| Specifications | |
|---|---|
| Identity | passes test |
| Assay (gravimetrically) | ≥ 99.0 % |
| Cu (Copper) | ≤ 0.005 % |
| Fe (Iron) | ≤ 0.05 % |
| Pb (Lead) | ≤ 0.05 % |
| Residue on ignition | ≤ 0.5 % |
| Particle size (> 150 µm) | ≤ 5 % |
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Key Spec Table
| CAS # | EC Number | Hill Formula | Molar Mass |
|---|---|---|---|
| 7782-49-2 | 231-957-4 | Se | 78.96 g/mol |
| Description | |
|---|---|
| Catalogue Number | 107714 |
| Product Information | |
|---|---|
| CAS number | 7782-49-2 |
| EC index number | 034-001-00-2 |
| EC number | 231-957-4 |
| Hill Formula | Se |
| Molar Mass | 78.96 g/mol |
| HS Code | 2804 90 00 |
| Applications | |
|---|---|
| Application | Selenium black 99+ for analysis EMSURE®. CAS 7782-49-2, molar mass 78.96 g/mol. MSDS and product information below. |
| Physicochemical Information | |
|---|---|
| Boiling point | 685 °C (1013 hPa) |
| Melting Point | 217 °C |
| Vapor pressure | 0.001 hPa (20 °C) |
| Bulk density | 1270 kg/m3 |
| Toxicological Information | |
|---|---|
| LD 50 oral | LD50 Rat 6700 mg/kg |
| Safety Information according to GHS | |
|---|---|
| Hazard Pictogram(s) |   |
| Hazard Statement(s) | H331: Toxic if inhaled. H301: Toxic if swallowed. H373: May cause damage to organs through prolonged or repeated exposure. H413: May cause long lasting harmful effects to aquatic life. |
| Precautionary Statement(s) | P273: Avoid release to the environment. P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician. |
| Storage class | 6.1C Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects |
| WGK | WGK 2 water endangering |
| Disposal | 17 Inorganic selenium compounds are toxic and must be handled with caution. Container E. Elemental selenium can be recovered by first oxidizing the salts in aqueous solution with concentrated Nitric acid (Cat.No. 100443). The addition of Sodium hydrogen sulfite solution (Item No. 806356) then causes elemental selenium to precipitate out. Aqueous phase: Container D. |
| Safety Information | |
|---|---|
| Hazard Symbols |  Toxic |
| Categories of danger | toxic, dangerous for the environment |
| R Phrase | R 23/25-33-53 Toxic by inhalation and if swallowed.Danger of cumulative effects.May cause long-term adverse effects in the aquatic environment. |
| S Phrase | S 20/21-28-45-61 When using do not eat, drink or smoke.After contact with skin, wash immediately with plenty of soap and water.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).Avoid release to the environment. Refer to special instructions/ Safety data sheets. |
| Storage and Shipping Information | |
|---|---|
| Storage | Storage temperature: no restrictions. |
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