Sodium tetraborate decahydrate
SIGALD/S9640 - ACS reagent, ≥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
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: S9640-25G
This image depicts SKU: S9640-25G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: S9640-500G
This image depicts SKU: S9640-500G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: S9640-2.5KG
This image depicts SKU: S9640-2.5KG
| agency | suitable for SM 4500 - NH3 |
| anion traces | chloride (Cl-): ≤0.001% |
| phosphate (PO43-): ≤0.001% | |
| sulfate (SO42-): ≤0.005% | |
| assay | ≥99.5% |
| cation traces | Ca: ≤0.005% |
| Fe: ≤5 ppm | |
| heavy metals (as Pb): ≤0.001% | |
| density | 1.73 g/mL at 25 °C (lit.) |
| form | powder or crystals |
| grade | ACS reagent |
| impurities | ≤0.005% Insoluble matter |
| InChI | 1S/B4O7.2Na.10H2O/c5-1-7- |
| InChI key | CDMADVZSLOHIFP-UHFFFAOYSA |
| pH | 9.15-9.20 (25 °C, 0.01 M in solution) |
| Quality Level | 200  |
| SMILES string | O.O.O.O.O.O.O.O.O.O.[Na+] |
| vapor pressure | 0.213 hPa ( 20 °C) |
| Application: | Sodium tetraborate decahydrate can be used as a catalyst in the:• Regioselective thiolysis of 1,2-epoxides by using thiols to synthesize β-hydroxy sulfides. • Hetero-Michael addition of thiols with electron-deficient olefins to synthesize corresponding β-adducts. • Solvent-free Biginelli reaction to synthesize 3,4-dihydropyrimidin-2(1H)-ones. It can also be used as an additive to prepare polypyrrole-borax composites with high dielectric properties. |
| General description: | Sodium tetraborate decahydrate is a naturally occurring material used as a catalyst or additive for many organic transformations such as Nef reaction, Knoevenagel condensation, substitution, addition, selective methylation of vicinal diols, and desilylation of trimethylsilyl alkynones. |
| Packaging: | 2.5 kg in poly drum |
| Packaging: | 25, 500 g in poly bottle |
| Packaging: | 4×2.5 kg in poly bottle |
| Symbol |   GHS07,GHS08 |
| Signal word | Danger |
| Hazard statements | H319 - H360FD |
| Precautionary statements | P202 - P264 - P280 - P305 + P351 + P338 - P308 + P313 - P337 + 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 | 12352300 |