71996

Natriumtetraborat

puriss. p.a., anhydrous, ≥98.0% (T)

• Synonym(e): Borax
• Lineare Formel: Na₂B₄O₇
• CAS-Nummer: 1330-43-4
• Molekulargewicht: 201.22
• EG-Nummer: 215-540-4
• MDL-Nummer: MFCD00081185
• UNSPSC-Code: 12352302
• PubChem Substanz-ID: 329763685
• NACRES: NA.22

Eigenschaften

• Qualitätsniveau: 200
• Qualität: puriss. p.a.
• Assay: ≥98.0% (T)
• Form: crystals
• Anionenspuren: chloride (Cl^-): ≤10 mg/kg; phosphate (PO₄^3-): ≤20 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• Kationenspuren: Ag: ≤5 mg/kg; Al: ≤5 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤50 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤10 mg/kg; K: ≤50 mg/kg; Li: ≤5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Sr: ≤5 mg/kg; Tl: ≤5 mg/kg; Zn: ≤5 mg/kg
• Anwendung(en): forensics and toxicology
• SMILES String: [Na+].[Na+].[O-]B1Ob2ob([O-])ob(O1)o2
• InChI: 1S/B4O7.2Na/c5-1-7-3-9-2(6)10-4(8-1)11-3;;/q-2;2*+1
• InChIKey: UQGFMSUEHSUPRD-UHFFFAOYSA-N

Beschreibung

Anwendung

Borax Anhydrous can be used as a boron source to synthesize phase pure ZrB₂ powder via a novel green silicothermic reduction method using ZrO₂ and Si as raw materials. It is also used to prepare sodium borohydride, nano-sized titanium diboride, and alkali-activated borosilicate inorganic polymers.

Sonstige Hinweise

Reagent for the decomposition of oxides and silicates by fusion

Rechtliche Hinweise

Sicherheitshinweise

• Piktogramme: GHS08,GHS07
• Signalwort: Danger
• H-Sätze: H319,H360FD
• P-Sätze: P202 - P264 - P280 - P305 + P351 + P338 - P308 + P313 - P337 + P313
• Gefahreneinstufungen: Eye Irrit. 2 - Repr. 1B
• Lagerklassenschlüssel: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• WGK: WGK 1
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• Persönliche Schutzausrüstung: Eyeshields, Gloves, type P3 (EN 143) respirator cartridges