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900505

Sodium carbonate

anhydrous, free-flowing, Redi-Dri™, ReagentPlus®, ≥99.5%

Synonym(s):

Calcined soda, Carbonic acid disodium salt, Soda ash

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500 G

$84.40

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$397.00

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Estimated to ship onApril 06, 2026Details

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About This Item

Linear Formula:
Na2CO3
CAS Number:
497-19-8
Molecular Weight:
105.99
UNSPSC Code:
12352302
NACRES:
NA.21
PubChem Substance ID:
24899511
EC Number:
207-838-8
Beilstein/REAXYS Number:
4154566
MDL number:
MFCD00003494
Assay:
≥99.5%
Grade:
anhydrous
Form:
powder

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InChI key

CDBYLPFSWZWCQE-UHFFFAOYSA-L

InChI

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

SMILES string

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

grade

anhydrous

product line

ReagentPlus®, Redi-Dri™

assay

≥99.5%

form

powder

quality

free-flowing

pH

12 (25 °C, 106 g/L)

pKa (25 °C)

(1) 6.37, (2) 10.25 (carbonic acid)

mp

851 °C (lit.)

application(s)

PFAS testing

Quality Level

100

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1 of 4

This Item
791768900503S2127
Sodium carbonate anhydrous, free-flowing, Redi-Dri™, ReagentPlus®, ≥99.5%

Sigma-Aldrich

900505

Sodium carbonate

Sodium carbonate anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99.5%

Sigma-Aldrich

791768

Sodium carbonate

Sodium carbonate anhydrous, powder or granules, free-flowing, Redi-Dri™, ACS reagent, ≥99.5%

Sigma-Aldrich

900503

Sodium carbonate

Sodium carbonate ReagentPlus®, ≥99.5%

Sigma-Aldrich

S2127

Sodium carbonate

form

powder

form

powder

form

powder or granules

form

powder (granular)

assay

≥99.5%

assay

≥99.5%

assay

≥99.5%

assay

≥99.5%

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

200

grade

anhydrous

grade

ACS reagent, anhydrous

grade

ACS reagent, anhydrous

grade

-

pH

12 (25 °C, 106 g/L)

pH

12 (25 °C, 106 g/L)

pH

12 (25 °C, 106 g/L)

pH

12 (25 °C, 106 g/L)

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
ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H319

Hazard Classifications

Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
0000456827
SLCP9990
SLBX6025
SLCB3056
SLCB9935

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Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.

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