Difference between revisions of "Guanidinium carbonate"
(Created page with "{{Chembox | Name = Guanidinium carbonate | Reference = | IUPACName = Guanidinium carbonate | PIN = | SystematicName = | OtherNames = Diguanidinium carbonate<br>Guanidine, carb...") |
|||
| (5 intermediate revisions by the same user not shown) | |||
| 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 = | + | | SolubleOther = Insoluble in [[acetone]], [[toluene]] |
| Solvent = | | Solvent = | ||
| − | | VaporPressure = | + | | VaporPressure = ~0 mmHg |
}} | }} | ||
| Section3 = {{Chembox Structure | | Section3 = {{Chembox Structure | ||
| Line 112: | Line 112: | ||
==Properties== | ==Properties== | ||
===Chemical=== | ===Chemical=== | ||
| − | Guanidinium carbonate reacts with acids to release carbon dioxide and water. | + | Guanidinium carbonate reacts with acids to release carbon dioxide and water, yielding guanidinium ions. |
| + | |||
| + | :(C(NH<sub>2</sub>)<sub>3</sub>)<sub>2</sub>CO<sub>3</sub> + H<sup>+</sup> → (C(NH<sub>2</sub>)<sub>3</sub>)<sup>+</sup> + H<sub>2</sub>O + CO<sub>2</sub> | ||
===Physical=== | ===Physical=== | ||
| Line 118: | Line 120: | ||
==Availability== | ==Availability== | ||
| − | Can be purchased online and from chemical | + | Can be purchased online and from chemical suppliers. |
| + | |||
| + | It can also be found in certain hair relaxing products. | ||
==Preparation== | ==Preparation== | ||
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, although if excess carbon dioxide is present, guanidinium bicarbonate will form. | ||
==Projects== | ==Projects== | ||
| − | *Make guanidinium compounds | + | *Make guanidinium compounds (nitrates, chlorides, etc.) |
==Handling== | ==Handling== | ||
| Line 149: | Line 155: | ||
[[Category:Guanidines]] | [[Category:Guanidines]] | ||
[[Category:Carbonates]] | [[Category:Carbonates]] | ||
| + | [[Category:Materials unstable in acidic solution]] | ||
Latest revision as of 17:10, 23 June 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.
