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di-Ammonium oxalate monohydrate for analysis EMSURE®

di-Ammonium oxalate monohydrate for analysis EMSURE®

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di-Ammonium oxalate monohydrate

Product Information

CAS number6009-70-7
EC index number607-007-00-3
EC number214-202-3
GradeACS,ISO,Reag. Ph Eur
Hill FormulaC₂H₈N₂O₄ * H₂O
Chemical formula(NH₄)₂C₂O₄ * H₂O
Molar Mass142.11 g/mol
HS Code2917 11 00
Structure formula ImageStructure formula Image
Quality LevelMQ300

Physicochemical Information

Density1.5 g/cm3 (20 °C)
Melting Point133 °C (decomposition)
pH value6.5 (41.8 g/l, H₂O, 20 °C)
Bulk density480 kg/m3
Solubility41.8 g/l (anhydrous substance)

Safety Information according to GHS

Assay (manganometric)99.5 – 101.0 %
Insoluble matter≤ 0.005 %
Chloride (Cl)≤ 0.0005 %
Nitrate (NO₃)≤ 0.002 %
Sulfate (SO₄)≤ 0.002 %
Heavy metals (as Pb)≤ 0.0005 %
Ca (Calcium)≤ 0.001 %
Fe (Iron)≤ 0.0002 %
K (Potassium)≤ 0.001 %
Mg (Magnesium)≤ 0.001 %
Na (Sodium)≤ 0.001 %
Residue on ignition (as sulfate)≤ 0.02 %
Corresponds to ACS,ISO,Reag. Ph Eur

Specifications

Purity (GC)≥ 99.8 %
Identity (IR)conforms
Evaporation residue≤ 2.0 mg/l
Water≤ 0.05 %
Acidity≤ 0.0002 meq/g
Alkalinity≤ 0.0002 meq/g
Transmission (at 260 nm)≥ 50 %
Transmission (at 265 nm)≥ 80 %
Transmission (from 270 nm)≥ 98 %
Filtered by 0.2 µm filter