Description
Thiourea Chemical Properties
| Melting point | 170-176 °C (lit.) |
| Boiling point | 263.89°C (estimate) |
| density | 1.405 |
| refractive index | 1.5300 (estimate) |
| storage temp. | Store below +30°C. |
| solubility | water: soluble137g/L at 20°C |
| form | Crystals |
| pka | -1.0(at 25℃) |
| Specific Gravity | 1.406 |
| color | White to almost white |
| Odor | Odorless |
| PH Range | 5 – 7 |
| PH | 6-8 (50g/l, H2O, 20℃) |
| Water Solubility | 13.6 g/100 mL (20 ºC) |
| Merck | 14,9367 |
| BRN | 605327 |
| Stability: | Stable. Incompatible with strong acids, strong bases, strong oxidizing agents, metallic salts, proteins, hydrocarbons. May react violently with acrolein. |
| InChIKey | UMGDCJDMYOKAJW-UHFFFAOYSA-N |
| LogP | -1.050 (est) |
| CAS DataBase Reference | 62-56-6(CAS DataBase Reference) |
| IARC | 3 (Vol. Sup 7, 79) 2001 |
| NIST Chemistry Reference | Thiourea(62-56-6) |
| EPA Substance Registry System | Thiourea (62-56-6) |
Safety Information
| Hazard Codes | Xn,N,Xi |
| Risk Statements | 22-40-51/53-63-43-38 |
| Safety Statements | 36/37-61 |
| RIDADR | UN 2811 6.1/PG 3 |
| WGK Germany | 2 |
| RTECS | YU2800000 |
| Autoignition Temperature | 440 °C Dust |
| TSCA | Yes |
| HazardClass | 6.1 |
| PackingGroup | III |
| HS Code | 29309070 |
| Hazardous Substances Data | 62-56-6(Hazardous Substances Data) |
| Toxicity | LD50 orally in wild Norway rats: 1830 mg/kg (Dieke) |
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