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Merck
CN

71350

Sodium carbonate

puriss. p.a., ACS reagent, anhydrous, ≥99.5% (calc. based 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
EC Number:
207-838-8
UNSPSC Code:
12352300
PubChem Substance ID:
Beilstein/REAXYS Number:
4154566
MDL number:
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InChI key

CDBYLPFSWZWCQE-UHFFFAOYSA-L

InChI

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

SMILES string

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

grade

ACS reagent, puriss. p.a.

assay

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

impurities

≤0.001% total nitrogen (N), ≤0.003% total sulfur (as SO4)

loss

≤0.5% loss on drying, 300 °C

mp

851 °C (lit.)

anion traces

chloride (Cl-): ≤10 mg/kg, phosphate (PO43-): ≤10 mg/kg, silicate (as SiO2): ≤20 mg/kg

cation traces

Ag: ≤5 mg/kg, Al: ≤10 mg/kg, As: ≤0.5 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤50 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: ≤20 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤20 mg/kg, Zn: ≤5 mg/kg

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Biochem/physiol Actions

Buffer component, may be used for the removal of peripheral membrane proteins.

Other Notes

A -D suffix exists for administrative purposes only.
All -D packages are 100% the same product, same quality, same specification as the package sizes previously sold without a -D.

Reagent for the decomposition of silicates by fusion

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Z. Sulcek et al.
Methods of Decomposition in Inorganic Analysis (1989)
R. Bock
Aufschlussmethoden der anorg. & org. Chemie (1972)
Nicola Palomero-Gallagher et al.
The Journal of comparative neurology, 508(6), 906-926 (2008-04-12)
Anterior cingulate cortex (ACC) is involved in emotion, mood, and autonomic regulation. Although a subgenual part of ACC (sACC) may be vulnerable in depression and area 25 is cytologically unique, there are no assessments that contrast this region with pregenual
Eric W C Chan et al.
Pharmacognosy research, 3(3), 178-184 (2011-10-25)
Chlorogenic acid (CGA) or 5-caffeoylquinic acid, was found to be the dominant phenolic compound in leaves of Etlingera elatior (Zingiberaceae). The CGA content of E. elatior leaves was significantly higher than flowers of Lonicera japonica (honeysuckle), the commercial source. In
Alessandra Cincinelli et al.
Bioorganic & medicinal chemistry, 19(6), 1847-1851 (2011-03-08)
A high activity α-carbonic anhydrase (CA, EC 4.2.1.1) has been purified from various tissues of the Antarctic seal Leptonychotes weddellii. The new enzyme, denominated lwCA, has a catalytic activity for the physiologic CO(2) hydration to bicarbonate reaction, similar to that

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