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791768

Sodium carbonate

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

Synonym(s):

Calcined soda, Carbonic acid disodium salt, Soda ash

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About This Item

Linear Formula:
Na2CO3
CAS Number:
497-19-8
Molecular Weight:
105.99
EC Number:
207-838-8
UNSPSC Code:
12352302
NACRES:
NA.21
Beilstein/REAXYS Number:
4154566
MDL number:
MFCD00003494
eCl@ss:
38020205
Assay:
≥99.5%
Grade:
ACS reagent, anhydrous
Form:
powder
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Quality Level

100

grade

ACS reagent, anhydrous

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)

application(s)

PFAS testing

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

Application


  • Denitrification mechanism of NaOH in the presence of carbon.: Explores the interaction between sodium carbonate and other chemicals in environmental applications, particularly focusing on denitrification processes important for water treatment (Li et al., 2005).

  • Evaluation of capillary electrophoresis for determining the concentration of dissolved silica in geothermal brines.: Discusses the role of sodium carbonate in modifying sample pH for capillary electrophoresis, essential for accurate measurement of silica in complex geothermal fluids (Santoyo et al., 2005).

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

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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
SLCC4320
SLCF4433
SLCD0869
SLBX8358
SLBZ7969

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Articles

Redi-Dri™ – The World of Free-flowing Hygroscopic Products

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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This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.

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Global Trade Item Number

SKUGTIN
791768-2.5KG04061832950341
791768-6X1KG04061832950570
791768-12KG04061832950310
791768-1KG04061832950334
791768-500G04061832950358