71345

Sodium carbonate

BioUltra, anhydrous, ≥99.5% (calc. on dry substance, T)

• Synonym(s): Calcined soda, Carbonic acid disodium salt, Soda ash
• Linear Formula: Na₂CO₃
• CAS Number: 497-19-8
• Molecular Weight: 105.99
• UNSPSC Code: 12161700
• NACRES: NA.25
• PubChem Substance ID: 24886173
• EC Number: 207-838-8
• Beilstein/REAXYS Number: 4154566
• MDL number: MFCD00003494

Properties

• Product Name: Sodium carbonate, BioUltra, anhydrous, ≥99.5% (calc. on dry substance, T)
• InChI key: CDBYLPFSWZWCQE-UHFFFAOYSA-L
• InChI: 1S/CH2O3.2Na/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2
• SMILES string: O=C(O[Na])O[Na]
• grade: anhydrous
• product line: BioUltra
• assay: ≥99.5% (calc. on dry substance, T)
• form: powder or crystals
• impurities: insoluble matter, passes filter test; ≤0.001% total nitrogen (N); ≤0.005% total sulfur (as SO₄)
• loss: ≤1.0% loss on drying, 200 °C
• pH: ~12.0 (25 °C, 1 M in H₂O)
• mp: 851 °C (lit.)
• solubility: H₂O: 1 M at 20 °C, clear, colorless
• anion traces: chloride (Cl^-): ≤50 mg/kg; phosphate, silicate (as SiO₂): ≤50 mg/kg
• cation traces: Al: ≤5 mg/kg; As: ≤0.1 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤200 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; K: ≤50 mg/kg; Li: ≤5 mg/kg; Mg: ≤50 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Sr: ≤5 mg/kg; Zn: ≤5 mg/kg
• λ: 1 M in H₂O
• UV absorption: λ: 260 nm A_max: 0.01; λ: 280 nm A_max: 0.01
• Quality Level: 200

Description

Application

Sodium carbonate has been used as a component in BG11 liquid media for cyanobacterial growth[1] and in G625 growth medium for Anabaena flos-aquae.[2] It has also been used to impregnate mixed-cellulose ester (MCE) filter.[3]

Biochem/physiol Actions

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

Sodium carbonate helps to improve the pretreatment of rice straw and develops delignification process.[4]

General description

Sodium carbonate is also termed as soda ash. Solvay process uses sodium chloride and limestone to produce sodium carbonate.[5]

Other Notes

Salt component in the fractionation of multivalent nucleotides by inorganic salt co-precipitation.

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: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Gloves