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
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About This Item
Empirical Formula (Hill Notation):
C4H4Na2O6 · 2H2O
CAS Number:
Molecular Weight:
230.08
UNSPSC Code:
41115601
EC Index Number:
212-773-3
NACRES:
NA.24
MDL number:
Quality Segment
grade
certified reference material
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
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.
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
Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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