Citric Acid Monphydrate 1kg
for analysis EMSURE® ACS,ISO,Reag. Ph Eur
Manufacturer: Merck
Catalog ID: 100244.1000
Stock: In Stock
Description
| Catalogue Number | 100244 |
| Replaces | CX1725-1; CX1725-3; CX1725 |
| Synonyms | 2-Hydroxypropane-1,2,3-tricarboxylic acid, Hydroxytricarballylic acid |
Product Information
| CAS number | 5949-29-1 |
| EC number | 201-069-1 |
| Grade | ACS,ISO,Reag. Ph Eur |
| Hill Formula | C₆H₈O₇ * H₂O |
| Molar Mass | 210.14 g/mol |
| HS Code | 2918 14 00 |
Physicochemical Information
| Density | 1.54 g/cm3 (20 °C) |
| Flash point | 173.9 °C Not applicable |
| Melting Point | 135 - 152 °C |
| pH value | 1.85 (50 g/l, H₂O, 25 °C) |
| Vapor pressure | <1 Pa (25 °C) |
| Bulk density | 800 - 1000 kg/m3 |
| Solubility | 880 g/l |
Toxicological Information
| LD 50 oral | LD50 Rat 3000 mg/kg |
Storage and Shipping Information
| Storage | Storage temperature: no restrictions. |
Specifications
| Assay (acidimetric, calc. on anhydrous substance) | 99.5 - 100.5 % |
| Identity (IR-spectrum) | passes test |
| Appearance | white to almost white or colorless crystals |
| Appearance of solution (200 g/l; water) | clear (≤ 3 NTU) and not more intense in color than reference solution Y₇, BY₇ or GY₇ |
| In water insoluble matter | ≤ 50 ppm |
| Chloride (Cl) | ≤ 5 ppm |
| Phosphate (PO₄) | ≤ 10 ppm |
| Sulphate (SO₄) | ≤ 20 ppm |
| Heavy metals (as Pb) | ≤ 5 ppm |
| Al (Aluminium) | ≤ 0.2 ppm |
| As (Arsenic) | ≤ 1 ppm |
| Hg (Mercury) | ≤ 1 ppm |
| Cu (Copper) | ≤ 5 ppm |
| Fe (Iron) | ≤ 3 ppm |
| Fe (Iron, acc. to Reag. Ph Eur.) | suitable to use in the limit test for iron |
| Pb (Lead) | ≤ 0.5 ppm |
| Oxalates (as C₂H₂O₄) | ≤ 50 ppm |
| Readily carbonisable substance | passes test |
| Sulfated ash | ≤ 200 ppm |
| Water (according to Karl Fischer) | 7.5 - 8.8 % |
| Corresponds to ACS, ISO 6353/2, Reag. Ph. Eur. |
