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Merck

13418-M

Sodium carbonate

puriss., meets analytical specification of Ph. Eur., BP, NF, FCC, E500, anhydrous, 99.5-100.5% (calc. to the dried substance)

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:
12352302
NACRES:
NA.21
PubChem Substance ID:
EC Number:
207-838-8
Beilstein/REAXYS Number:
4154566
MDL number:
Assay:
99.5-100.5% (calc. to the dried substance)
Form:
powder
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Quality Level

grade

puriss.

assay

99.5-100.5% (calc. to the dried substance)

form

powder

quality

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

impurities

alkali hydroxides and bicarbonates, complies, residual solvents, complies, ≤5 ppm heavy metals (as Pb)

loss

≤0.5% loss on drying, 300 °C, <0.5% loss on drying, 105°C, 4hrs

pH

12 (25 °C, 106 g/L)

mp

851 °C (lit.)

anion traces

chloride (Cl-): ≤100 ppm, sulfate (SO42-): ≤50 ppm

cation traces

As: ≤0.0002%, Cu: ≤0.002%, Fe: ≤0.001%, Hg: ≤0.0001%, Pb: ≤0.0002%, Zn: ≤0.002%

suitability

complies for appearance of solution

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

Biochem/physiol Actions

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


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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



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