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 |