Boric Acid
General description
Boric acid is a weak monobasic Lewis acid (electron pair acceptor), which finds application in the areas of glass making, fire retardant, lubrication agent, buffer, neutron absorber, and adjuvant/excipient in pharmaceutical formulations.
Application
Boric acid can be used as:
A catalyst to synthesize poly(δ-valerolactone) via bulk-ring opening polymerization.
A ligand to synthesize metal-organic frameworks.
A reagent in the preparation of borate buffer.
A crosslinker to electrospun dextran nanofibers.
| Linear Formula | H3BO3 |
| CAS Number | 10043-35-3 |
| Molecular Weight | 61.83 |
| Melting point | 160 °C (dec.) (lit.) |
| Boiling point | 219-220 °C (9.7513 mmHg) |
| Density | 1.440 g/cm3 |
| Storage temp | Store at +5°C to +30°C. |
| Item | Index (First grade) | Index (Second grade) |
| Boric acid(%) | ≥99.5% | ≥96.5% |
| Water insolubles(%) | ≤0.05% | ≤0.15% |
| Sulfate(SO4)(%) | ≤0.10% | ≤0.40% |
| Chloride(CL)(%) | ≤0.01% | ≤0.05% |
| Iron(Fe)(%) | ≤0.003% | ≤0.005% |