CAS Number:1303‑96‑4
Synonyms:Borax decahydrate; Sodium tetraborate decahydrate; Disodium tetraborate decahydrate; Borax 10 Mol
Chemical Formula:Na₂B₄O₇·10H₂O
Molecular Weight:228.29 g/mol
Product Introduction
Borax decahydrate is a white crystalline salt derived from sodium borate ores. It’s used across industrial, household, and laboratory settings—as a cleaning agent, water softener, flux in metallurgy, crosslinker in cosmetics, flame retardant, pH buffer, and more
| Property | Value |
|---|---|
| Appearance | White or colorless crystalline solid |
| Purity | ≥ 99.5 % (ReagentPlus®) |
| Molecular Weight | 381.37 g/mol |
| Density | ~1.71–1.73 g/cm³ |
| Melting Point | Onset of water loss ~62 °C; decomposes ~75 °C |
| Solubility in Water | ~31.7–39 g/L @ 20 °C |
| pH (4% solution) | ~9.0–9.6 |
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