Borax Anhydrous
SIAL/71997 - BioUltra, anhydrous, ≥99%
Synonym: Sodium tetraborate
CAS Number: 1330-43-4
Empirical Formula (Hill Notation): B4Na2O7
Molecular Weight: 201.22
EC Number: 215-540-4
MDL Number: MFCD00081185
Linear Formula: Na2B4O7
Product Type: Chemical
| λ | 0.1 M in H2O |
| anion traces | chloride (Cl-): ≤10 mg/kg |
| phosphate (PO43-): ≤20 mg/kg | |
| sulfate (SO42-): ≤50 mg/kg | |
| assay | ≥99% |
| cation traces | Al: ≤5 mg/kg |
| As: ≤0.5 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: ≤5 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 | |
| Zn: ≤5 mg/kg | |
| form | crystals |
| grade | reagent grade |
| impurities | insoluble matter, passes filter test |
| InChI | 1S/B4O7.2Na/c5-1-7-3-9-2( |
| InChI key | UQGFMSUEHSUPRD-UHFFFAOYSA |
| loss | ≤1% loss on drying, 20 °C (HV) |
| pH | 9.0-10.5 (25 °C, 0.1 M in H2O) |
| product line | BioUltra |
| Quality Level | 200  |
| SMILES string | [Na+].[Na+].[O-]B1Ob2ob([ |
| solubility | H2O: 0.1 M at 20 °C, clear, colorless |
| UV absorption | λ: 260 nm Amax: ≤0.020 |
| λ: 280 nm Amax: ≤0.015 |
| Symbol |   GHS07,GHS08 |
| Signal word | Danger |
| Hazard statements | H319 - H360FD |
| Precautionary statements | P202 - P264 - P280 - P305 + P351 + P338 - P308 + P313 - P337 + P313 |
| Hazard Codes | T |
| Risk Statements | 60-61 |
| Safety Statements | 53-45 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99% |
| UNSPSC | 12352302 |