Sodium tetraborate decahydrate
SIGALD/31457 - puriss. p.a., ACS reagent, reag. ISO, buffer substance, ≥99.5%
Synonym: Borax decahydrate; Sodium borate decahydrate
CAS Number: 1303-96-4
Empirical Formula (Hill Notation): B4Na2O7 · 10H2O
Molecular Weight: 381.37
EC Number: 215-540-4
MDL Number: MFCD00149193
Linear Formula: Na2B4O7 · 10H2O
Product Type: Chemical
| agency | reag. ISO |
| anion traces | chloride (Cl-): ≤10 mg/kg |
| phosphate (PO43-): ≤10 mg/kg | |
| sulfate (SO42-): ≤50 mg/kg | |
| assay | ≥99.5% |
| cation traces | As: ≤1 mg/kg |
| Ca: ≤50 mg/kg | |
| Cu: ≤5 mg/kg | |
| Fe: ≤5 mg/kg | |
| Pb: ≤5 mg/kg | |
| density | 1.73 g/mL at 25 °C (lit.) |
| form | powder or crystals |
| grade | ACS reagent |
| puriss. p.a. | |
| InChI | 1S/B4O7.2Na.10H2O/c5-1-7- |
| InChI key | CDMADVZSLOHIFP-UHFFFAOYSA |
| pH | 9.0-9.6 (20 °C, 5%) |
| Quality Level | 200  |
| SMILES string | O.O.O.O.O.O.O.O.O.O.[Na+] |
| Application: | Sodium tetraborate decahydrate may be used in the following studies: • Modified carbazole method for the quantitive determination of hexuronic acids. • Quantitative estimation of aminoglycoside antibiotics (dihydrostreptomycin and streptomycin) by capillary electrophoresis coupled with UV detection. • To compose the buffer along with cholic acid sodium solution (pH 9.2) for micellar electrokinetic chromatographic (MEKC) quantification of pesticides. |
| Symbol |   GHS07,GHS08 |
| Signal word | Danger |
| Hazard statements | H319 - H360FD |
| Precautionary statements | P201 - P202 - P264 - P280 - P305 + P351 + P338 - 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 | ≥99.5% |
| Density | 1.73 g/mL at 25 °C (lit.) |
| UNSPSC | 12352302 |