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1.03792

Ammonium iron(II) sulfate hexahydrate

for analysis EMSURE® ISO

Synonym(s):

Ammonium iron(II) sulfate hexahydrate

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About This Item

Empirical Formula (Hill Notation):
H8FeN2O8S2 · 6H2O
CAS Number:
Molecular Weight:
392.14
UNSPSC Code:
12352302
EC Index Number:
233-151-8
NACRES:
NA.21
MDL number:
Assay:
99.0-101.5% (manganometric)
Form:
solid
Solubility:
269 g/L
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agency

reag. ISO

Quality Level

product line

EMSURE®

assay

99.0-101.5% (manganometric)

form

solid

potency

3250 mg/kg LD50, oral (Rat)

pH

3.0-5.0 (25 °C, 5% in water)

mp

39-41 °C (decomposition)

solubility

269 g/L

density

1.86 g/cm3 at 20 °C

bulk density

900 kg/m3

anion traces

chloride (Cl-): ≤0.001%, phosphate (PO43-): ≤0.002%

cation traces

Ca: ≤0.002%, Cu: ≤0.002%, Fe3+: ≤0.02%, K: ≤0.01%, Mg: ≤0.01%, Mn: ≤0.05%, Na: ≤0.01%, Pb: ≤0.001%, Zn: ≤0.003%

storage temp.

15-25°C

SMILES string

[Fe+3].[S](=O)(=O)([O-])[O-].[S](=O)(=O)([O-])[O-].[N+H4].[N+H4].O.O.O.O.O.O

InChI

1S/Fe.2H3N.2H2O4S.6H2O/c;;;2*1-5(2,3)4;;;;;;/h;2*1H3;2*(H2,1,2,3,4);6*1H2/q+3;;;;;;;;;;/p-2

InChI key

SHHFGSWBFZVUNE-UHFFFAOYSA-L

Application


  • Water-Mediated Green and Efficient Synthesis of Bis(Indolyl)methanes Using Ammonium Iron(II) Sulfate.: This research highlights the use of ammonium iron(II) sulfate hexahydrate in the green synthesis of bis(indolyl)methanes. The study demonstrates the compound′s efficiency and eco-friendliness in catalyzing reactions in water, offering a sustainable alternative in organic synthesis (Letters in Organic Chemistry, 2020).


  • Determination of Ferromanganese and Ferrosilicon by Ammonium Ferrous Sulfate Titration and ICP.: This paper discusses the analytical methods for determining ferromanganese and ferrosilicon using ammonium iron(II) sulfate titration and inductively coupled plasma (ICP). The study underscores the compound′s role in precise quantitative analysis in metallurgical processes (Modern Analytical Chemistry Research, 2020).



Analysis Note

Assay (manganometric): 99.0 - 101.5 %


pH-value (5%; water; 25°C) 3.0 - 5.0


Chloride (Cl): ≤ 0.001 %


Phosphate (PO₄): ≤ 0.002 %


Iron(III)-salts (Fe³⁺): ≤ 0.02 %


Ca (Calcium): ≤ 0.002 %


Cu (Copper): ≤ 0.002 %


K (Potassium): ≤ 0.01 %


Mg (Magnesium): ≤ 0.01 %


Mn (Manganese): ≤ 0.05 %


Na (Sodium): ≤ 0.01 %


Pb (Lead): ≤ 0.001 %


Zn (Zinc): ≤ 0.003 %


Corresponds to ISO

Legal Information

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

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This Item
203505F375409719
form

solid

form

crystalline

form

powder or crystals

form

-

assay

99.0-101.5% (manganometric)

assay

99.997% trace metals basis

assay

≥98%

assay

≥99.0% (RT)

solubility

269 g/L

solubility

-

solubility

-

solubility

H2O: 0.5 M at 20 °C, clear, faintly yellow-green

Quality Level

300

Quality Level

200

Quality Level

200

Quality Level

100

anion traces

chloride (Cl-): ≤0.001%, phosphate (PO43-): ≤0.002%

anion traces

-

anion traces

-

anion traces

chloride (Cl-): ≤10 mg/kg, phosphate (PO43-): ≤20 mg/kg

cation traces

Cu: ≤0.002%, K: ≤0.01%, Mn: ≤0.05%, Pb: ≤0.001%, Ca: ≤0.002%, Mg: ≤0.01%, Zn: ≤0.003%, Fe3+: ≤0.02%, Na: ≤0.01%

cation traces

-

cation traces

-

cation traces

Cd: ≤5 mg/kg, Co: ≤50 mg/kg, Cr: ≤50 mg/kg, Cu: ≤5 mg/kg, Fe3+: ≤50 mg/kg, K: ≤50 mg/kg, Mg: ≤100 mg/kg, Mn: ≤500 mg/kg, Na: ≤50 mg/kg, Ni: ≤100 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg


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Storage Class

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable



Certificates of Analysis (COA)

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Global Trade Item Number

SKUGTIN
103792050004022536044156
103792905004022536044200
103792500004022536044194
103792100004022536044170

Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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