Sodium selenate decahydrate
| 製品名 | Sodium selenate decahydrate |
|---|---|
| CAS番号 | 10102-23-5 |
| 分子式 | Na2SeO4·10H2O |
| 分子量 | 369.11 g/mol |
| 外観 | 白色の結晶性粉末 |
| Assay (as Na2SeO4·10H2O) | ≥ 99.0% |
| Selenium Content | 21.4% (theoretical) |
| 溶解度 | Very soluble in water; insoluble in alcohol |
| 乾燥減量 | ≤ 0.5% |
| 重金属 | 10 ppm以下 |
| パッケージ | 25 kg fiber drum with inner polyethylene liner |
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Synonyms: Sodium selenate decahydrate, Disodium selenate decahydrate, Sodium selenium oxide decahydrate, Selenic acid disodium salt decahydrate, Na2SeO4·10H2O
Sodium selenate decahydrate is the fully hydrated, crystalline form of the inorganic selenium salt Na2SeO4·10H2O. It is produced through the controlled oxidation of selenium dioxide or elemental selenium in the presence of sodium hydroxide, followed by crystallization to yield a high-purity, free-flowing solid. The decahydrate form is the most common commercial grade, offering excellent water solubility and consistent selenium content for precise formulation.
As a source of hexavalent selenium, this compound plays a critical role in both pharmaceutical and nutritional applications. It is widely used in total parenteral nutrition (TPN) solutions, as a selenium supplement in animal feed and human nutraceuticals, and as a reagent in biochemical research. Its high solubility and stability make it a preferred choice for liquid formulations where accurate dosing of selenium is essential.
| パラメータ | 仕様 |
|---|---|
| Assay (as Na2SeO4·10H2O) | ≥ 99.0% |
| Selenium (Se) content | 21.0% – 21.5% |
| 外観 | 白色の結晶性粉末 |
| 溶解度 | Very soluble in water |
| Loss on drying | ≤ 0.5% |
| Heavy metals | 10 ppm以下 |
| Arsenic | ≤ 2 ppm |