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401676

Sigma-Aldrich

Sodium hydrogencarbonate

−40-+140 mesh, ≥95%

Synonym(s):

Sodium bicarbonate

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About This Item

Linear Formula:
NaHCO3
CAS Number:
144-55-8
Molecular Weight:
84.01
Beilstein:
4153970
EC Number:
205-633-8
MDL number:
MFCD00003528
UNSPSC Code:
12352302
PubChem Substance ID:
329755935
NACRES:
NA.55
Assay:
≥95%
form:
powder or crystals
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Quality Level

100

Assay

≥95%

form

powder or crystals

impurities

2-5% Na2CO3

particle size

−40-+140 mesh

pKa (25 °C)

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

density

2.16 g/mL at 25 °C (lit.)

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 hydrogencarbonate commonly known as sodium bicarbonate is a white crystalline solid or powder. A study of the crystalline structure shows that the bicarbonate ion has C2v symmetry.[1] Ruthenium catalyzed hydrogenation of sodium bicarbonate to form sodium formate has been reported.[2]

Application

Sodium hydrogencarbonate (sodium bicarbonate) may be used in the following processes:
  • As an alkalizing agent for treating metabolic acidosis.[3]
  • For buffering local anesthetics (LA).[3]
  • To facilitate the oxidation of styrene and cyclohexene.[4]
  • As a medium to fabricate graphene hydrogel.[5]

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKBX7064V
MKBT7784V
MKBP8798V
MKBP2563V
MKBL3017V

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The crystal structure of sodium bicarbonate.
Sass RL and Scheuerman RF.
Acta Crystallographica, 15(1), 77-81 (1962)
Graphene aerogel prepared by thermal evaporation of graphene oxide suspension containing sodium bicarbonate.
Yang S, et al.
Journal of Material Chemistry A, 3(15), 7950-7958 (2015)
Sodium bicarbonate assisted oxidation, by H2O2, of styrene and cyclohexene using polymer grafted dioxidomolybdenum (VI) complex as a catalyst.
Maurya MR and Kumar N.
J. Mol. Catal. A: Chem., 406, 204-212 (2015)
Effect of Sodium Bicarbonate-buffered Lidocaine on the Success of Inferior Alveolar Nerve Block for Teeth with Symptomatic Irreversible Pulpitis: A Prospective, Randomized Double-blind Study.
Saatchi M, et al.
Journal of Endodontics, 41(1), 33-35 (2015)
Shay P McGuinness et al.
Critical care medicine, 41(7), 1599-1607 (2013-05-21)
Cardiac surgery-associated acute kidney injury occurs in up to 50% of patients and is associated with increased mortality and morbidity. This study aimed to discover if perioperative urinary alkalinization with sodium bicarbonate infusion reduces the prevalence of cardiac surgery-associated acute
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