S6014
Sodium bicarbonate
ACS reagent, ≥99.7%
Synonym(s):
Sodium hydrogen carbonate
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About This Item
Linear Formula:
NaHCO3
CAS Number:
Molecular Weight:
84.01
UNSPSC Code:
12352302
NACRES:
NA.21
PubChem Substance ID:
EC Number:
205-633-8
Beilstein/REAXYS Number:
4153970
MDL number:
Assay:
≥99.7%, 99.7-100.3%
Grade:
ACS reagent
Form:
powder
grade
ACS reagent
Quality Level
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
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
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.
- 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).
Other Notes
Legal Information
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
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flash_point_f
Not applicable
flash_point_c
Not applicable
Storage Class
11 - Combustible Solids
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Sodium bicarbonate: A review and its uses in dentistry
Sathyasree M, et al.
Indian Journal of Dental Research, 29, 672-677 (2018)
A publication of reliable methods for the preparation of organic compounds.
Hiroki A, et al.
Organic Syntheses, 157 (2011)
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)