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Merck
CN

71345

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:
Molecular Weight:
105.99
UNSPSC Code:
12161700
NACRES:
NA.25
PubChem Substance ID:
EC Number:
207-838-8
Beilstein/REAXYS Number:
4154566
MDL number:
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grade

anhydrous

Quality Level

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

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

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

Other Notes

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


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pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves



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Antibiotic Disc Assay for Measuring Cell Wall Function in Synechocystis sp. PCC6803
Cheregi O and Funk C
Bio-protocol, 6(24), 283-291 (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)
Sodium Carbonate: A Versatile Material (2000)



Global Trade Item Number

SKUGTIN
71345-250G04061832844381
71345-1KG04061832844374
71345-5KG04061833459713