Sodium carbonate
SIGALD/223530 - powder, ≥99.5%, ACS reagent
Synonym: Calcined soda; Carbonic acid disodium salt; Soda ash
CAS Number: 497-19-8
Empirical Formula (Hill Notation): CNa2O3
Molecular Weight: 105.99
EC Number: 207-838-8
MDL Number: MFCD00003494
Linear Formula: Na2CO3
Product Type: Chemical
agency | suitable for EPA 300 |
suitable for SM 2310 | |
suitable for SM 2320 | |
suitable for SM 4500 - NH3 | |
anion traces | chloride (Cl-): ≤0.001% |
phosphate (PO43-): ≤0.001% | |
sulfur compounds (as SO42-): ≤0.003% | |
assay | ≥99.5% |
cation traces | Ca: ≤0.03% |
Fe: ≤5 ppm | |
heavy metals: ≤5 ppm (by ICP-OES) | |
K: ≤0.005% | |
Mg: ≤0.005% | |
form | powder |
grade | ACS reagent |
impurities | ≤0.005% silica |
≤0.01% insolubles | |
InChI | 1S/CH2O3.2Na/c2-1(3)4;;/h |
InChI key | CDBYLPFSWZWCQE-UHFFFAOYSA |
loss | ≤1.0% loss on heating |
mp | 851 °C (lit.) |
pH | 12 (25 °C, 106 g/L) |
Quality Level | 200 ![]() |
SMILES string | O=C(O[Na])O[Na] |
Application: | Sodium carbonate can be used: • As a catalyst in the aldol condensation of aldehydes with ketones in the synthesis of chalcone and azachalcone. • As a pH stabilizer agent in the synthesis of FeO-NPs (iron oxide nanoparticles) in the presence of cymbopogon citratus as a reducing agent. • As a base in the Pd-catalyzed Suzuki coupling reactions. • As a base in the transition metal free Suzuki coupling reaction of aryl halides and arylboronic acids to form biaryls using water as a solvent and TBAB (tetrabutylammonium bromide) as a phase-transfer catalyst. |
Biochem/physiol Actions: | Buffer component, may be used for the removal of peripheral membrane proteins. |
General description: | Sodium carbonate (soda ash) is an inorganic chemical compound. It is used in the synthesis of chemicals, detergent formulations, flue gas desulfurization, and paper and pulp production. |
Legal Information: | Redi-Dri is a trademark of Sigma-Aldrich Co. LLC |
Other Notes: | Go to Redi-Dri™ Product Listing 791768 ![]() |
Packaging: | 1 kg in poly bottle |
Packaging: | 2.5, 12 kg in poly drum |
Packaging: | 500 g in poly bottle |
Symbol | ![]() |
Signal word | Warning |
Hazard statements | H319 |
Precautionary statements | P264 - P280 - P305 + P351 + P338 - P337 + P313 |
Hazard Codes | Xi |
Risk Statements | 36 |
Safety Statements | 22-26 |
RIDADR | NONH for all modes of transport |
WGK Germany | WGK 1 |
Flash Point(F) | Not applicable |
Flash Point(C) | Not applicable |
Purity | ≥99.5% |
mp | 851 °C (lit.) |
UNSPSC | 12352300 |