Di-Sodium Tetraborate Decahydrate (Borax) 1kg
EMPROVE® ESSENTIAL Ph Eur,BP,JP,NF
Manufacturer: Merck
Catalog ID: 106303.1000
Stock: Out of Stock
Description
| Catalogue Number | 106303 |
| 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 | Ph Eur,BP,JP,NF |
| Hill Formula | B₄Na₂O₇*10H₂O |
| Chemical formula | Na₂B₄O₇*10 H₂O |
| Molar Mass | 381.32 g/mol |
| HS Code | 2840 19 90 |
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) | 99.0 - 103.0 % |
| Identity | passes test |
| Appearance of solution | passes test |
| pH-value (4 %; water) | 9.2 - 9.5 |
| pH-value (5 %; water) | 9.1 - 9.6 |
| carbonate, bicarbonate | passes test |
| Sulfate (SO₄) | ≤ 0.0050 % |
| Heavy metals (as Pb) | ≤ 0.0020 % |
| Al (Aluminium) | ≤ 0.0001 % |
| As (Arsenic) | ≤ 0.0005 % |
| Ca (Calcium) | ≤ 0.0100 % |
| Fe (Iron) | ≤ 0.0005 % |
| NH₄ (Ammonium) | ≤ 0.0010 % |
| Residual solvents (ICH Q3C) | excluded by manufacturing process |
| Elemental impurity specifications have been set considering ICH Q3D (Guideline for Elemental Impurities). Class 1-3 elements are not likely to be present above the ICH Q3D option 1 limit, unless specified and indicated (*). | |
| Corresponds to Ph Eur, BP, JP, NF |
