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S6014

Sigma-Aldrich

Sodium bicarbonate

ACS reagent, ≥99.7%

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Synonym(s):
Sodium hydrogen carbonate
Linear Formula:
NaHCO3
CAS Number:
144-55-8
Molecular Weight:
84.01
Beilstein:
4153970
EC Number:
205-633-8
MDL number:
MFCD00003528
UNSPSC Code:
12352300
PubChem Substance ID:
329824559
NACRES:
NA.21

grade

ACS reagent

Quality Level

300

Agency

suitable for EPA 1621
suitable for EPA 300

Assay

≥99.7%
99.7-100.3%

form

powder

impurities

≤0.015% Insoluble matter

pKa (25 °C)

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

density

2.16 g/mL at 25 °C (lit.)

anion traces

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

cation traces

Ca: ≤0.02%
Fe: ≤0.001%
K: ≤0.005%
Mg: ≤0.005%
NH4+: ≤5 ppm
heavy metals: ≤5 ppm (by ICP-OES)

SMILES string

[Na+].OC([O-])=O

InChI

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

InChI key

UIIMBOGNXHQVGW-UHFFFAOYSA-M

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General description

Sodium Bicarbonate, also known as baking soda, is commonly used as a mild base to neutralize acidic spills, regulate pH levels, and counteract the effects of certain acidic toxins in the body. It also acts as a leavening agent by generating CO₂ when reacts with acidic ingredients like vinegar or lemon juice.

Application


  • Contactless conductivity sensor employing moist paper as absorbent for in-situ detection of generated carbon dioxide gas.: This study utilizes sodium bicarbonate in a novel approach for the development of a contactless conductivity sensor. The sensor uses moist paper to absorb CO2 gas generated from sodium bicarbonate, demonstrating its potential for environmental monitoring and analytical applications (Sonsa-Ard et al., 2020).

Sodium bicarbonate is used as a:

  • mild base to neutralize the reaction mixture during the synthesis of 1,2:5,6-Di-O-cyclohexylidene-D-mannitol, and 2,3-Cyclohexylidene-D-glyceraldehyde.
  • precipitating agent in the co-precipitation method in the synthesis of gamma alumina (γ-Al2O3) catalyst during the methanol dehydration reaction to produce Dimethyl ether.
  • a pore-forming agent and CO2 source to enhance the substrate porosity during the formation of a porous poly(ethersulfone) support layer for designing high-performance thin-film composite forward osmosis (TFC-FO) membranes.

Other Notes

Go to Redi-Dri™ Product Listing 792519

Legal Information

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

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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A publication of reliable methods for the preparation of organic compounds.
Hiroki A, et al.
Organic Syntheses, 157 (2011)
Sodium bicarbonate: A review and its uses in dentistry
Sathyasree M, et al.
Indian Journal of Dental Research, 29, 672-677 (2018)
Investigation of different precipitating agents effects on performance of $\gamma$-Al2O3 nanocatalysts for methanol dehydration to dimethyl ether
Seyyed Yaghoob H, et al.
Journal of Industrial and Engineering Chemistry, 20, 4421-4428 (2014)
Reduction of the structure parameter of forward osmosis membranes by using sodium bicarbonate as pore-forming agent
Alireza S, et al.
Langmuir, 37, 7591-7599 (2021)
Effect of different bicarbonates as leavening agents in combination on product characteristics of cookies and cake
Savita S, et al.
Chemical Science Review and Letters, 6, 439-445 (2017)
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