Thiourea AR 99% 250g VWR
28615.231-250g
Specification 28615
Thiourea 99.0% analytical reagent
|
Warning |
Synonyms: Thiocarbamide , Sulfourea
| Formula: NH₂CSNH₂ MW: 76.12 g/mol Melting Pt: 174…177 °C Density: 1.435 g/cm³ (20 °C) Storage Temperature: Ambient |
CAS Number: 62-56-6 UN: 3077 DG: 9, Packing group III (low risk) |
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Specification Test Results
| Assay (Iodometric) | Min. 99.0 % |
| Appearance of solution (50 g/l; water) | Colourless to (almost) clear |
| IR Spectrum | Passes test |
| Sensitivity to bis muth | Passes test |
| Melting point | 174 - 178 °C |
| Ignition residue (SO4) (600°C) | Max. 0.1 % |
| Loss on drying (105°C) | Max. 0.5 % |
| Fe | Max. 5 ppm |
Availability: 20 in stock
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