Acide oxalique dihydrate, puriss. p.a., ACS réactif, reag. ISO, reag. Ph. Eur. , >= 99,5% (manganométrique)

Code: 33506-1kg D2-231

Non disponible en dehors du Royaume-Uni et de l'Irlande

Application

Oxalic acid dihydrate has been used to prepare oxalate precursor, which was employed for the synthesis of zinc oxide nanopowders. It may be used to prepare the 0....

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Non disponible en dehors du Royaume-Uni et de l'Irlande

Application

Oxalic acid dihydrate has been used to prepare oxalate precursor, which was employed for the synthesis of zinc oxide nanopowders. It may be used to prepare the 0.01M solution of oxalic acid, which was employed in the mobile phase in liquid chromatographic studies.

General description

Oxalic acid dihydrate crystals are monoclinic and exhibit a space group P2₁/n. Each unit cell contains two molecules. ¹³C chemical shielding tensors in oxalic acid dihydrate have been evaluated.

agency	reag. ISO, USP/NF, reag. Ph. Eur.
anion traces	sulfate (SO₄^2-): ≤20 mg/kg, chloride (Cl^-): ≤5 mg/kg
assay	≥99.5% (manganometric)
cation traces	heavy metals: ≤5 ppm (by ICP-OES), Ca: ≤5 mg/kg, Pb: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤2 mg/kg, Zn: ≤5 mg/kg, Ni: ≤5 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg
form	crystals
grade	puriss. p.a., ACS reagent
ign. residue	≤0.01% (as SO₄)
impurities	≤0.001% total nitrogen (N), foreign organic matter, in accordance
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	104-106 °C (lit.)
Quality Level	200
SMILES string	[H]O[H].[H]O[H].OC(=O)C(O)=O
vapor density	4.4 (vs air)
vapor pressure	﹤0.01 mmHg ( 20 °C)