1.06391

Supelco

Sodium carbonate decahydrate

for analysis EMSURE® ISO,Reag. Ph Eur

Synonym(s):
Soda, Sodium Carbonate decahydrate, Sodium carbonate decahydrate
Empirical Formula (Hill Notation):
CNa2O3 · 10H2O
CAS Number:
Molecular Weight:
286.14
MDL number:
EC Index Number:
207-838-8

storage conditions

Store at +15°C to +25°C.

Agency/Method

reag. ISO
reag. Ph. Eur.

Quality Level

assay

36.7-40.0% (Na2CO3 basis, acidimetric)
99-102% (acidimetric)

form

solid

potency

4090 mg/kg LD50, oral (Rat)

pH

11-12 (25 °C, 50 g/L in H2O)

mp

33 °C (Elimination of water of crystallisation)

solubility

210 g/L

density

1.44 g/cm3 at 20 °C

bulk density

700‑900 kg/m3

anion traces

chloride (Cl-): ≤0.0005%
phosphate, silicate (as SiO2): ≤0.002%
sulfate (SO42-): ≤0.003%
sulfur compounds (as SO42-): ≤0.003%

cation traces

Al: ≤ 0.0005%
As: ≤ 0.0002%
Ca: ≤ 0.002%
Fe: ≤ 0.0002%
K: ≤ 0.005%
Mg: ≤ 0.0002%
N: ≤ 0.0005%
heavy metals (as Pb): ≤ 0.0005%

storage temp.

15-25°C

InChI

1S/CH2O3.2Na.10H2O/c2-1(3)4;;;;;;;;;;;;/h(H2,2,3,4);;;10*1H2/q;2*+1;;;;;;;;;;/p-2

InChI key

XYQRXRFVKUPBQN-UHFFFAOYSA-L

Related Categories

Analysis Note

Assay (acidimetric, Na₂CO₃): 36.7 - 40.0 %
Assay (acidimetric): 99.0 - 102.0 %
Identity: passes test
Appearance of solution: passes test
Alkali hydroxides and Alkali hydrogen carbonates: passes test
Chloride (Cl): ≤ 0.0005 %
Sulfate (SO₄): ≤ 0.003 %
Phosphate and Silicate (as SiO₂): ≤ 0.002 %
Total sulfur (as SO₄): ≤ 0.003 %
Total nitrogen (N): ≤ 0.0005 %
Heavy metals (as Pb): ≤ 0.0005 %
Al (Aluminium): ≤ 0.0005 %
As (Arsenic): ≤ 0.0002 %
Ca (Calcium): ≤ 0.002 %
Fe (Iron): ≤ 0.0002 %
K (Potassium): ≤ 0.005 %
Mg (Magnesium): ≤ 0.0002 %
Corresponds to ISO, Reag. Ph Eur

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