Sodium carbonate
SIGALD/900504 - anhydrous, free-flowing, Redi-Dri™, ACS reagent (primary standard), 99.95-100.05% dry basis
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
The Redi-Dri™ packaging system eliminates the common issue of clumping that is noted with many hygroscopic salts and buffers and provides free-flowing, ready-to- use material at all times.
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 900504-500G
This image depicts SKU: 900504-500G
| agency | suitable for EPA 300 |
| anion traces | chloride (Cl-): ≤0.001% |
| phosphate (PO43-): ≤0.001% | |
| sulfur compounds (as SO42-): ≤0.003% | |
| assay | 99.95-100.05% dry basis |
| cation traces | Ca: ≤0.02% |
| Fe: ≤5 ppm | |
| heavy metals: ≤5 ppm (by ICP-OES) | |
| K: ≤0.005% | |
| Mg: ≤0.004% | |
| form | powder |
| grade | ACS reagent (primary standard) |
| anhydrous | |
| impurities | ≤0.005% silica |
| ≤0.01% insolubles | |
| InChI | 1S/CH2O3.2Na/c2-1(3)4;;/h |
| InChI key | CDBYLPFSWZWCQE-UHFFFAOYSA |
| loss | ≤1.0% loss on heating |
| mp | 851 °C (lit.) |
| pH | 12 (25 °C, 106 g/L) |
| product line | Redi-Dri™ |
| quality | free-flowing |
| Quality Level | 100  |
| SMILES string | O=C(O[Na])O[Na] |
| Biochem/physiol Actions: | Buffer component, may be used for the removal of peripheral membrane proteins. |
| Legal Information: | Redi-Dri is a trademark of Sigma-Aldrich Co. LLC |
| Packaging: | 2.5 kg in poly drum |
| Packaging: | 500 g in poly bottle |
| Symbol |  GHS07 |
| Signal word | Warning |
| Hazard statements | H319 |
| Precautionary statements | P264 - P280 - P305 + P351 + P338 - P337 + P313 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | 99.95-100.05% dry basis |
| mp | 851 °C (lit.) |
| UNSPSC | 12352300 |