Sodium Fluoride Extra Pure 1 Kg
Sodium fluoride extra pure, for table water. CAS No. 7681-49-4, EC Number 231-667-8.
Manufacturer: Merck
Catalog ID: 172576.1000
Stock: In Stock
Description
| Catalogue Number | 172576 |
Product Information
| CAS number | 7681-49-4 |
| EC index number | 009-004-00-7 |
| EC number | 231-667-8 |
| Hill Formula | FNa |
| Chemical formula | NaF |
| Molar Mass | 41.98 g/mol |
| HS Code | 2826 19 10 |
Applications
| Application | Sodium fluoride extra pure, for table water. CAS No. 7681-49-4, EC Number 231-667-8. |
Physicochemical Information
| Density | 2.8 g/cm3 (20 °C) |
| Melting Point | 996 °C |
| pH value | 10.2 (40 g/l, H₂O, 20 °C) |
| Vapor pressure | 1 hPa (1077 °C) |
| Solubility | 42 g/l soluble |
Toxicological Information
| LD 50 oral | LD50 Rat 148.5 mg/kg |
Storage and Shipping Information
| Storage | Store at +5°C to +30°C. |
Specifications
| Appearance | White powder |
| Assay (precipitative titration, calculated on dried substance) | 98.5 - 100.5 % |
| Identity | passes test |
| Appearance of solution (2.5 %, water) | clear and colourless |
| Alkalinity (as NaOH) | ≤ 1000 mg/kg |
| Acidity (as HF) | ≤ 2000 mg/kg |
| Bromide (Br) (IC) | ≤ 15 mg/kg |
| Chloride (Cl) | ≤ 100 mg/kg |
| Hexafluorosilicate (SiF₆) | ≤ 1000 mg/kg |
| Iodide (I) | ≤ 20 mg/kg |
| Nitrate (NO₃) | ≤ 40 mg/kg |
| Phosphate (PO₄) | ≤ 15 mg/kg |
| Sulfate (SO₄) | ≤ 100 mg/kg |
| Heavy metals (as Pb) | ≤ 30 mg/kg |
| As (Arsenic) | ≤ 1 mg/kg |
| Cu (Copper) | ≤ 10 mg/kg |
| Fe (Iron) (ICP OES) | ≤ 50 mg/kg |
| Hg (Mercury) | ≤ 1 mg/kg |
| Pb (Lead) | ≤ 30 mg/kg |
| Se (Selenium) | ≤ 30 mg/kg |
| Zn (Zinc) | ≤ 25 mg/kg |
| Organic volatile impurities (USP) | conforms |
| Odour and taste | not testet, typical properties |
| Loss on drying (150 °C, 4 h) | ≤ 0.5 % |
