1.06664

Sodium tartrate dihydrate

Certified Reference Material for Karl Fischer Titration 15.66% Aquastar^®

• Synonym(s): Sodium tartrate dihydrate, di-Sodium tartrate dihydrate, Tartaric acid sodium salt dihydrate
• Empirical Formula (Hill Notation): C₄H₄Na₂O₆ · 2H₂O
• CAS Number: 6106-24-7
• Molecular Weight: 230.08
• UNSPSC Code: 41115601
• EC Index Number: 212-773-3
• NACRES: NA.24
• MDL number: MFCD00150035

Properties

• grade: certified reference material
• Quality Level: 300
• agency: ISO 17025, 17034
• product line: Aquastar^®
• form: solid
• reaction suitability: reaction type: water standard for Karl Fischer titration
• packaging: bottle of 100 g
• technique(s): Karl-Fischer titration: suitable, titration: suitable
• pH: 8 (25 °C, 50 g/L in H₂O)
• solubility: 290 g/L
• density: 1.82 g/cm³
• bulk density: 460 kg/m³
• format: neat
• storage temp.: 15-25°C
• SMILES string: [Na+].[Na+].[O-]C(=O)[C@H](O)[C@@H](O)C(=O)[O-].O.O
• InChI: 1S/C4H6O6.2Na.2H2O/c5-1(3(7)8)2(6)4(9)10;;;;/h1-2,5-6H,(H,7,8)(H,9,10);;;2*1H2/q;2*+1;;/p-2/t1-,2-;;;;/m1..../s1
• InChI key: FGJLAJMGHXGFDE-DGFHWNFOSA-L

Description

General description

Sodium tartrate dihydrate is a solid standard with a water content of 15.66% determined by the technique of loss on drying at 150°C. Its preparation from high-purity reagents and analysis is completed in an ISO/IEC 17025 and ISO 17034 accredited calibration 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 https://www.sigmaaldrich.com/US/en/documents-search to view certified values, including uncertainty and expiry date.

Application

The sodium tartrate dihydrate CRM is used for the standardization of volumetric Karl Fischer titrants according to European Pharmacopeia (Ph.Eur.) chapter 2.5.12 “Water Semi-Micro Determination”, United States Pharmacopeia <921> “Water Determination”.

Features and Benefits

• Available in a secure plastic bottle
• Subjected to stability and homogeneity studies following ISO 17034 and ISO Guide 35
• High-quality offering accurate and reliable results
• Measured and qualified in an ISO/IEC 17025 and ISO 17034 accredited laboratory

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.

Other Notes

Replaces: 1.06664.0100

Legal Information

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

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable