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) |
| Application: | Boric acid can be used to study molecular biology, DNA and RNA purification, biological buffers and molecular biology reagents. Boric acid has been used to test the toxic effects of boron on growth and antioxidant system parameters of maize (Zea mays L.) roots. Boric acid has also been used to study the effect of time period after boric acid injection on (10)B absorption in different regions of adult male rat′s brain. |
| Other Notes: | Running buffer component with methylmercuric hydroxide gels; Buffer component in DNA digest analysis with capillary electrophoresis |
| Symbol |  GHS08 |
| Signal word | Danger |
| Hazard statements | H360FD |
| Precautionary statements | P201 - P202 - P280 - P308 + P313 - P405 - P501 |
| Hazard Codes | T |
| Risk Statements | 60-61 |
| Safety Statements | 53-45 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Purity | ≥99.5% (T) |
| mp | 160 °C (dec.) (lit.) |
| Density | 1.49 g/cm3 at 23 °C |
| UNSPSC | 12161700 |