Sodium bicarbonate , GR,≥99.8% , 144-55-8
Synonym(s):
Sodium bicarbonate;Sodium hydrogen carbonate;Sodium bicarbonate solution;aqueous sodium bicarbonate;soda bicarbonate
CAS NO.：144-55-8
Empirical Formula: CHNaO3
Molecular Weight: 84.01
MDL number: MFCD00003528
EINECS: 205-633-8
| Pack Size | Price | Stock | Quantity |
| 500G | RMB39.20 | In Stock |
|
| 2.5kg | RMB157.60 | In Stock |
|
| others | Enquire |
PRODUCT Properties
| Melting point: | >300 °C(lit.) |
| Boiling point: | 851°C |
| Density | 2.16 g/mL at 25 °C (lit.) |
| refractive index | 1.500 |
| storage temp. | 2-8°C |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| form | solution (7.5%) |
| color | White |
| Specific Gravity | 2.159 |
| PH Range | 7.8 - 8.2 |
| pka | (1) 6.37, (2) 10.25 (carbonic (at 25℃) |
| PH | 8.27(1 mM solution);8.22(10 mM solution);8.02(100 mM solution); |
| Odor | Odorless |
| Water Solubility | 9 g/100 mL (20 ºC) |
| Decomposition | 50 °C |
| Merck | 14,8583 |
| BRN | 4153970 |
| BCS Class | 1 |
| Stability: | Stable. |
| LogP | -4.010 (est) |
| CAS DataBase Reference | 144-55-8(CAS DataBase Reference) |
| EPA Substance Registry System | Sodium bicarbonate (144-55-8) |
Description and Uses
Sodium bicarbonate, which is the compound commonly called baking soda, exists as a white, odorless, crystalline solid. It occurs naturally as the mineral nahcolite, which derives its name from its chemical formula by replacing the “3” in NaHCO3 with the ending “lite.” The world’s main source of nahcolite is the Piceance Creek Basin in western Colorado, which is part of the larger Green River formation. Sodium bicarbonate is extracted using solution mining by pumping hot water through injection wells to dissolve the nahcolite from the Eocene beds where it occurs 1,500 to 2,000 feet below the surface. The dissolved sodium bicarbonate is pumped to the surface where it is treated to recover NaHCO3 from solution. Sodium bicarbonate can also be produced from the trona deposits, which is a source of sodium carbonates (see Sodium Carbonate).
sodium bicarbonate (baking soda) is an inorganic salt used as a buffering agent and a pH adjuster, it also serves as a neutralizer. It is used in skin-smoothing powders.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H319-H303 |
| Precautionary statements | P264-P280i-P305+P351+P338-P337+P313 |
| Safety Statements | 24/25 |
| WGK Germany | 1 |
| RTECS | VZ0950000 |
| TSCA | Yes |
| HS Code | 28363000 |
| Hazardous Substances Data | 144-55-8(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 4220 mg/kg |
