Skip to Content
Merck
All Photos(1)

Documents

75699

Sigma-Aldrich

Oxalic acid dihydrate

BioUltra, ≥99.0% (RT)

Synonym(s):

Ethanedioic acid dihydrate

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Linear Formula:
HO2CCO2H · 2H2O
CAS Number:
6153-56-6
Molecular Weight:
126.07
Beilstein:
3679436
EC Number:
205-634-3
MDL number:
MFCD00149102
UNSPSC Code:
12161700
eCl@ss:
39021701
PubChem Substance ID:
57652582
NACRES:
NA.25

vapor density

4.4 (vs air)

Quality Level

100

vapor pressure

<0.01 mmHg ( 20 °C)

product line

BioUltra

Assay

≥99.0% (RT)

form

crystals

impurities

insoluble matter, passes filter test
≤0.001% total nitrogen (N)

ign. residue (900 °C)

≤0.01% (as SO4)

pH

~1.0 (25 °C, 1 M in H2O)

mp

104-106 °C (lit.)

solubility

H2O: 1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤5 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤5 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤2 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

absorption

cut-off at 303 nm in H2O at 1 M

SMILES string

[H]O[H].[H]O[H].OC(=O)C(O)=O

InChI

1S/C2H2O4.2H2O/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);2*1H2

InChI key

GEVPUGOOGXGPIO-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H302 + H312,H318

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Paul A Nakata
PloS one, 10(10), e0141982-e0141982 (2015-10-31)
The establishment of new approaches to control chewing insects has been sought not only for direct use in reducing crop loss but also in managing resistance to the pesticides already in use. Engineered formation of calcium oxalate crystals is a
Jun Hu et al.
Physical chemistry chemical physics : PCCP, 17(32), 20537-20542 (2015-07-23)
Olive-shaped SnO2 nanocrystals were synthesized successfully via a facile hydrothermal route, using tin dichloride hydrate, oxalic acid dihydrate and polyvinylpyrrolidone as reaction precursors, and showed great potential in the large-scale preparation of SnO2 nanocrystals. The prepared SnO2 nanocrystals were characterized
Radomír Pilný et al.
Dalton transactions (Cambridge, England : 2003), 43(32), 12243-12250 (2014-06-11)
Complex formation between [Pd(H2O)4](2+) and oxalate (ox = C2O4(2-)) has been studied spectrophoto-metrically in aqueous solution at variable temperature, ionic strength and pH. Thermodynamic parameters at 298.2 K and 1.00 mol dm(-3) HClO4 ionic medium for the complex formation [Pd(H2O)4](2+)
Carina S D Wink et al.
Analytical and bioanalytical chemistry, 407(6), 1545-1557 (2015-01-13)
Lefetamine (N,N-dimethyl-1,2-diphenylethylamine, L-SPA) was marketed as an opioid analgesic in Japan and Italy. After being widely abused, it became a controlled substance. It seems to be a pharmaceutical lead for designer drugs because N-ethyl-1,2-diphenylethylamine (NEDPA) and N-iso-propyl-1,2-diphenylethylamine (NPDPA) were confiscated

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service