Direkt zum Inhalt
Merck

31432

Sigma-Aldrich

Natriumcarbonat

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., anhydrous, ≥99.8% (calc. to the dried substance)

Synonym(e):

Calcinierte Soda, Kohlensäure Dinatriumsalz, Waschsoda

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About This Item

Lineare Formel:
Na2CO3
CAS-Nummer:
Molekulargewicht:
105.99
Beilstein:
4154566
EG-Nummer:
MDL-Nummer:
UNSPSC-Code:
12352302
PubChem Substanz-ID:

Qualität

ACS reagent
puriss. p.a.

Qualitätsniveau

Agentur

USP/NF
reag. ISO
reag. Ph. Eur.

Assay

≥99.8% (calc. to the dried substance)

Form

coarse powder

Verunreinigungen

residual solvents, complies
≤0.001% total nitrogen (N)
≤0.003% total S (as SO4)
≤0.01% in water insoluble matters

Verlust

≤0.5% loss on drying, 300 °C

pH-Wert

12 (25 °C, 106 g/L)

mp (Schmelzpunkt)

851 °C (lit.)

Anionenspuren

chloride (Cl-): ≤10 mg/kg
phosphate (PO43-): ≤10 mg/kg
silicate (as SiO2): ≤20 mg/kg

Kationenspuren

Ag: ≤5 mg/kg
Al: ≤10 mg/kg
As: ≤0.5 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤50 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤20 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤20 mg/kg
Zn: ≤5 mg/kg
heavy metals: ≤5 ppm (by ICP-OES)

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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Allgemeine Beschreibung

Sodium carbonate (Soda) is a white salt. It can be synthesized by the electrolysis of molten sodium hydroxide or sodium chloride.

Anwendung

Sodium carbonate may be used for the determination of total polyphenolic index of wine products from grape by the Folin-Ciocalteu method. It has been used to compose the ELISA (Enzyme-Linked Immunosorbent Assay) coating buffer. It may be used to prepare the antibody coating buffer for use in IGF-I kinase receptor activation assay (KIRA) assay.

Biochem./physiol. Wirkung

Pufferbestandteil, kann zur Entfernung peripherer Membranproteine eingesetzt werden.

Piktogramme

Exclamation mark

Signalwort

Warning

H-Sätze

Gefahreneinstufungen

Eye Irrit. 2

Lagerklassenschlüssel

13 - Non Combustible Solids

WGK

WGK 1

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable


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