1.06310

di-Sodium tetraborate

for analysis (ca. 85% Na₂B₄O₇)

• 同義詞: di-Sodium tetraborate, Borax
• 經驗公式（希爾表示法）: B₄Na₂O₇ · nH₂O (n=1.5-2)
• CAS號碼: 12267-73-1
• MDL號碼: MFCD00003193
• 分類程式碼代碼: 12352302
• 酶委員會索引編號: 215-540-4
• NACRES: NA.21

屬性

• 等級: for analytical purposes
• 品質等級: 100
• 蒸汽壓力: 20-°C ( 68 °F)
• 化驗: ≥85.0% (acidimetric)
• 形狀: solid
• pH值: 9-10 (20 °C, 25 g/L in H₂O)
• bp: 1575 °C/1013 hPa (anhydrous)
• mp: 742 °C (anhydrous)
• 溶解度: water: Ca. 25 g/L at 20 °C (68 °F)
• 密度: 2.35 g/cm³ at 26 °C
• 體積密度: 680 kg/m³
• 負離子痕跡: chloride (Cl^-): ≤0.002%; phosphate (PO₄^3-): ≤0.002%; sulfate (SO₄^2-): ≤0.01%
• 正離子痕跡: Ca: ≤0.01%; Fe: ≤0.001%; heavy metals (as Pb): ≤0.002%
• 儲存溫度: 2-30°C

描述

應用

• 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).

分析報告

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 %

安全資訊

• 象形圖: GHS07,GHS08
• 訊號詞: Danger
• 危險聲明: H319 - H360FD
• 防範說明: P202 - P264 - P280 - P305 + P351 + P338 - P308 + P313 - P337 + P313
• 危險分類: Eye Irrit. 2 - Repr. 1B
• 儲存類別代碼: 6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• 水污染物質分類（WGK）: WGK 1
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable