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791768

Sigma-Aldrich

Sodium carbonate

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

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Synonym(s):
Calcined soda, Carbonic acid disodium salt, Soda ash
Linear Formula:
Na2CO3
CAS Number:
Molecular Weight:
105.99
Beilstein:
4154566
EC Number:
MDL number:
NACRES:
NA.21

grade

ACS reagent
anhydrous

Quality Level

Agency

suitable for EPA 300

product line

Redi-Dri

Assay

≥99.5%

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: ≤0.03%
Fe: ≤5 ppm
K: ≤0.005%
Mg: ≤0.005%
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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This Item
13418SX0400900503
Sodium carbonate anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99.5%

Sigma-Aldrich

791768

Sodium carbonate

-
Sodium carbonate puriss., meets analytical specification of Ph. Eur., BP, NF, FCC, E500, anhydrous, 99.5-100.5% (calc. to the dried substance)

Sigma-Aldrich

13418

Sodium carbonate

Essential Grade
Sodium carbonate anhydrous, granular, Meets ACS Specifications GR ACS

Supelco

SX0400

Sodium carbonate

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

Sigma-Aldrich

900503

Sodium carbonate

-
assay

≥99.5%

assay

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

assay

≥99.9% dry basis (acidimetric)

assay

≥99.5%

form

powder

form

powder or crystals

form

powder

form

powder or granules

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

pH

12 (25 °C, 106 g/L)

pH

12 (25 °C, 106 g/L)

pH

11.16 (25 °C, 4 g/L in H2O)

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

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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