Sodium carbonate decahydrate

CNa₂O₃ · 10H₂O

286.14

MFCD00149178

207-838-8

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

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

reag. ISO
reag. Ph. Eur.

300

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

solid

4090 mg/kg LD₅₀, oral (Rat)

11-12 (25 ℃, 50 g/L in H₂O)

33 ℃ (Elimination of water of crystallisation)

210 g/L

1.44 g/cm³ at 20 ℃

700‑900 kg/m³

chloride (Cl^-): ≤0.0005%
phosphate, silicate (as SiO₂): ≤0.002%
sulfate (SO₄^2-): ≤0.003%
sulfur compounds (as SO₄^2-): ≤0.003%

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%

15-25℃

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

XYQRXRFVKUPBQN-UHFFFAOYSA-L

GHS07

Warning

H319

P264 - P280 - P305 + P351 + P338 - P337 + P313

Eye Irrit. 2

13 - Non Combustible Solids

WGK 1