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93722
Fluka
Oxalic acid dihydrate
SKU
93722
TraceSELECT™, ≥99.9999% (metals basis)
Synonym(s)
Ethanedioic acid
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TraceSELECT™ Ultra and TraceSELECT
- ultra-pure acids, bases, and salts for smelting and wet digestion in environmental, water, and food analysis
- sample preparation for trace analysis requires reagents of the highest purity; our TraceSELECT Ultra products for ultra-trace analysis at ppb and even ppt levels are produced by sub-boiling distillation
- the acids, bases, and salts in the TraceSELECT series have been developed for sample preparation and analysis in the ppb (μg/kg) trace range
- packaged in high-quality containers appropriate for each product
- the reagents are produced and bottled under clean-room conditions
| Brand Fluka | Beilstein Registry Number | CAS Numbers (All) | EC Number | Linear Formula HO2CCO2H · 2H2O |
| MDL Number | Molar Mass 126.07 g/mol | RTECS Number 205-634-3 | Synonyms Ethanedioic acid |
Documents
Specifications
| Property | Value |
|---|---|
| Assay (alkalimetric) | Min. 99.5 % |
| Silver (Ag) | Max. 0.01 ppm |
| Aluminium (Al) | Max. 0.02 ppm |
| Arsenic (As) | Max. 0.01 ppm |
| Gold (Au) | Max. 0.001 ppm |
| Barium (Ba) | Max. 0.01 ppm |
| Beryllium (Be) | Max. 0.001 ppm |
| Bismuth (Bi) | Max. 0.001 ppm |
| Calcium (Ca) | Max. 0.1 ppm |
| Cadmium (Cd) | Max. 0.05 ppm |
| Cerium (Ce) | Max. 0.005 ppm |
| Cobalt (Co) | Max. 0.005 ppm |
| Chromium (Cr) | Max. 0.01 ppm |
| Cesium (Cs) | Max. 0.01 ppm |
| Copper (Cu) | Max. 0.005 ppm |
| Dysprosium (Dy) | Max. 0.005 ppm |
| Erbium (Er) | Max. 0.005 ppm |
| Europium (Eu) | Max. 0.005 ppm |
| Iron (Fe) | Max. 0.05 ppm |
| Gallium (Ga) | Max. 0.001 ppm |
| Gadolinium (Gd) | Max. 0.005 ppm |
| Germanium (Ge) | Max. 0.005 ppm |
| Hafnium (Hf) | Max. 0.005 ppm |
| Mercury (Hg) | Max. 5 ppb |
| Holmium (Ho) | Max. 0.005 ppm |
| Indium (In) | Max. 0.001 ppm |
| Iridium (Ir) | Max. 0.005 ppm |
| Potassium (K) | Max. 0.2 ppm |
| Lanthanum (La) | Max. 0.005 ppm |
| Lithium (Li) | Max. 0.005 ppm |
| Lutetium (Lu) | Max. 0.005 ppm |
| Magnesium (Mg) | Max. 0.02 ppm |
| Manganese (Mn) | Max. 0.005 ppm |
| Molybdenum (Mo) | Max. 0.005 ppm |
| Sodium (Na) | Max. 0.1 ppm |
| Niobium (nb) | Max. 0.005 ppm |
| Neodymium (nd) | Max. 0.005 ppm |
| Nickel (Ni) | Max. 0.01 ppm |
| Lead (Pb) | Max. 0.01 ppm |
| Palladium (Pd) | Max. 0.01 ppm |
| Praseodymium (Pr) | Max. 0.005 ppm |
| Platinum (Pt) | Max. 0.05 ppm |
| Rubidium (Rb) | Max. 0.01 ppm |
| Rhenium (Re) | Max. 0.005 ppm |
| Rhodium (Rh) | Max. 0.005 ppm |
| Ruthenium (Ru) | Max. 0.005 ppm |
| Antimony (Sb) | Max. 0.005 ppm |
| Scandium (Sc) | Max. 0.05 ppm |
| Selenium (Se) | Max. 0.01 ppm |
| Samarium (Sm) | Max. 0.005 ppm |
| Tin (Sn) | Max. 0.005 ppm |
| Strontium (Sr) | Max. 0.01 ppm |
| Tantalum (Ta) | Max. 0.01 ppm |
| Terbium (Tb) | Max. 0.005 ppm |
| Tellurium (Te) | Max. 0.005 ppm |
| Thorium (Th) | Max. 0.005 ppm |
| Titanium (Ti) | Max. 0.02 ppm |
| Thallium (Tl) | Max. 0.001 ppm |
| Thulium (Tm) | Max. 0.005 ppm |
| Uran (U) | Max. 0.001 ppm |
| Vanadium (V) | Max. 0.01 ppm |
| Tungsten (W) | Max. 0.005 ppm |
| Yttrium (Y) | Max. 0.005 ppm |
| Ytterbium (Yb) | Max. 0.005 ppm |
| Zinc (Zn) | Max. 0.02 ppm |
| Zirconium (Zr) | Max. 0.1 ppm |
| Chloride (Cl) | Max. 5000 ppb |
| Phosphate (PO4) | Max. 500 ppb |
| Sulfate (SO4) | Max. 2000 ppb |
| Total N | Max. 10 ppm |
Properties
| Property | Value |
|---|---|
| Autoignition Temperature | >400 °C (1.013 hPa) |
| Boiling Point/Range | No data available |
| Color | White |
| Density | 1.65 g/cm3 (20 °C) |
| Flashpoint | Not applicable |
| Form | Powder |
| Grade | Trace Analysis |
| Incompatible Materials | Incompatible with oxidizing agents. |
| Lower Explosion Limit | No data available |
| Melting Point/Range | 98-100 °C (Elimination of water of crystallisation) |
| Partition Coefficient | -1.7< 2 (23 °C) |
| Purity Percentage | 100.00 |
| Purity Details | >=99.9999% |
| Solubility in Water | >100 g/l (25 °C) |
| Upper Explosion Limit | No data available |
| Vapor Pressure | 0.0312 Pa (25 °C) |
| Viscosity | No data available |
| pH-Value | 1.5 at 10 g/l |
| Product Line | TraceSELECT™ |
| Storage Temperature | Ambient |
Safety Information
| Property | Value |
|---|---|
| Hazard Class | N/A |
| Package Group | N/A |
| UN ID | N/A |
