1.06310

di-Sodium tetraborate

for analysis (ca. 85% Na₂B₄O₇)

• 別名: di-Sodium tetraborate, Borax
• 実験式（ヒル表記法）: B₄Na₂O₇ · nH₂O (n=1.5-2)
• CAS番号: 12267-73-1
• UNSPSCコード: 12352302
• EC Index Number: 215-540-4
• NACRES: NA.21

特性

• 蒸気圧: 20-°C ( 68 °F)
• 品質水準: 100
• アッセイ: ≥85.0% (acidimetric)
• 形状: solid
• pH: 9-10 (20 °C, 25 g/L in H₂O)
• bp: 1575 °C/1013 hPa (anhydrous)
• mp: 742 °C (anhydrous)
• 溶解性: water: Ca. 25 g/L at 20 °C (68 °F)
• 密度: 2.35 g/cm³ at 26 °C
• かさ密度: 680 kg/m³
• 微量陰イオン: chloride (Cl^-): ≤0.002%; phosphate (PO₄^3-): ≤0.002%; sulfate (SO₄^2-): ≤0.01%
• 微量陽イオン: Ca: ≤0.01%; Fe: ≤0.001%; heavy metals (as Pb): ≤0.002%
• 保管温度: 2-30°C

詳細

アプリケーション

• Micellar electrokinetic chromatography for separation of a mixture of coptis alkaloids, scute flavonoids, and rhubarb anthraquinones and bianthrones.: This study by Chang and Sun investigates the use of micellar electrokinetic chromatography (MEKC) to separate complex mixtures of bioactive compounds. The research highlights the effectiveness of di-Sodium tetraborate in optimizing the separation process, showcasing its utility in analytical chemistry for the precise analysis of natural products (Chang et al., 2006).

アナリシスノート

Assay (acidimetric): ≥ 85.0 %
Chloride (Cl): ≤ 0.002 %
Phosphate (PO₄): ≤ 0.002 %
Sulfate (SO₄): ≤ 0.01 %
Heavy metals (as Pb): ≤ 0.002 %
Ca (Calcium): ≤ 0.01 %
Fe (Iron): ≤ 0.001 %

安全性情報

• ピクトグラム: GHS07,GHS08
• シグナルワード: Danger
• 危険有害性情報: H319 - H360FD
• 注意書き: P202 - P264 - P280 - P305 + P351 + P338 - P308 + P313 - P337 + P313
• 危険有害性の分類: Eye Irrit. 2 - Repr. 1B
• 保管分類コード: 6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• WGK: WGK 1
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable