Selenıum Black 99+ For Analy. Emsure
ürün Kodu : 107714.0050Sorunuz!
107714.0050
Selenium black 99+
| Ürün bilgisi | |||
|---|---|---|---|
| Hill Formula | Se | ||
| HS Code | 2804 90 00 | ||
| EC number | 231-957-4 | ||
| Molar mass | 78.96 g/mol | ||
| EC index number | 034-001-00-2 | ||
| CAS number | 7782-49-2 | ||
| Kimyasal ve fiziksel veri | |||
|---|---|---|---|
| Solubility | (20 °C) slightly soluble | ||
| Melting point | 217 °C | ||
| Molar mass | 78.96 g/mol | ||
| Density | 4.28 g/cm3 (20 °C) | ||
| Bulk density | 1270 kg/m3 | ||
| Boiling point | 685 °C (1013 hPa) | ||
| Vapor pressure | 0.001 hPa (20 °C) | ||
| GHS'e göre güvenlik bilgisi | |||
|---|---|---|---|
| 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. |
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| 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. |
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| Signal Word | Danger | ||
| Hazard Pictogram(s) | |||
| Storage class | 6.1A Combustible substances, toxic | ||
| 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. |
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| Güvenlik bilgisi | |||
|---|---|---|---|
| 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. |
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| 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. |
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| Categories of danger | toxic, dangerous for the environment | ||
| Hazard Symbol |
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| Toksikolojik veri | |||
|---|---|---|---|
| LD 50 oral | LD50 rat 6700 mg/kg | ||
| Spesifikasyonlar | |
|---|---|
| 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 % |