Skip to Content
Merck
All Photos(1)

Documents

1.02402

Supelco

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

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Linear Formula:
(CH2NH3)2SO4 · FeSO4 · 4H2O
CAS Number:
113193-60-5
Molecular Weight:
382.15
UNSPSC Code:
41116107
EC Index Number:
264-357-6
NACRES:
NA.24

Agency

ISO 17025
reag. Ph. Eur.

Quality Level

300

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;

InChI key

WAYQJNDEVYLLFJ-UHFFFAOYSA-N

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.

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 Code

13 - Non Combustible Solids

WGK

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service