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1.06392

Supelco

Sodium carbonate

anhydrous for analysis EMSURE® ISO

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Synonym(s):
anhydrous soda, Calcined soda, Carbonic acid disodium salt, Soda ash
Linear Formula:
Na2CO3
CAS Number:
497-19-8
Molecular Weight:
105.99
Beilstein:
4154566
MDL number:
MFCD00003494
EC Index Number:
207-838-8

Agency

reag. ISO
suitable for SM 2310
suitable for SM 2320
suitable for SM 4500 - NH3

Quality Level

300

product line

EMSURE®

Assay

≥99.9% dry basis (acidimetric)

form

powder

potency

4090 mg/kg LD50, oral (Rat)

loss

≤1% loss on drying, 300 °C

pH

11.16 (25 °C, 4 g/L in H2O)

mp

851 °C (lit.)

solubility

212.5 g/L

density

2.53 g/cm3 at 20 °C

bulk density

1100 kg/m3

anion traces

chloride (Cl-): ≤0.002%
phosphate (PO43-): ≤0.001%
silicate (as SiO2): ≤0.002%
sulfur compounds (as SO42-): ≤0.005%

cation traces

Al: ≤0.001%
Ca: ≤0.005%
Fe: ≤0.0005%
K: ≤0.01%
Mg: ≤0.0005%
N: ≤0.001%
heavy metals (as Pb): ≤0.0005%

storage temp.

2-30°C

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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Biochem/physiol Actions

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

Analysis Note

Assay (acidimetric; calculated on dried substance): ≥ 99.9 %
Chloride (Cl): ≤ 0.002 %
Phosphate (PO₄): ≤ 0.001 %
Silicate (as SiO₂): ≤ 0.002 %
Total sulfur (as SO₄): ≤ 0.005 %
Total nitrogen (N): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.0005 %
Al (Aluminium): ≤ 0.001 %
Ca (Calcium): ≤ 0.005 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.01 %
Mg (Magnesium): ≤ 0.0005 %
Loss on drying (300 °C): ≤ 1.0 %
Corresponds to ISO

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H319

Hazard Classifications

Eye Irrit. 2

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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