TETRAMETHYLUREA
1,1,3,3-Tetramethylurea
CAS: 632-22-4
Molecular Formula: C5H12N2O
TETRAMETHYLUREA - Names and Identifiers
| Name | 1,1,3,3-Tetramethylurea |
| Synonyms | Temur ((CH3)2N)2CO TETRAMETHYLUREA tetramethyl-ure Tetramethyluree Tetramethylurea Tetramethylharnstoff 1,1,3,3-tetramethyl-ure 1,1,3,3-Tetramethylurea N,N,N',N'-TETRAMETHYLUREA |
| CAS | 632-22-4 |
| EINECS | 211-173-9 |
| InChI | InChI=1/C5H12N2O/c1-6(2)5(8)7(3)4/h1-4H3 |
| InChIKey | AVQQQNCBBIEMEU-UHFFFAOYSA-N |
TETRAMETHYLUREA - Physico-chemical Properties
| Molecular Formula | C5H12N2O |
| Molar Mass | 116.16 |
| Density | 0.968g/mLat 20°C(lit.) |
| Melting Point | −1°C(lit.) |
| Boling Point | 177°C(lit.) |
| Flash Point | 150°F |
| Water Solubility | H2O: 1 M at 20 °C, miscible |
| Solubility | Miscible with water, petroleum ether and common solvents. |
| Appearance | Liquid |
| Color | Clear colorless to pale yellow |
| Merck | 14,9230 |
| BRN | 773898 |
| pKa | 2.0(at 25℃) |
| PH | 5-8 (25℃, 1M in H2O) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Refractive Index | n20/D 1.451(lit.) |
| Use | 1) As intermediates in pesticides. 2) As a high-grade solvent, in dyestuff and other industries. 3) As intermediates in surfactant. 4) In peptides and other products produced by the bio-chemical industry. |
TETRAMETHYLUREA - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R61 - May cause harm to the unborn child |
| Safety Description | S53 - Avoid exposure - obtain special instructions before use. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | NA 1993 / PGIII |
| WGK Germany | 3 |
| RTECS | YU2625000 |
| FLUKA BRAND F CODES | 3-10 |
| TSCA | Yes |
| HS Code | 29241900 |
| Toxicity | LD50 i.v. in rats: 1.1 g/kg (Lüttringhaus, Dirksen) |
TETRAMETHYLUREA - Reference Information
| relative polarity | 5 |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | for the synthesis of pesticides, synthetic dyes, alkali metals. |
| category | flammable liquid |
| toxicity grade | poisoning |
| Acute toxicity | oral-mouse LD50: 2920 mg/kg |
| flammability hazard characteristics | flammable in open flame, high temperature, strong oxidant; combustion emission toxic nitrogen oxide smoke |
| storage and transportation characteristics | The package is complete, light, light; The warehouse is ventilated, away from open flame, high temperature, separate from oxidant |
| fire extinguishing agent | foam, carbon dioxide, dry powder, 1211, sand |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 20:49:11
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