Calcium carbonate
SIGMA/21061 - BioUltra, precipitated, ≥99.0% (KT)
CAS Number: 471-34-1
Empirical Formula (Hill Notation): CCaO3
Molecular Weight: 100.09
EC Number: 207-439-9
MDL Number: MFCD00010906
Linear Formula: CaCO3
Product Type: Chemical
| λ | 0.1 M in 5 M HCl |
| anion traces | chloride (Cl-): ≤100 mg/kg |
| sulfate (SO42-): ≤200 mg/kg | |
| assay | ≥99.0% (KT) |
| cation traces | As: ≤0.1 mg/kg |
| Ba: ≤50 mg/kg | |
| Bi: ≤5 mg/kg | |
| Cd: ≤5 mg/kg | |
| Co: ≤5 mg/kg | |
| Cr: ≤5 mg/kg | |
| Cu: ≤5 mg/kg | |
| Fe: ≤50 mg/kg | |
| K: ≤50 mg/kg | |
| Li: ≤5 mg/kg | |
| Mg: ≤1000 mg/kg | |
| Mn: ≤100 mg/kg | |
| Mo: ≤5 mg/kg | |
| Na: ≤100 mg/kg | |
| Ni: ≤5 mg/kg | |
| Pb: ≤5 mg/kg | |
| Sr: ≤500 mg/kg | |
| Zn: ≤10 mg/kg | |
| density | 2.93 g/mL at 25 °C (lit.) |
| form | powder |
| impurities | insoluble matter, passes filter test |
| InChI | 1S/CH2O3.Ca/c2-1(3)4;/h(H |
| InChI key | VTYYLEPIZMXCLO-UHFFFAOYSA |
| loss | ≤0.5% loss on drying, 110 °C |
| product line | BioUltra |
| quality | precipitated |
| Quality Level | 100  |
| SMILES string | [Ca++].[O-]C([O-])=O |
| solubility | 5 M HCl: 0.1 M at 20 °C, clear, colorless |
| UV absorption | λ: 260 nm Amax: ≤0.09 |
| λ: 280 nm Amax: ≤0.06 |