Boric anhydride
ALDRICH/202851 - 99.999% trace metals basis
Synonym: Boron trioxide
CAS Number: 1303-86-2
Empirical Formula (Hill Notation): B2O3
Molecular Weight: 69.62
EC Number: 215-125-8
MDL Number: MFCD00011315
Linear Formula: B2O3
Product Type: Chemical
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This image depicts SKU: 202851-5G
This image depicts SKU: 202851-5G
| assay | 99.999% trace metals basis |
| density | 2.46 g/mL at 25 °C (lit.) |
| form | crystals or chunks |
| InChI | 1S/B2O3/c3-1-5-2-4 |
| InChI key | JKWMSGQKBLHBQQ-UHFFFAOYSA |
| mp | 450 °C (lit.) |
| Quality Level | 100  |
| reaction suitability | reagent type: catalyst core: boron |
| SMILES string | O=BOB=O |
| solubility | ethanol: soluble at 20 °C |
| vapor density | >1 (vs air) |
| Application: | Reducing boron anhydride in the presence of sodium yields amorphous boron. Whereas reducing in the presence of aluminum at high temperatures affords crystalline boron. 1 |
| General description: | Anhydride can be obtained by heating boric acid at temperatures higher than 160oC.1 |
| Packaging: | 5 g in poly bottle |
| Packaging: | Packaged in poly bottles |
| Symbol |  GHS08 |
| Signal word | Danger |
| Hazard statements | H360D |
| Precautionary statements | P201 - P308 + 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 | 99.999% trace metals basis |
| mp | 450 °C (lit.) |
| Density | 2.46 g/mL at 25 °C (lit.) |
| UNSPSC | 12352300 |