Analysis Note

Assay (alcalimetric, calc. as dihydrate): ≥ 99.5 %Chloride (Cl): ≤ 5000 ppbPhosphate (PO₄): ≤ 500 ppbSulfate (SO₄): ≤ 2000 ppbAg (Silver): ≤ 10 ppbAl (Aluminium): ≤ 20 ppbAs (Arsenic): ≤ 1.0 ppbAu (Gold): ≤ 1.0 ppbBa (Barium): ≤ 100 ppbBe (Beryllium): ≤ 1.0 ppbBi (Bismuth): ≤ 1.0 ppbCa (Calcium): ≤ 100 ppbCd (Cadmium): ≤ 50 ppbCo (Cobalt): ≤ 5 ppbCr (Chromium): ≤ 10 ppbCu (Copper): ≤ 5 ppbFe (Iron): ≤ 50 ppbGa (Gallium): ≤ 1.0 ppbGe (Germanium): ≤ 1.0 ppbIn (Indium): ≤ 1.0 ppbK (Potassium): ≤ 200 ppbLi (Lithium): ≤ 5 ppbMg (Magnesium): ≤ 20 ppbMn (Manganese): ≤ 5 ppbMo (Molybdenum): ≤ 5 ppbNa (Sodium): ≤ 100 ppbNi (Nickel): ≤ 10 ppbPb (Lead): ≤ 10 ppbPt (Platinum): ≤ 1.0 ppbSb (Antimony): ≤ 1.0 ppbSn (Tin): ≤ 5 ppbSr (Strontium): ≤ 100 ppbTi (Titanium): ≤ 5 ppbTl (Thallium): ≤ 1.0 ppbU (Uranium): ≤ 1.0 ppbV (Vanadium): ≤ 10 ppbZn (Zinc): ≤ 20 ppb

Legal Information

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

Packaging

100 g in Plastic bottle

anion traces	sulfate (SO₄^2-): ≤2000 ppb, chloride (Cl^-): ≤5000 ppb, phosphate (PO₄^3-): ≤500 ppb
assay	≥99.5% (calculated as dihydrate, alkalimetric)
bp	149-160 °C/1013 hPa (decomposition)
bulk density	813 kg/m³
cation traces	Sr: ≤100 ppb, Cd: ≤50 ppb, Cu: ≤5 ppb, Sn: ≤5 ppb, Mo: ≤5 ppb, Pt: ≤1.0 ppb, Cr: ≤10 ppb, Pb: ≤10 ppb, U: ≤1.0 ppb, Ti: ≤5 ppb, Fe: ≤50 ppb, In: ≤1.0 ppb, Ni: ≤10 ppb, Mn: ≤5 ppb, Ca: ≤100 ppb, Au: ≤1.0 ppb, Li: ≤5 ppb, As: ≤1.0 ppb, Zn: ≤20 ppb, Ge: ≤1.0 ppb, Tl: ≤1.0 ppb, Ag: ≤10 ppb, Sb: ≤1.0 ppb, Co: ≤5 ppb, Be: ≤1.0 ppb, V: ≤10 ppb, Mg: ≤20 ppb, Ba: ≤100 ppb, K: ≤200 ppb, Na: ≤100 ppb, Al: ≤20 ppb, Ga: ≤1.0 ppb, Bi: ≤1.0 ppb
density	1.65 g/cm³ at 20 °C
form	solid
grade	for inorganic trace analysis
InChI key	GEVPUGOOGXGPIO-UHFFFAOYSA-N
InChI	1S/C2H2O4.2H2O/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);2*1H2
mp	98-100 °C
pH	1.5 (10 g/L in H₂O)
potency	375 mg/kg LD₅₀, oral (Rat)
Quality Level	100
solubility	water: >100 g/L at 25 °C
storage temp.	2-30°C
transition temp	flash point 157 °C (decomposition)
vapor pressure	0.000312 hPa ( 25 °C)

Safety Data Sheet for 1004890100

Cas Number	6153-56-6
Hazard Class	8
Un Number	3261
Pack Group	III

This product has met the following criteria to qualify for the following awards:

OXALIC ACID DIHYDRATE SUPRAPUR

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