Boric acid
SIGMA/15663 - BioUltra, for molecular biology, ≥99.5% (T)
CAS Number: 10043-35-3
Empirical Formula (Hill Notation): H3BO3
Molecular Weight: 61.83
EC Number: 233-139-2
MDL Number: MFCD00011337
Linear Formula: H3BO3
Product Type: Chemical
| λ | 1 M in H2O |
| anion traces | chloride (Cl-): ≤5 mg/kg |
| phosphate (PO43-): ≤5 mg/kg | |
| sulfate (SO42-): ≤5 mg/kg | |
| assay | ≥99.5% (T) |
| cation traces | Al: ≤5 mg/kg |
| As: ≤0.5 mg/kg | |
| Ba: ≤5 mg/kg | |
| Bi: ≤5 mg/kg | |
| Ca: ≤10 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 | |
| Na: ≤50 mg/kg | |
| Ni: ≤5 mg/kg | |
| Pb: ≤5 mg/kg | |
| Sr: ≤5 mg/kg | |
| Zn: ≤5 mg/kg | |
| density | 1.49 g/cm3 at 23 °C |
| form | powder or crystals |
| grade | for molecular biology |
| impurities | DNases, none detected |
| insoluble matter, passes filter test | |
| phosphatases, none detected | |
| proteases, none detected | |
| RNases, none detected | |
| <0.05% non-volatile substances in MeOH/HCl | |
| InChI | 1S/BH3O3/c2-1(3)4/h2-4H |
| InChI key | KGBXLFKZBHKPEV-UHFFFAOYSA |
| loss | ≤0.5% loss on drying, 20 °C (HV) |
| mp | 160 °C (dec.) (lit.) |
| pH | 3.6-4.4 (25 °C, saturated solution in H2O) |
| product line | BioUltra |
| Quality Level | 200  |
| SMILES string | OB(O)O |
| solubility | H2O: 1 M, clear, colorless (hot) |
| technique(s) | DNA purification: suitable |
| RNA purification: suitable | |
| UV absorption | λ: 260 nm Amax: 0.015 |
| λ: 280 nm Amax: 0.010 | |
| vapor pressure | 2.6 mmHg ( 20 °C) |
