bis[4-(dimethylamino)phenyl]methanethione
4,4'-bis(dimethylamino)thiobenzophenone
CAS: 1226-46-6
Molecular Formula: C17H20N2S
bis[4-(dimethylamino)phenyl]methanethione - Names and Identifiers
| Name | 4,4'-bis(dimethylamino)thiobenzophenone |
| Synonyms | Thiomichlers ketone 4,4-BIS(DIMETHYLAMINO)THIOBENZOPHENONE Bis[4-(dimethylamino)phenyl] thioketone 4,4-Bis-(dimethylamino)thiobenzophenone 4,4'-BIS(DIMETHYLAMINO)THIOBENZOPHENONE 4,4'-bis(dimethylamino)thiobenzophenone Bis-4-(dimethylamino)phenylmethanethione bis[4-(dimethylamino)phenyl]methanethione 4,4'-Carbonothioylbis(N,N-dimethylbenzenamine) 4,4'-Bis(dimethylamino)[carbonothioylbisbenzene] Thiomichler's Ketone [Sensitive spectrophotometric reagent for Au, Ag, Hg and Pd, use for the determination of residual chlorine] |
| CAS | 1226-46-6 |
| EINECS | 214-962-6 |
| InChI | InChI=1/C17H20N2S/c1-18(2)15-9-5-13(6-10-15)17(20)14-7-11-16(12-8-14)19(3)4/h5-12H,1-4H3 |
bis[4-(dimethylamino)phenyl]methanethione - Physico-chemical Properties
| Molecular Formula | C17H20N2S |
| Molar Mass | 284.42 |
| Density | 1.230 g/cm3 |
| Melting Point | 202-206°C(lit.) |
| Boling Point | 430.0±55.0 °C(Predicted) |
| Flash Point | 213.8°C |
| Solubility | Easily soluble in hot ethanol, benzene and acetic acid, dark blue in hydrochloric acid, dark red in chloroform, insoluble in petroleum ether and water. |
| Vapor Presure | 1.35E-07mmHg at 25°C |
| Appearance | powder to crystal |
| Color | Red to Dark red to Dark purple |
| pKa | 3.05±0.24(Predicted) |
| Storage Condition | Store below +30°C. |
| Refractive Index | 1.652 |
| MDL | MFCD00040477 |
| Use | As a reagent for the determination of tungsten |
bis[4-(dimethylamino)phenyl]methanethione - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/38 - Irritating to eyes and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| UN IDs | 2811 |
| WGK Germany | 3 |
| HS Code | 29309070 |
bis[4-(dimethylamino)phenyl]methanethione - Introduction
Sensitive photometric reagents for the determination of gold, palladium, platinum, mercury and silver. It is also used for the determination of residual chlorine (residual chlorine)
Last Update：2022-10-16 17:12:51
bis[4-(dimethylamino)phenyl]methanethione - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Properties | Thiomichi ketone (C17H20N2S,Mr28 4.12), abbreviated as TMK, is a dark red crystalline fine powder with a melting point of 202 ℃, insoluble in water, but soluble in alcohol and a dark yellow solution. |
| purification | purified thiomie ketone can be recrystallized from hot ethanol, or it can be co-ground with a small amount of chloroform, then filtered, washed and dried with cold ethanol. |
| Use | Used as a reagent for the determination of tungsten Sensitive photometric reagent for the determination of gold, palladium, platinum, mercury and silver. Also used for the determination of residual chlorine (residual chlorine) Photometric reagent for the determination of gold, palladium, platinum, mercury, silver, and copper; used for the determination of residual chlorine |
Last Update：2024-04-09 21:11:58
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