1.02407

di-Sodium oxalate

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

• Sinônimo(s): di-Sodium oxalate, Oxalic acid sodium salt
• Fórmula empírica (Notação de Hill): C₂Na₂O₄
• Número CAS: 62-76-0
• Peso molecular: 134.00
• Número MDL: MFCD00012465
• Código UNSPSC: 41116107
• Número do índice EC: 200-550-3
• NACRES: NA.24

Propriedades

• Agency: ISO 17025; reag. USP
• Nível de qualidade: 300
• Formulário: solid
• potência: 375 mg/kg LD₅₀, oral (Rat)
• técnica(s): titration: suitable
• pH: 8 (20 °C, 30 g/L in H₂O)
• pf: 250-270 °C (decomposition)
• densidade: 2.27 g/cm³ at 20 °C
• densidade volumétrica: 600 kg/m³
• temperatura de armazenamento: 15-25°C
• cadeia de caracteres SMILES: [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
• chave InChI: ZNCPFRVNHGOPAG-UHFFFAOYSA-L

Descrição

Descrição geral

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.
Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.

Aplicação

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

Características e benefícios

• 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
• Accompanied by a certificate of analysis (CoA)

Embalagem

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

Informações legais

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

Informações de segurança

• Pictogramas: GHS07
• Palavra indicadora: Warning
• Frases de perigo: H302 + H312
• Declarações de precaução: P264 - P280 - P301 + P312 - P302 + P352 + P312 - P362 + P364 - P501
• Classificações de perigo: Acute Tox. 4 Dermal - Acute Tox. 4 Oral
• Código de classe de armazenamento: 11 - Combustible Solids
• Classe de risco de água (WGK): WGK 1
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable