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
1.03965
Iron(II) sulfate heptahydrate
for analysis EMSURE® ACS,ISO,Reag. Ph Eur
Synonyme(s) :
Iron(II) sulfate heptahydrate, Iron
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About This Item
Qualité
ACS reagent
Niveau de qualité
Agence
reag. ISO
reag. Ph. Eur.
Gamme de produits
EMSURE®
Essai
99.5-102.0% (manganometric)
Forme
solid
Puissance
319 mg/kg LD50, oral (Rat)
Impuretés
≤0.01% Insoluble matter
pH
3-4 (20 °C, 50 g/L in H2O)
Pf
>60 °C (Elimination of water of crystallisation)
Densité
1.89 g/cm3 at 20 °C
Masse volumique apparente
600 kg/m3
Traces d'anions
chloride (Cl-): ≤0.0005%
phosphate (PO43-): ≤0.001%
Traces de cations
As: ≤0.0002%
Ca: ≤0.005%
Co: ≤0.0025%
Cr: ≤0.0050%
Cu: ≤0.001%
Fe3+: ≤0.02%
K: ≤0.002%
Mg: ≤0.002%
Mn: ≤0.05%
N: ≤0.001%
Na: ≤0.02%
Ni: ≤0.0050%
Pb: ≤0.0005%
Zn: ≤0.0050%
heavy metals (as Pb): ≤0.005%
Température de stockage
15-25°C
Chaîne SMILES
[Fe+2].[S](=O)(=O)([O-])[O-].O.O.O.O.O.O.O
InChI
1S/Fe.H2O4S.7H2O/c;1-5(2,3)4;;;;;;;/h;(H2,1,2,3,4);7*1H2/q+2;;;;;;;;/p-2
Clé InChI
SURQXAFEQWPFPV-UHFFFAOYSA-L
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Catégories apparentées
Liaison
Remarque sur l'analyse
Identity: passes test
Appearance of solution: passes test
Insoluble matter: ≤ 0.01 %
pH-value (5 %; water): 3.0 - 4.0
Chloride (Cl): ≤ 0.0005 %
Phosphate (PO₄): ≤ 0.001 %
Total nitrogen (N): ≤ 0.001 %
Heavy metals as Pb: ≤ 0.005 %
As (Arsenic): ≤ 0.0002 %
Ca (Calcium): ≤ 0.005 %
Cr (Chromium): ≤ 0.0050 %
Cu (Copper): ≤ 0.001 %
Fe III (Iron III): ≤ 0.02 %
K (Potassium): ≤ 0.002 %
Mg (Magnesium): ≤ 0.002 %
Mn (Manganese): ≤ 0.05 %
Na (Sodium): ≤ 0.02 %
Ni (Nickel): ≤ 0.0050 %
Pb (Lead): ≤ 0.0005 %
Zn (Zinc): ≤ 0.0050 %
Co (Cobalt): ≤ 0.0025 %
Substance not precipitated by ammonium hydroxide: ≤ 0.1 %
Corresponds to ACS,ISO,Reag. Ph Eur
Informations légales
Mention d'avertissement
Warning
Mentions de danger
Conseils de prudence
Classification des risques
Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2
Code de la classe de stockage
13 - Non Combustible Solids
Classe de danger pour l'eau (WGK)
WGK 1
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
Certificats d'analyse (COA)
Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
Helpful?
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
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/449/386/product-dating-information-mk.pdfHelpful?
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To whom it may concern, We keep Iron(II) sulfate heptahydrate at room temperature over the years. I am wondering if there is a chance it can get oxidized?
1 answer-
Iron(II) sulfate heptahydrate can oxidize over time, particularly when exposed to air. The recommended storage temperature is 15-25°C. The lot-specific shelf life is available on the Certificate of Analysis.
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