OXALIC ACID DIHYDRATE SUPRAPUR

Analysis Note

Assay (alcalimetric, calc. as dihydrate): ≥ 99.5 %
Chloride (Cl): ≤ 5000 ppb
Phosphate (PO₄): ≤ 500 ppb
Sulfate (SO₄): ≤ 2000 ppb
Ag (Silver): ≤ 10 ppb
Al (Aluminium): ≤ 20 ppb
As (Arsenic): ≤ 1.0 ppb
Au (Gold): ≤ 1.0 ppb
Ba (Barium): ≤ 100 ppb
Be (Beryllium): ≤ 1.0 ppb
Bi (Bismuth): ≤ 1.0 ppb
Ca (Calcium): ≤ 100 ppb
Cd (Cadmium): ≤ 50 ppb
Co (Cobalt): ≤ 5 ppb
Cr (Chromium): ≤ 10 ppb
Cu (Copper): ≤ 5 ppb
Fe (Iron): ≤ 50 ppb
Ga (Gallium): ≤ 1.0 ppb
Ge (Germanium): ≤ 1.0 ppb
In (Indium): ≤ 1.0 ppb
K (Potassium): ≤ 200 ppb
Li (Lithium): ≤ 5 ppb
Mg (Magnesium): ≤ 20 ppb
Mn (Manganese): ≤ 5 ppb
Mo (Molybdenum): ≤ 5 ppb
Na (Sodium): ≤ 100 ppb
Ni (Nickel): ≤ 10 ppb
Pb (Lead): ≤ 10 ppb
Pt (Platinum): ≤ 1.0 ppb
Sb (Antimony): ≤ 1.0 ppb
Sn (Tin): ≤ 5 ppb
Sr (Strontium): ≤ 100 ppb
Ti (Titanium): ≤ 5 ppb
Tl (Thallium): ≤ 1.0 ppb
U (Uranium): ≤ 1.0 ppb
V (Vanadium): ≤ 10 ppb
Zn (Zinc): ≤ 20 ppb

Legal Information

SUPRAPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

Molecular Weight: 126.07. Empirical Formula: C₂H₂O₄ · 2H₂O. linearFormula: (COOH)₂ · 2 H₂O. grade: for inorganic trace analysis. Quality Level: 100. vapor pressure: 0.000312 hPa ( 25 °C). Assay: ≥. 99.5% (calculated as dihydrate, alkalimetric). form: solid. potency: 375 . mg/kg LD₅₀, oral (Rat). pH: 1.5 (10 . g/L in H₂O). bp: 149-160 . °C/1013 . hPa (decomposition). mp: 98-100 . °C. transition temp: flash point 157 . °C (decomposition). solubility: water: >. 100 . g/L at . 25 . °C. density: 1.65 . g/cm³ . at 20 . °C. bulk density: 813 . kg/m³. anion traces: chloride (Cl^-): ≤. 5000 . ppb, phosphate (PO₄^3-): ≤. 500 . ppb, sulfate (SO₄^2-): ≤. 2000 . ppb. cation traces: Ag: ≤. 10 . ppb, Al: ≤. 20 . ppb, As: ≤. 1.0 . ppb, Au: ≤. 1.0 . ppb, Ba: ≤. 100 . ppb, Be: ≤. 1.0 . ppb, Bi: ≤. 1.0 . ppb, Ca: ≤. 100 . ppb, Cd: ≤. 50 . ppb, Co: ≤. 5 . ppb, Cr: ≤. 10 . ppb, Cu: ≤. 5 . ppb, Fe: ≤. 50 . ppb, Ga: ≤. 1.0 . ppb, Ge: ≤. 1.0 . ppb, In: ≤. 1.0 . ppb, K: ≤. 200 . ppb, Li: ≤. 5 . ppb, Mg: ≤. 20 . ppb, Mn: ≤. 5 . ppb, Mo: ≤. 5 . ppb, Na: ≤. 100 . ppb, Ni: ≤. 10 . ppb, Pb: ≤. 10 . ppb, Pt: ≤. 1.0 . ppb, Sb: ≤. 1.0 . ppb, Sn: ≤. 5 . ppb, Sr: ≤. 100 . ppb, Ti: ≤. 5 . ppb, Tl: ≤. 1.0 . ppb, U: ≤. 1.0 . ppb, V: ≤. 10 . ppb, Zn: ≤. 20 . ppb. storage temp.: 2-30°C. InChI: 1S/C2H2O4.2H2O/c3-1(4)2(5)6. . /h(H,3,4)(H,5,6). 2*1H2. InChI key: GEVPUGOOGXGPIO-UHFFFAOYSA-N. Pictograms: GHS05,GHS07. Signal Word: Danger. Hazard Statements: H302 + H312 - H318. Precautionary Statements: P264 - P280 - P301 + P312 - P302 + P352 + P312 - P305 + P351 + P338 - P362 + P364. Hazard Classifications: Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1. Storage Class Code: 11 - Combustible Solids. WGK: WGK 1.