CAS №3618-43-7
- CBNumberCB2736235
- ФормулаC31H33N2NaO13S
- мольный вес696.66
- EINECS222-805-8
- номер MDLMFCD00044293
- файл Mol3618-43-7.mol
химическое свойство
| Температура плавления | 195 °C (dec.)(lit.) |
| Плотность накопления | 250kg/m3 |
| Fp | 93.3°C |
| температура хранения | room temp |
| растворимость | 510g/l |
| форма | Solid |
| цвет | Red |
| Запах | Odorless |
| РН | 8.1 (10g/l, H2O, 20℃) |
| Растворимость в воде | 510 g/L (20 ºC) |
| λмакс | 580 nm |
| Стабильность | Stable, but may be moisture sensitive. |
| Справочник по базе данных CAS | 3618-43-7(CAS DataBase Reference) |
| FDA UNII | 0549U815B1 |
| Система регистрации веществ EPA | Glycine, N,N'-[(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[(6-hydroxy-5-methyl-3,1-phenylene)methylene]]bis[N-(carboxymethyl)-, tetrasodium salt (3618-43-7) |
| UNSPSC Code | 12171502 |
| NACRES | NB.21 |
| Коды опасности | Xi | |||||||||
| Заявления о рисках | 23/24/25-36/38-36/37/38 | |||||||||
| Заявления о безопасности | 24/25-45-36/37-26-22-36 | |||||||||
| WGK Германия | 3 | |||||||||
| TSCA | Yes | |||||||||
| кода HS | 29349990 | |||||||||
| NFPA 704: |
|
Ксиленоловый оранжевый тетранатриевая соль химические свойства, назначение, производство
Химические свойства
red-brown to purple crystalline powderИспользование
Xylenol Orange tetrasodium salt is used as a photometric reagent and a metal indicator. It is a versatile indicator for EDTA titrations in acidic range. It is a common organic reagent used as an indicator for metal titrations.Общее описание
It is an acid dye or a vital stain, that is used as a fluorescent marker of bone growth.Методы очистки
It is generally contaminated with starting material (cresol red) and semi-xylenol orange. Purify it by ion-exchange chromatography using DEAE-cellulose, eluting with 0.1M NaCl solution, which will give the sodium salt [3618-43-7] . Cresol Red, semi-xylenol orange and iminodiacetic acid bands elute first. This procedure will give the sodium salt of the dye. To obtain the free acid, dissolve the salt in H2O and acidify it with AcOH. Filter it off, wash it with H2O and dry it first in air and then in a vacuum desiccator over P2O5 in the dark [Sato et al. Anal Chim Acta 94 317 1977]. [Beilstein 19 II 111, 19 III/IV 1135, 19/3 V 461.]Ксиленоловый оранжевый тетранатриевая соль поставщик
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