1.06391

Sodium carbonate decahydrate

for analysis EMSURE^® ISO,Reag. Ph Eur

• Synonym(s): Sodium carbonate decahydrate, Soda, Sodium Carbonate decahydrate
• Empirical Formula (Hill Notation): CNa₂O₃ · 10H₂O
• CAS Number: 6132-02-1
• Molecular Weight: 286.14
• MDL number: MFCD00149178
• UNSPSC Code: 12352302
• EC Index Number: 207-838-8
• NACRES: NA.21

Properties

• agency: reag. ISO; reag. Ph. Eur.
• Quality Level: 300
• product line: EMSURE^®
• assay: 99-102% (acidimetric)
• form: solid
• potency: 4090 mg/kg LD₅₀, oral (Rat)
• concentration: 36.7-40.0% (Na₂CO₃ basis, acidimetric)
• 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 (SO₄^2-): ≤0.003%; sulfur compounds (as SO₄^2-): ≤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

Description

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

Legal Information

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

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H319
• pcodes: P264 - P280 - P305 + P351 + P338 - P337 + P313
• Hazard Classifications: Eye Irrit. 2
• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable