Di-Sodium Tetraborate Decahydrate GR 500Grm
di-Sodium tetraborate decahydrate for analysis ACS,ISO,Reag. Ph Eur. CAS 1303-96-4, chemical formula Na₂B₄O₇*10 H₂O.
Manufacturer: Merck
Catalog ID: 106308.0500
Stock: In Stock
Description
| Catalogue Number | 106308 |
| Synonyms | Borax, Sodium biborate decahydrate, Sodium borate decahydrate |
| Description | di-Sodium tetraborate decahydrate |
Product Information
| CAS number | 1303-96-4 |
| EC index number | 005-011-01-1 |
| EC number | 215-540-4 |
| Grade | ACS,ISO,Reag. Ph Eur |
| Hill Formula | B₄Na₂O₇*10H₂O |
| Chemical formula | Na₂B₄O₇*10 H₂O |
| Molar Mass | 381.32 g/mol |
| HS Code | 2840 19 90 |
Applications
| Application | di-Sodium tetraborate decahydrate for analysis ACS,ISO,Reag. Ph Eur. CAS 1303-96-4, chemical formula Na₂B₄O₇*10 H₂O. |
Physicochemical Information
| Density | 1.72 g/cm3 (20 °C) |
| Melting Point | 75 °C Elimination of water of crystallisation |
| pH value | 9.2 (47 g/l, H₂O, 20 °C) |
| Vapor pressure | 0.213 hPa (20 °C) |
| Bulk density | 750 kg/m3 |
| Solubility | 49.74 g/l |
Toxicological Information
| LD 50 oral | LD50 Rat 2660 mg/kg |
| LD 50 dermal | LD50 Rabbit > 2000 mg/kg |
Storage and Shipping Information
| Storage | Store at +5°C to +30°C. |
Specifications
| Assay (acidimetric) | 99.5 - 103.0 % |
| Identity | passes test |
| Appearance of solution | passes test |
| Insoluble matter | ≤ 0.005 % |
| pH-value (0.01 M Solution, 25 °C) | 9.15 - 9.20 |
| pH-value (4 %, water) | 9.0 - 9.6 |
| Chloride (Cl) | ≤ 0.0007 % |
| Phosphate (PO₄) | ≤ 0.001 % |
| Sulfate (SO₄) | ≤ 0.005 % |
| Heavy metals (as Pb) | ≤ 0.001 % |
| As (Arsenic) | ≤ 0.0005 % |
| Ca (Calcium) | ≤ 0.005 % |
| Cu (Copper) | ≤ 0.0005 % |
| Fe (Iron) | ≤ 0.0005 % |
| NH₄ (Ammonium) | ≤ 0.001 % |
| Pb (Lead) | ≤ 0.0005 % |
| Corresponds to ACS,ISO,Reag. Ph Eur |
