Skip to Content
Merck

Key Documents

View All Documentation

1.02407

di-Sodium oxalate

volumetric standard, secondary reference material for redox titration, traceable to NIST Standard Reference Material (SRM) Certipur® Reag. USP

Synonym(s):

di-Sodium oxalate, Oxalic acid sodium salt

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Empirical Formula (Hill Notation):
C2Na2O4
CAS Number:
62-76-0
Molecular Weight:
134.00
UNSPSC Code:
41116107
EC Index Number:
200-550-3
NACRES:
NA.24
MDL number:
MFCD00012465
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Quality Level

300

agency

ISO 17025, reag. USP

form

solid

potency

375 mg/kg LD50, oral (Rat)

technique(s)

titration: suitable

pH

8 (20 °C, 30 g/L in H2O)

mp

250-270 °C (decomposition)

density

2.27 g/cm3 at 20 °C

bulk density

600 kg/m3

storage temp.

15-25°C

SMILES string

[Na+].[Na+].[O-]C(=O)C(=O)[O-]

InChI

1S/C2H2O4.2Na/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);;/q;2*+1/p-2

InChI key

ZNCPFRVNHGOPAG-UHFFFAOYSA-L

General description

Di-sodium oxalate is a volumetric standard manufactured under stringent conditions and measured with the highest possible precision. Its mass fraction is determined by potentiometric titration, and it is qualified in a DIN EN ISO/IEC 17025 accredited laboratory.
Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.


In our effort to be more sustainable, we′re going digital with COAs-download them directly from our website. Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.

Application

It is used as a certified reference material (CRM) for titer determinations in redox titrations, according to reagents chapters of USP and Ph. Eur.

Features and Benefits

  • Available as a solid in a secure glass bottle to ensure its stability for the entire shelf life until opened.
  • Certified reference material according to ISO 17034
  • High-purity material traceable to NIST standard reference materials
  • Qualified in a DIN EN ISO/IEC 17025 accredited laboratory
  • In accordance with the chapter reagents of USP and Ph. Eur
  • High-quality offering accurate titer determinations

Packaging

SKU-pack size numbers ending with a "3" are SmartChemicals with an RFID tag on the label for seamless data transfer to the instrument, e.g. xxxxxx1003 or xxxxxxx 4003. More information on www.sigmaaldrich.com/SmartChemicals

Legal Information

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

Still not finding the right product?

Explore all of our products under di-Sodium oxalate

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Oral

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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