1.06310

di-Sodium tetraborate

for analysis (ca. 85% Na₂B₄O₇)

• 동의어(들): di-Sodium tetraborate, Borax
• 실험식(Hill 표기법): B₄Na₂O₇ · nH₂O (n=1.5-2)
• CAS Number: 12267-73-1
• MDL number: MFCD00003193
• UNSPSC 코드: 12352302
• EC 인덱스 번호: 215-540-4
• NACRES: NA.21
• solubility: water: Ca. 25 g/L at 20 °C (68 °F)

속성

• Grade: for analytical purposes
• Quality Level: 100
• vapor pressure: 20-°C ( 68 °F)
• 분석: ≥85.0% (acidimetric)
• 양식: solid
• pH: 9-10 (20 °C, 25 g/L in H₂O)
• bp: 1575 °C/1013 hPa (anhydrous)
• mp: 742 °C (anhydrous)
• solubility: water: Ca. 25 g/L at 20 °C (68 °F)
• density: 2.35 g/cm³ at 26 °C
• 벌크 밀도: 680 kg/m³
• 음이온 미량물: chloride (Cl^-): ≤0.002%; phosphate (PO₄^3-): ≤0.002%; sulfate (SO₄^2-): ≤0.01%
• 양이온 미량물: Ca: ≤0.01%; Fe: ≤0.001%; heavy metals (as Pb): ≤0.002%
• 저장 온도: 2-30°C

설명

애플리케이션

• 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).

분석 메모

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 %

안전성 정보

• 픽토그램: GHS07,GHS08
• 신호어: Danger
• 유해 및 위험 성명서: H319 - H360FD
• 예방조치 성명서: P202 - P264 - P280 - P305 + P351 + P338 - P308 + P313 - P337 + P313
• Hazard Classifications: Eye Irrit. 2 - Repr. 1B
• Storage Class Code: 6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• WGK: WGK 1
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable