71361

Sodium carbonate hydrate

purum p.a., ≥99.0% (calc. based on dry substance, T), 9-10 mol/mol water

• Synonym(s): Soda
• Linear Formula: Na₂CO₃ · aq
• CAS Number: 24551-51-7
• Molecular Weight: 105.99 (anhydrous basis)
• EC Number: 207-838-8
• MDL number: MFCD00149178
• UNSPSC Code: 12352300
• PubChem Substance ID: 329763207
• NACRES: NA.21

Properties

• grade: purum p.a.
• Assay: ≥99.0% (calc. based on dry substance, T)
• form: crystals and lumps; fine crystals
• impurities: 9-10 mol/mol water
• pH: 12 (25 °C, 143 g/L)
• solubility: water: soluble 142.3 g/L at 20 °C
• anion traces: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• cation traces: Ca: ≤50 mg/kg; Cd: ≤50 mg/kg; Co: ≤50 mg/kg; Cu: ≤50 mg/kg; Fe: ≤50 mg/kg; K: ≤100 mg/kg; Ni: ≤50 mg/kg; Pb: ≤50 mg/kg; Zn: ≤50 mg/kg
• SMILES string: [Na+].[Na+].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[O-]C([O-])=O
• 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

General description

Sodium carbonate decahydrate is a hydrated form of Na₂CO₃. IR spectral investigations suggest its spectra is similar to the heptahydrate form. It undergoes thermal dehydration to monohydrate form in a batch, fluidized bed reactor.

Application

Sodium carbonate decahydrate may be used to investigate the hydrolysis of poly(β-cyclodextrin-co-citric acid) (CDP, water-insoluble polymer). Polymeric hydrolysates were investigated by HPLC.

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H319
• Precautionary Statements: P264 - P280 - P305 + P351 + P338 - P337 + P313
• Hazard Classifications: Eye Irrit. 2
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable