Boric Acid GR 1kg
for analysis EMSURE® ACS,ISO,Reag. Ph Eur
Manufacturer: Merck
Catalog ID: 100165.1000
Stock: In Stock
Description
| Catalogue Number | 100165 |
| Synonyms | Orthoboric acid, Trihydroxidoboron |
Product Information
| CAS number | 10043-35-3 |
| EC index number | 005-007-00-2 |
| EC number | 233-139-2 |
| Grade | ACS,ISO,Reag. Ph Eur |
| Hill Formula | BH₃O₃ |
| Chemical formula | H₃BO₃ |
| Molar Mass | 61.83 g/mol |
| HS Code | 2810 00 90 |
Physicochemical Information
| Density | 1.489 g/cm3 (23 °C) |
| pH value | 3.8 - 4.8 (33 g/l, H₂O, 20 °C) |
| Vapor pressure | <1 Pa (25 °C) |
| Bulk density | 400 - 600 kg/m3 |
| Solubility | 49.2 g/l |
Toxicological Information
| LD 50 oral | LD50 Rat 2660 mg/kg |
| LD 50 dermal | LD50 Rat > 2000 mg/kg |
Storage and Shipping Information
| Storage | Store at +5°C to +30°C. |
Specifications
| Assay (alkalimetric) | 99.5 - 100.5 % |
| Identity | passes test |
| Appearance of solution | passes test |
| pH-value (3.3 %, water) | 3.8 - 4.8 |
| Chloride (Cl) | ≤ 0.0003 % |
| Phosphate (PO₄) | ≤ 0.0005 % |
| Sulfate (SO₄) | ≤ 0.0005 % |
| Solubility in ethanol | passes test |
| In methanol insoluble matter | ≤ 0.005 % |
| Heavy metals (as Pb) | ≤ 0.0005 % |
| Ca (Calcium) | ≤ 0.002 % |
| Fe (Iron) | ≤ 0.0001 % |
| Pb (Lead) | ≤ 0.001 % |
| Organic impurities | passes test |
| Nonvolatile with methanol | ≤ 0.05 % |
| Corresponds to ACS,ISO,Reag. Ph Eur |
