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Key Documents

13433

Sigma-Aldrich

Sodium bicarbonate

puriss., meets analytical specification of Ph. Eur., BP, USP, FCC, E500, 99.0-100.5%, powder

Synonym(s):

Sodium hydrogen carbonate

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About This Item

Linear Formula:
NaHCO3
CAS Number:
Molecular Weight:
84.01
Beilstein:
4153970
EC Number:
MDL number:
UNSPSC Code:
12352302
eCl@ss:
38020213
PubChem Substance ID:
NACRES:
NA.21
form:
powder

grade

puriss.

Quality Level

Assay

99.0-100.5%

form

powder

quality

meets analytical specification of Ph. Eur., BP, USP, FCC, E500

impurities

ammonia (NH3), in accordance
organic volatile impurities, complies
residual solvents, complies
water-insoluble matter, complies
≤0.002% ammonium (NH4), complies

loss

≤0.2% loss on drying (silica gel)

pH

≤8.6 (20 °C, 5%)

pKa (25 °C)

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

density

2.16 g/mL at 25 °C (lit.)

anion traces

carbonate (CO32-): in accordance
chloride (Cl-): ≤100 mg/kg
sulfate (SO42-): ≤100 mg/kg

cation traces

Al: ≤0.5 mg/kg
As: ≤2 mg/kg
Ca: ≤100 mg/kg
Fe: ≤10 mg/kg
Hg: ≤1 mg/kg
K: ≤100 mg/kg
Pb: ≤2 mg/kg

suitability

complies for appearance of solution

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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Application

Sodium bicarbonate may be involved in the fabrication of silica based monolith columns which can be used in capillary electrochromatography. It can also be used to maintain the pH of the column for the separation of proteins via ion exchange displacement chromatography.

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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