71996

Borax Anhydrous

puriss. p.a., anhydrous, ≥98.0% (T)

• Synonym(s): Sodium tetraborate
• Linear Formula: Na₂B₄O₇
• CAS Number: 1330-43-4
• Molecular Weight: 201.22
• EC Number: 215-540-4
• MDL number: MFCD00081185
• UNSPSC Code: 12352302
• PubChem Substance ID: 329763685
• NACRES: NA.22

Properties

• Quality Level: 200
• grade: puriss. p.a.
• Assay: ≥98.0% (T)
• form: crystals
• anion traces: chloride (Cl^-): ≤10 mg/kg; phosphate (PO₄^3-): ≤20 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• cation traces: 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
• application(s): 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
• InChI key: UQGFMSUEHSUPRD-UHFFFAOYSA-N

Description

Application

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.

Other Notes

Reagent for the decomposition of oxides and silicates by fusion

Legal Information

Safety Information

• Pictograms: GHS07,GHS08
• Signal Word: Danger
• Hazard Statements: H319 - H360FD
• Precautionary Statements: 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
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves