| Company Name: |
Tocris Bioscience
|
| Tel: |
+44 (0) 117 916 3333 |
| Email: |
customerservice@tocris.co.uk |
| Products Intro: |
Cas:144-55-8
ProductName:Sodium hydrogen carbonate
Brand: Tocris Bioscience | Product Number: 3152 | Purity: ≥99%
|
| Company Name: |
Alfa Aesar
|
| Tel: |
1 888 343-8025 Specialty/Bulk |
| Email: |
tech@alfa.com |
| Products Intro: |
Cas:144-55-8
ProductName:Sodium hydrogen carbonate
Brand: Alfa Aesar | Product Number: A17005
|
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| | Sodium Hydrogen Carbonate Basic information |
| | Sodium Hydrogen Carbonate Chemical 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 | | PH | 8.27(1 mM solution);8.22(10 mM solution);8.02(100 mM solution); | | pka | (1) 6.37, (2) 10.25 (carbonic (at 25℃) | | 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) |
| | Sodium Hydrogen Carbonate Usage And Synthesis |
| Chemical Properties |
Sodium bicarbonate is a white solid that is crystalline, but often appears as a fine powder. It has a slightly salty, alkaline taste resembling that of washing soda (sodium carbonate).pH (of freshly prepared 0.1 molar aqueous solution): 8.3 at 77 °F. pH (of saturated solution): 8-9.
| | Uses | Sodium hydrogen carbonate is a source of carbon dioxide and so is used as an ingredient in baking powders, in effervescent salts and beverages, and as a constituent of dry-chemical fire extinguishers. Its slight alkalinity makes it useful in treating gastric or urinary hyperacidity and acidosis. It is also employed in certain industrial processes, as in tanning and the preparation of wool. | | Preparation | Sodium bicarbonate is produced industrially from sodium carbonate:
Na2CO3 + CO2 + H2O → 2 NaHCO3
| | Toxicology | Non-toxic | | storage | If kept cool (room temperature) and dry (an airtight container is recommended to keep out moist air), sodium hydrogen carbonate can be kept without a significant amount of decomposition for at least two or three years. |
| | Sodium Hydrogen Carbonate Preparation Products And Raw materials |
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