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Merck
CN

S6139

Sodium carbonate

ACS reagent, ≥99.5% dry basis

Synonym(s):

Calcined soda, Carbonic acid disodium salt, Soda ash

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About This Item

Linear Formula:
Na2CO3
CAS Number:
Molecular Weight:
105.99
EC Number:
207-838-8
UNSPSC Code:
12352300
MDL number:
Beilstein/REAXYS Number:
4154566
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InChI

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

InChI key

CDBYLPFSWZWCQE-UHFFFAOYSA-L

SMILES string

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

grade

ACS reagent

assay

≥99.5% dry basis

impurities

≤0.001% Nitrogen compounds (as N), ≤0.005% Silica (SiO2), ≤0.01% Ammonium hydroxide precipitate, ≤0.01% Insoluble matter

loss

≤1.0% loss on heating, 285°C

mp

851 °C (lit.)

anion traces

chloride (Cl-): ≤0.001%, phosphate (PO43-): ≤0.001%, sulfur compounds (as SO42-): ≤0.003%

cation traces

Ca: ≤0.03%, Ca and Mg precipitate: ≤0.01%, Fe: ≤5 ppm, K: ≤0.005%, Mg: ≤0.005%, heavy metals (as Pb): ≤5 ppm

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Biochem/physiol Actions

Buffer component, may be used for the removal of peripheral membrane proteins.

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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