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Iron(II) ethylenediammonium sulfate

Volumetric standard, secondary reference material for redox titration, traceable to NIST Standard Reference Material (SRM) Certipur® Reag. Ph Eur

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Synonym(s):
Iron(II) ethylenediammonium sulfate
Linear Formula:
(CH2NH3)2SO4 · FeSO4 · 4H2O
CAS Number:
Molecular Weight:
382.15
EC Index Number:
264-357-6

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

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

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This Item
4149132035051.03963
Iron(II) sulfate heptahydrate crystalline, EMPROVE® ESSENTIAL, Ph. Eur., BP, USP, FCC

SAFC

1.03963

Iron(II) sulfate heptahydrate

agency

ISO 17025

agency

-

agency

-

agency

BP, Ph. Eur., USP

form

solid

form

solid

form

crystalline

form

crystalline, solid

pH

4.0 (25 °C, 100 g/L in H2O)

pH

-

pH

-

pH

3-4 (20 °C, 50 g/L in H2O)

solubility

170 g/L

solubility

-

solubility

-

solubility

-

bulk density

600 kg/m3

bulk density

-

bulk density

-

bulk density

-

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

related product

Product No.
Description
Pricing

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

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Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

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