Merck 106306 di-Sodium tetraborate anhydrous for analysis 250 gr
| Merck 106306 di-Sodium tetraborate anhydrous for analysis 250 gr | |
|---|---|
| Catalogue Number | 106306 |
| Synonyms | Borax |
| Description | di-Sodium tetraborate |
| Product Information | |
|---|---|
| CAS number | 1330-43-4 |
| EC index number | 005-011-00-4 |
| EC number | 215-540-4 |
| Hill Formula | B₄Na₂O₇ |
| Chemical formula | Na₂B₄O₇ |
| Molar Mass | 201.22 g/mol |
| HS Code | 2840 11 00 |
| Quality Level | MQ100 |
| Applications | |
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| Application | di-Sodium tetraborate anhydrous for analysis. CAS 1330-43-4, chemical formula Na₂B₄O₇. |
| Physicochemical Information | |
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| Density | 2.367 g/cm3 (20 °C) |
| Melting Point | 741 °C |
| pH value | 9.2 (25 g/l, H₂O, 20 °C) |
| Vapor pressure | 7.3 hPa (1200 °C) |
| Bulk density | 700 kg/m3 |
| Solubility | 25.6 g/l |
| Toxicological Information | |
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| LD 50 dermal | LD50 Rabbit > 2000 mg/kg |
| Safety Information | |
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| Categories of danger | toxic for reproduction |
| Storage and Shipping Information | |
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| Storage | Store at +2 °C to +30 °C. |
| Specifications | |
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| Assay (acidimetric) | ≥ 98.0 % |
| Chloride (Cl) | ≤ 0.001 % |
| Phosphate (PO₄) | ≤ 0.002 % |
| Sulfate (SO₄) | ≤ 0.005 % |
| Heavy metals (as Pb) | ≤ 0.002 % |
| Ca (Calcium) | ≤ 0.005 % |
| Fe (Iron) | ≤ 0.001 % |