Specification Sheet
Product Name
Oxalic acid dihydrate BioUltra, ≥99.0% (RT)
Product Number
75699
Product Brand
sigma
CAS Number
6153-56-6
Molecular Weight
126.07
Test | Specification |
|---|---|
| APPEARANCE (COLOR) | Colorless or White |
| APPEARANCE (FORM) | Crystals |
| REDOX TITRATION | ≥ 99.0 % |
| REDOXTITRATION (METHOD) | PERMANGANATE TITRATION |
| LOSS ON DRYING | 28 - 30 % |
| RESIDUE ON IGNITION | ≤ 0.01 % |
| INFRARED SPECTRUM | CONFORMS TO STRUCTURE |
| METAL TRACE ANALYSIS (ICP) | CORRESPONDS TO REQUIREMENTS |
| ALUMINIUM (ICP) | ≤ 5 mg/kg |
| BARIUM (ICP) | ≤ 5 mg/kg |
| BISMUTH (ICP) | ≤ 5 mg/kg |
| CALCIUM (ICP) | ≤ 5 mg/kg |
| CADMIUM (ICP) | ≤ 5 mg/kg |
| COBALT (ICP) | ≤ 5 mg/kg |
| CHROMIUM (ICP) | ≤ 5 mg/kg |
| COPPER (ICP) | ≤ 5 mg/kg |
| IRON (ICP) | ≤ 2 mg/kg |
| POTASSIUM (ICP) | ≤ 50 mg/kg |
| LITHIUM (ICP) | ≤ 5 mg/kg |
| MAGNESIUM (ICP) | ≤ 5 mg/kg |
| MANGANESE (ICP) | ≤ 5 mg/kg |
| MOLYBDENUM (ICP) | ≤ 5 mg/kg |
| SODIUM (ICP) | ≤ 50 mg/kg |
| NICKEL (ICP) | ≤ 5 mg/kg |
| LEAD (ICP) | ≤ 5 mg/kg |
| STRONTIUM (ICP) | ≤ 5 mg/kg |
| ZINC (ICP) | ≤ 5 mg/kg |
| ARSENIC TRACES (MHS-AAS) | ≤ 0.10 mg/kg |
| TOTAL SULFUR AS SO4 (ICP) | ≤ 50 mg/kg |
| CHLORIDE (CL) | ≤ 5 mg/kg |
| TOTAL NITROGEN | ≤ 10 mg/kg |
| SOLUBILITY (METHOD) | 3.782 G IN 30 ML H2O (1 M) |
| APPEARANCE (SOLUTION) | CLEAR COLORLESS |
| PH (SOLUTION) | ~1.0 |
| RESIDUE (FILTER TEST) | NO RESIDUE |
| UV - ABS. AT 280 NM | -- |
| CUT-OFF | ~303 nm |
| RECOMMENDED RETEST PERIOD | 54 MONTHS |