Sodium carbonate
SIGMA/71345 - BioUltra, anhydrous, ≥99.5% (calc. on dry substance, T)
Synonym: Calcined soda; Carbonic acid disodium salt; Soda ash
CAS Number: 497-19-8
Empirical Formula (Hill Notation): CNa2O3
Molecular Weight: 105.99
EC Number: 207-838-8
MDL Number: MFCD00003494
Linear Formula: Na2CO3
Product Type: Chemical
| λ | 1 M in H2O |
| anion traces | chloride (Cl-): ≤50 mg/kg |
| phosphate, silicate (as SiO2): ≤50 mg/kg | |
| assay | ≥99.5% (calc. on dry substance, T) |
| 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 | |
| form | powder or crystals |
| grade | anhydrous |
| impurities | insoluble matter, passes filter test |
| ≤0.001% total nitrogen (N) | |
| ≤0.005% total sulfur (as SO4) | |
| InChI | 1S/CH2O3.2Na/c2-1(3)4;;/h |
| InChI key | CDBYLPFSWZWCQE-UHFFFAOYSA |
| loss | ≤1.0% loss on drying, 200 °C |
| mp | 851 °C (lit.) |
| pH | ~12.0 (25 °C, 1 M in H2O) |
| product line | BioUltra |
| Quality Level | 200  |
| SMILES string | O=C(O[Na])O[Na] |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| UV absorption | λ: 260 nm Amax: 0.01 |
| λ: 280 nm Amax: 0.01 |
| Application: | Sodium carbonate has been used as a component in BG11 liquid media for cyanobacterial growth and in G625 growth medium for Anabaena flos-aquae. It has also been used to impregnate mixed-cellulose ester (MCE) filter. |
| Biochem/physiol Actions: | Buffer component, may be used for the removal of peripheral membrane proteins. |
| Biochem/physiol Actions: | Sodium carbonate helps to improve the pretreatment of rice straw and develops delignification process. |
| General description: | Sodium carbonate is also termed as soda ash. Solvay process uses sodium chloride and limestone to produce sodium carbonate. |
| Other Notes: | Salt component in the fractionation of multivalent nucleotides by inorganic salt co-precipitation. |
| Symbol |  GHS07 |
| Signal word | Warning |
| Hazard statements | H319 |
| Precautionary statements | P264 - P280 - P305 + P351 + P338 - P337 + P313 |
| Hazard Codes | Xi |
| Risk Statements | 36 |
| Safety Statements | 22-26 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.5% (calc. on dry substance, T) |
| mp | 851 °C (lit.) |
| UNSPSC | 12161700 |