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71345

Sigma-Aldrich

Sodium carbonate

BioUltra, anhydrous, ≥99.5% (calc. on dry substance, T)

Synonym(s):

Calcined soda, Carbonic acid disodium salt, Soda ash

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About This Item

Linear Formula:
Na2CO3
CAS Number:
497-19-8
Molecular Weight:
105.99
Beilstein/REAXYS Number:
4154566
EC Number:
207-838-8
MDL number:
MFCD00003494
UNSPSC Code:
12161700
PubChem Substance ID:
24886173
NACRES:
NA.25

grade

anhydrous

product line

BioUltra

assay

≥99.5% (calc. on dry substance, T)

form

powder or crystals

impurities

insoluble matter, passes filter test
≤0.001% total nitrogen (N)
≤0.005% total sulfur (as SO4)

loss

≤1.0% loss on drying, 200 °C

pH

~12.0 (25 °C, 1 M in H2O)

mp

851 °C (lit.)

solubility

H2O: 1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤50 mg/kg
phosphate, silicate (as SiO2): ≤50 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤200 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤50 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

1 M in H2O

UV absorption

λ: 260 nm Amax: 0.01
λ: 280 nm Amax: 0.01

SMILES string

O=C(O[Na])O[Na]

InChI

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

InChI key

CDBYLPFSWZWCQE-UHFFFAOYSA-L

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Related Categories

General description

Sodium carbonate is also termed as soda ash. Solvay process uses sodium chloride and limestone to produce sodium carbonate.

Application

Sodium carbonate has been used as a component in BG11 liquid media for cyanobacterial growth and in G625 growth medium for Anabaena flos-aquae. It has also been used to impregnate mixed-cellulose ester (MCE) filter.

Biochem/physiol Actions

Sodium carbonate helps to improve the pretreatment of rice straw and develops delignification process.
Buffer component, may be used for the removal of peripheral membrane proteins.

Other Notes

Salt component in the fractionation of multivalent nucleotides by inorganic salt co-precipitation

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H319

Hazard Classifications

Eye Irrit. 2

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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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Sodium Carbonate: A Versatile Material (2000)
Innovative monitoring of atmospheric gaseous hydrogen fluoride
Dugheri S, et al.
International Journal of Analytical Chemistry, 2016(10) (2016)
Preparation of biogenic gas vesicle nanostructures for use as contrast agents for ultrasound and MRI
Lakshmanan A, et al.
Nature Protocols, 12(10), 2050-2050 (2017)
Antibiotic Disc Assay for Measuring Cell Wall Function in Synechocystis sp. PCC6803
Cheregi O and Funk C
Bio-protocol, 6(24), 283-291 (2016)
Isolation of cyclic AMP by inorganic salt coprecipitation.
P S Chan et al.
Methods in enzymology, 38, 38-41 (1974-01-01)
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