Sodium bicarbonate
SIAL/NIST2191A - NIST® SRM® 2191a, pD Standard
Synonym: Sodium hydrogen carbonate
CAS Number: 144-55-8
Empirical Formula (Hill Notation): CHNaO3
Molecular Weight: 84.01
EC Number: 205-633-8
MDL Number: MFCD00003528
Linear Formula: NaHCO3
Product Type: Chemical
| application(s) | general analytical |
| density | 2.16 g/mL at 25 °C (lit.) |
| form | crystals |
| grade | certified reference material |
| InChI | 1S/CH2O3.Na/c2-1(3)4;/h(H |
| InChI key | UIIMBOGNXHQVGW-UHFFFAOYSA |
| manufacturer/tradename | NIST® |
| packaging | pkg of 30 g |
| pH | 8.3(0.84% solution) |
| pKa (25 °C) | (1) 6.37, (2) 10.25 (carbonic acid) |
| Quality Level | 100  |
| SMILES string | [Na+].OC([O-])=O |
| Application: | Sodium bicarbonate standard reference material (SRM) is intended for preparing buffer solution, used to calibrate electrodes for pD measuring system. |
| Features and Benefits: | • SRM 2191A certified values are correspond to log (1/aD). • The NIST certificate is provided with storage and stability instructions. |
| General description: | Each unit of SRM 2191A contains 30g of sodium bicarbonate. SRM 2191A_cert  SRM 2191A_SDS |
| Legal Information: | NIST is a registered trademark of National Institute of Standards and Technology |
| Legal Information: | SRM is a registered trademark of National Institute of Standards and Technology |
| Other Notes: | Please download a current certificate at nist.gov/SRM for current analytes and certified values. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Density | 2.16 g/mL at 25 °C (lit.) |
| UNSPSC | 41116107 |