Guanidinium carbonate

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Guanidinium carbonate
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):
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.

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.

References

  1. https://www.sigmaaldrich.com/catalog/product/mm/820611

Relevant Sciencemadness threads