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451614

Sigma-Aldrich

Natriumcarbonat

anhydrous, powder, 99.999% trace metals basis

Synonym(e):

Calcinierte Soda, Kohlensäure Dinatriumsalz, Waschsoda

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5 G
€ 83,60
25 G
€ 289,00
50 G
€ 398,00

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5 G
€ 83,60
25 G
€ 289,00
50 G
€ 398,00

About This Item

Lineare Formel:
Na2CO3
CAS-Nummer:
497-19-8
Molekulargewicht:
105.99
Beilstein:
4154566
EG-Nummer:
207-838-8
MDL-Nummer:
MFCD00003494
UNSPSC-Code:
12352302
PubChem Substanz-ID:
24868638
NACRES:
NA.23

€ 83,60

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Qualität

anhydrous

Qualitätsniveau

200

Assay

99.999% trace metals basis

Form

powder

Verunreinigungen

≤15.0 ppm Trace Metal Analysis

mp (Schmelzpunkt)

851 °C (lit.)

Löslichkeit

soluble 217 g/L at 20 °C (completely)

SMILES String

O=C(O[Na])O[Na]

InChI

1S/CH2O3.2Na/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2

InChIKey

CDBYLPFSWZWCQE-UHFFFAOYSA-L

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Verwandte Kategorien

Anwendung

Natriumcarbonat kann als Folgendes verwendet werden:

  • Poreninduktionsmittel für die Synthese von Fe-basierten Sauerstoffreduktionskatalysatoren.
  • Als alkalisches, festes Sorptionsmittel zum Einfangen von CO2 in Abgasen.
  • Als Vorläufer für die Synthese von stark magnesiumhaltigen Calciten in der reinen Phase.
Es kann auch zum Modifizieren der internen Struktur des ZSM-5-Katalysators zum Einleiten von Methanol in Benzinreaktionen eingesetzt werden.

Biochem./physiol. Wirkung

Pufferbestandteil, kann zur Entfernung peripherer Membranproteine eingesetzt werden.

Piktogramme

Exclamation mark
GHS07

Signalwort

Warning

H-Sätze

H319

Gefahreneinstufungen

Eye Irrit. 2

Lagerklassenschlüssel

13 - Non Combustible Solids

WGK

WGK 1

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

dust mask type N95 (US), Eyeshields, Gloves

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
0000383674
0000383671
0000383669
0000360035
0000336227

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Natriumcarbonat powder, ≥99.5%, ACS reagent

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Dextrose 97.5-102.0% anhydrous basis, meets EP, BP, JP, USP testing specifications

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Questions

1–2 of 2 Questions  

  1. 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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  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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