1.02402
Iron(II) ethylenediammonium sulfate
Volumetric standard, secondary reference material for redox titration, traceable to NIST Standard Reference Material (SRM) Certipur® Reag. Ph Eur
Synonym(s):
Iron(II) ethylenediammonium sulfate
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About This Item
CAS Number:
MDL number:
UNSPSC Code:
41116107
EC Index Number:
264-357-6
NACRES:
NA.24
agency
ISO 17025
reag. Ph. Eur.
Quality Level
form
solid
technique(s)
titration: suitable
pH
4.0 (25 °C, 100 g/L in H2O)
solubility
170 g/L
bulk density
600 kg/m3
storage temp.
15-25°C
SMILES string
O=S(=O)(O)O.O.[FeH2].NCCN
InChI
1S/C2H8N2.Fe.H2O4S/c3-1-2-4;;1-5(2,3)4/h1-4H2;;(H2,1,2,3,4)/q;+3;
General description
Iron(II) ethylenediammonium sulfate volumetric standard is 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.
Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.
Application
It finds its use as a certified reference material (CRM) for the standardization of volumetric solutions in redox titrations, according to 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 SRMs
- 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)
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
Storage Class
13 - Non Combustible Solids
wgk_germany
WGK 2
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’.
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