1-Thienyl-4,4,4-trifluoro-1,3-butanedione
thenoyltrifluoroacetone
CAS: 326-91-0
Molecular Formula: C8H5F3O2S
1-Thienyl-4,4,4-trifluoro-1,3-butanedione - Names and Identifiers
1-Thienyl-4,4,4-trifluoro-1,3-butanedione - Physico-chemical Properties
| Molecular Formula | C8H5F3O2S |
| Molar Mass | 222.18 |
| Density | 1.4373 (estimate) |
| Melting Point | 40-44°C(lit.) |
| Boling Point | 96-98°C8mm Hg(lit.) |
| Flash Point | 233°F |
| Water Solubility | INSOLUBLE |
| Solubility | sparingly soluble in water, readily soluble in organic solvents. Distribution ratio between acidic water and benzene is about 40. In alkaline aqueous medium it exists in the enolate form, this being relatively more soluble in water. The equilibrium distribution ratio between benzene and alkaline aqueous medium (about pH 8) is about 1. In alkaline aqueous medium of pH > 9 TTA decomposes to trifluoroacetone and acetylthiophen. |
| Vapor Presure | 43.693mmHg at 25°C |
| Appearance | Yellow to light brown crystals |
| Color | Light yellow or beige to brown |
| Odor | Odorless |
| BRN | 168645 |
| pKa | 5.60±0.23(Predicted) |
| Storage Condition | 2-8°C |
| Stability | Stable for 1 year from date of purchase as supplied. Solutions in DMSO or ethanol may be stored at -20°C for up to 1 month. |
| Sensitive | Easily absorbing moisture |
| Refractive Index | 1.326 |
| MDL | MFCD00005445 |
| Use | For the extraction and separation of zirconium and hafnium and uranium, thorium and the separation of nuclear reaction products |
1-Thienyl-4,4,4-trifluoro-1,3-butanedione - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R22 - Harmful if swallowed |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 10-23 |
| TSCA | T |
| HS Code | 29349990 |
| Hazard Class | IRRITANT |
1-Thienyl-4,4,4-trifluoro-1,3-butanedione - Introduction
Insoluble in water.
Last Update：2022-10-16 17:24:35
1-Thienyl-4,4,4-trifluoro-1,3-butanedione - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Use | Used for extraction and separation of zirconium and hafnium, and separation of uranium, thorium and nuclear reaction products, etc. |
Last Update：2024-04-09 02:00:08
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