Difference between revisions of "Guanidinium carbonate"
| Line 64: | Line 64: | ||
| pKa = | | pKa = | ||
| pKb = | | pKb = | ||
| − | | Solubility = 45 g/100 ml (22 °C) | + | | Solubility = 45 g/100 ml (22 °C)<ref>https://www.sigmaaldrich.com/catalog/product/mm/820611</ref> |
| SolubleOther = Insoluble in [[acetone]], [[toluene]] | | SolubleOther = Insoluble in [[acetone]], [[toluene]] | ||
| Solvent = | | Solvent = | ||
| Line 127: | Line 127: | ||
One route involves adding [[sodium carbonate]] to [[guanidinium chloride]]. | One route involves adding [[sodium carbonate]] to [[guanidinium chloride]]. | ||
| − | Solutions of freebase guanidine left in air will rapidly absorb [[carbon dioxide]] from the air to form guanidinium carbonate. | + | Solutions of freebase guanidine left in air will rapidly absorb [[carbon dioxide]] from the air to form guanidinium carbonate, although if excess carbon dioxide is present, guanidinium bicarbonate will form. |
==Projects== | ==Projects== | ||
Revision as of 12:37, 24 February 2019
| Names | |
|---|---|
| IUPAC name
Guanidinium carbonate
| |
| Other names
Diguanidinium carbonate
Guanidine, carbonic acid salt | |
| Properties | |
| C3H12N6O3 (C(NH2)3)2CO3 | |
| Molar mass | 180.168 g/mol |
| Appearance | White solid |
| Odor | Odorless |
| Density | 1.29 g/cm3 (22 °C) |
| Melting point | 231 °C (448 °F; 504 K) (decomposes) |
| Boiling point | Decomposes |
| 45 g/100 ml (22 °C)[1] | |
| Solubility | Insoluble in acetone, toluene |
| Vapor pressure | ~0 mmHg |
| Hazards | |
| Safety data sheet | Sigma-Aldrich |
| Lethal dose or concentration (LD, LC): | |
| LD50 (Median dose)
|
1.045 mg/kg (rat oral) |
| Related compounds | |
| Related compounds
|
Guanidinium chloride Guanidinium nitrate Guanidinium perchlorate Guanidinium sulfate |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Guanidinium carbonate (or Gdm2CO3) is a colorless organic salt, with the formula (C(NH2)3)2CO3.
Contents
Properties
Chemical
Guanidinium carbonate reacts with acids to release carbon dioxide and water, yielding guanidinium ions.
- (C(NH2)3)2CO3 + H+ → (C(NH2)3)+ + H2O + CO2
Physical
Guanidinium carbonate is a slight hygroscopic solid, soluble in water.
Availability
Can be purchased online and from chemical suppliers.
It can also be found in certain hair relaxing products.
Preparation
One route involves adding sodium carbonate to guanidinium chloride.
Solutions of freebase guanidine left in air will rapidly absorb carbon dioxide from the air to form guanidinium carbonate, although if excess carbon dioxide is present, guanidinium bicarbonate will form.
Projects
- Make guanidinium compounds (nitrates, chlorides, etc.)
Handling
Safety
Guanidinium carbonate has low toxicity, though it should be handled with care.
Storage
In closed, air-tight containers.
Disposal
No special disposal is required.
