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900504

Sigma-Aldrich

Sodium carbonate

anhydrous, free-flowing, Redi-Dri, ACS reagent (primary standard), 99.95-100.05% dry basis

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Synonym(s):
Calcined soda, Carbonic acid disodium salt, Soda ash
Linear Formula:
Na2CO3
CAS Number:
Molecular Weight:
105.99
Beilstein/REAXYS Number:
4154566
EC Number:
MDL number:
PubChem Substance ID:

grade

ACS reagent (primary standard)
anhydrous

Quality Level

agency

suitable for EPA 300

product line

Redi-Dri

assay

99.95-100.05% dry basis

form

powder

quality

free-flowing

impurities

≤0.005% silica
≤0.01% insolubles

loss

≤1.0% loss on heating

pH

12 (25 °C, 106 g/L)

mp

851 °C (lit.)

anion traces

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

cation traces

Ca: ≤0.02%
Fe: ≤5 ppm
K: ≤0.005%
Mg: ≤0.004%
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

InChI key

CDBYLPFSWZWCQE-UHFFFAOYSA-L

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1 of 4

This Item
13418SX0400791768
vibrant-m

900504

Sodium carbonate

-
vibrant-m

13418

Sodium carbonate

Essential Grade
vibrant-m

SX0400

Sodium carbonate

-
vibrant-m

791768

Sodium carbonate

-
form

powder

form

powder or crystals

form

powder

form

powder

assay

99.95-100.05% dry basis

assay

99.5-100.5% (calc. to the dried substance)

assay

≥99.9% dry basis (acidimetric)

assay

≥99.5%

impurities

≤0.005% silica, ≤0.01% insolubles

impurities

alkali hydroxides and bicarbonates, complies, residual solvents, <5 ppm heavy metals (as Pb)

impurities

≤0.01% Insoluble matter

impurities

≤0.005% silica, ≤0.01% insolubles

grade

ACS reagent (primary standard), anhydrous

grade

-

grade

-

grade

ACS reagent, anhydrous

mp

851 °C (lit.)

mp

851 °C (lit.)

mp

851 °C (lit.)

mp

851 °C (lit.)

Biochem/physiol Actions

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

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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25G
Pack Size/Quantity

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1000309185

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