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Merck

A6756

Sigma-Aldrich

Natriumarsenat, zweibasisch Heptahydrat

≥98.0%

Synonym(e):

Di-Natriumhydrogenarsenat Heptahydrat, Dinatriumhydrogenarsenat Heptahydrat

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50 G
€ 84,70
100 G
€ 146,00

€ 84,70


Voraussichtliches Versanddatum31. März 2025


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50 G
€ 84,70
100 G
€ 146,00

About This Item

Lineare Formel:
Na2HAsO4 · 7H2O
CAS-Nummer:
Molekulargewicht:
312.01
MDL-Nummer:
UNSPSC-Code:
12352302
PubChem Substanz-ID:
NACRES:
NA.21
Assay:
≥98.0%
Form:
powder

€ 84,70


Voraussichtliches Versanddatum31. März 2025


Bulk-Bestellung anfordern

Qualitätsniveau

Assay

≥98.0%

Form

powder

Eignung der Reaktion

reagent type: catalyst
core: arsenic

pH-Wert

8.5-9.0 (25 °C, 50 g/L)

SMILES String

O.O.O.O.O.O.O.[Na+].[Na+].O[As]([O-])([O-])=O

InChI

1S/AsH3O4.2Na.7H2O/c2-1(3,4)5;;;;;;;;;/h(H3,2,3,4,5);;;7*1H2/q;2*+1;;;;;;;/p-2

InChIKey

KOLXPEJIBITWIQ-UHFFFAOYSA-L

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Allgemeine Beschreibung

Zweibasisches Natriumarsenatheptahydrat (As(V)) ist eine Arsenverbindung.

Anwendung

Zweibasisches Natriumarsenatheptahydrat kann als Referenzstandard für die Quantifizierung von Arsenverbindungen in Proben auf Reis- und Meeresfrüchtebasis mittels Ionenchromatographie-Massenspektrometrie mit induktiv gekoppeltem Plasma verwendet werden. Die Proben zur Analyse werden mittels Ultraschall-gestützter Enzymextraktion (UAEE) vorbereitet.[1]

Signalwort

Danger

Gefahreneinstufungen

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1A

Lagerklassenschlüssel

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


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Die Dokumentenbibliothek aufrufen

Validation of a method for arsenic speciation in food by ion chromatography-inductively coupled plasma/mass spectrometry after ultrasonic-assisted enzymatic extraction.
Dufailly V, et al.
Journal of AOAC (Association of Official Analytical Chemists) International, 94(3), 947-958 (2011)
H J Clewell et al.
Toxicological sciences : an official journal of the Society of Toxicology, 123(2), 421-432 (2011-07-29)
Inorganic arsenic (As(i)) is a known human bladder carcinogen. The objective of this study was to examine the concentration dependence of the genomic response to As(i) in the urinary bladders of mice. C57BL/6J mice were exposed for 1 or 12
Joshua F Robinson et al.
Toxicology and applied pharmacology, 250(2), 117-129 (2010-10-05)
Arsenic (As) and cadmium (Cd) are well-characterized teratogens in animal models inducing embryotoxicity and neural tube defects (NTDs) when exposed during neurulation. Toxicological research is needed to resolve the specific biological processes and associated molecular pathways underlying metal-induced toxicity during
Karen D Bradham et al.
Environmental health perspectives, 119(11), 1629-1634 (2011-07-14)
Assessment of soil arsenic (As) bioavailability may profoundly affect the extent of remediation required at contaminated sites by improving human exposure estimates. Because small adjustments in soil As bioavailability estimates can significantly alter risk assessments and remediation goals, convenient, rapid
William Brattin et al.
Journal of toxicology and environmental health. Part A, 76(7), 458-478 (2013-04-25)
This report summarizes the results of a study to develop an in vitro bioaccessibility (IVBA) extraction technique for estimating the relative bioavailability (RBA) of arsenic (As) in soil. The study was implemented in several steps. In step 1, key variables

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    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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  2. 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/449/386/product-dating-information-mk.pdf

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