Метилтимоловый синий
- английское имяMETHYLTHYMOL BLUE
- CAS №1945-77-3
- CBNumberCB8362429
- ФормулаC37H40N2Na4O13S
- мольный вес844.74
- EINECS217-743-3
- номер MDLMFCD00148905
- файл Mol1945-77-3.mol
химическое свойство
| Плотность накопления | 570kg/m3 |
| температура хранения | Store below +30°C. |
| растворимость | 460g/l |
| форма | Powder |
| цвет | Dark green to reddish-brown |
| РН | 6.2 (10g/l, H2O, 20℃) |
| Растворимость в воде | Soluble in water (460 g/L) at 20°C. |
| Стабильность | Stable. Incompatible with strong oxidizing agents. |
| ИнЧИКей | DIZZDZCUMBBRSG-UHFFFAOYSA-J |
| SMILES | C1C=C2C(C3C=C(C(C)C)C(O)=C(CN(CC(O[Na])=O)CC(O[Na])=O)C=3C)(C3C=C(C(C)C)C(O)=C(CN(CC(O[Na])=O)CC(O[Na])=O)C=3C)OS(=O)(=O)C2=CC=1 |
| FDA UNII | 3T592ZMB9H |
| Система регистрации веществ EPA | Glycine, N,N'-[(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[[6-hydroxy-2-methyl-5-(1-methylethyl)-3,1-phenylene]methylene]]bis[N-(carboxymethyl)-, tetrasodium salt (1945-77-3) |
| UNSPSC Code | 12171502 |
| NACRES | NA.05 |
| Коды опасности | Xi | |||||||||
| Заявления о рисках | 5-36/37/38 | |||||||||
| Заявления о безопасности | 24/25-36-26-15 | |||||||||
| WGK Германия | 3 | |||||||||
| TSCA | Yes | |||||||||
| кода HS | 2934 99 90 | |||||||||
| NFPA 704: |
|
Метилтимоловый синий химические свойства, назначение, производство
Химические свойства
green-brown crystalline powderИспользование
Methylthymol Blue sodium salt is used as thymol-containing organic dye. It is used as an indicator for complexometry. It is used in determination of sulfate in rainwater. It combines with silica gel and aids in the separation and preconcentration of trace amounts of heavy metals from some salts.Методы очистки
Methyl Thymol Blue, sodium salt [1945-77-3] M 844.8, 1.89 x 104 at 435nm, pH 5.5, 252525 25 25 25 25pK 1 3.0, pK 2 3.3, pK 3 3.8, pK 4 7.4 (pK 4 7.2) , pK 5 11.5 pK 6 13.4. The starting material for synthesis is Thymol Blue. Purify it as for Xylenol Orange on in “Heterocyclic Compounds”, Chapter 4. [Tereshin et al. J Anal Chem USSR (Engl Trans) 20 1138 1965, K.rbl & Kakác Collect Czech Chem Commun 23 889 1958, Beilstein 19/8 V 2830.]Метилтимоловый синий поставщик
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