71345

Sigma-Aldrich

Sodium carbonate

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

Synonym(s):
Calcined soda, Carbonic acid disodium salt, Soda ash
Linear Formula:
Na2CO3
CAS Number:
Molecular Weight:
105.99
Beilstein/REAXYS Number:
4154566
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.25

Quality Level

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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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

Signal Word

Warning

Hazard Statements

Precautionary Statements

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

NONH for all modes of transport

WGK Germany

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Sodium Carbonate: A Versatile Material (2000)
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)
Innovative monitoring of atmospheric gaseous hydrogen fluoride
Dugheri S, et al.
International Journal of Analytical Chemistry, 2016(10) (2016)
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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