1.02407
di-Sodium oxalate
volumetric standard, secondary reference material for redox titration, traceable to NIST Standard Reference Material (SRM) Certipur® Reag. USP
Synonyme(s) :
di-Sodium oxalate, Oxalic acid sodium salt
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A propos de cet article
Formule empirique (notation de Hill) :
C2Na2O4
Numéro CAS:
Poids moléculaire :
134.00
UNSPSC Code:
41116107
EC Index Number:
200-550-3
NACRES:
NA.24
MDL number:
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Laissez-nous vous aiderQuality Level
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.
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
signalword
Warning
hcodes
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Oral
Classe de stockage
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificats d'analyse (COA)
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