Carbon Dioxide → Aminoguanidine Hemisulfate

HRID 1633215Notes

Reaction equation

HRID 1633215 reaction equation
C(=O)(O)[O-].[NH2:5][NH:6][C:7]([NH2:9])=[NH2+:8].[S:10](=[O:14])(=[O:13])([OH:12])[OH:11].C(=O)=O>O>[S:10]([O-:14])([O-:13])(=[O:12])=[O:11].[NH2:5][NH:6][C:7]([NH2:9])=[NH2+:8].[NH2:5][NH:6][C:7]([NH2:9])=[NH2+:8]

Participants

5

Reactant 3

HCID 280Carbon DioxideHCID 1118Sulfuric AcidHCID 178514410HCID 178514410, compound

Product 1

HCID 178514408Aminoguanidine Hemisulfate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent2×

Procedure

Aminoguanidinium bicarbonate (27.2 g of 98.5%, 0.2 mole) was slurried in 150 ml of water. Sulfuric acid (10.2 g of 96%, 0.1 mole) was added over 1/4 hour with the evolution of carbon dioxide. After post-reacting one hour at room temperature, 125 ml of water were vacuum stripped. On cooling a white precipitate formed which was filtered and dried. Obtained were 11 g of product.

Workup

  1. customAfter post-reacting one hour
  2. customat room temperature
  3. temperatureOn cooling a white precipitate
  4. customformed which
  5. filtrationwas filtered
  6. customdried
  7. customObtained

Sources & evidence

ORD record
ord-d7628df8312e40d286125a3b49119f70
Source dataset
uspto-grants-1984_10
Patent number
US04479917

Reaction notes

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