Water → Dipotassium imidodisulfate

HRID 1395000

反応式

HRID 1395000 の反応式
[S:1](=[O:5])(=[O:4])([O-:3])[NH2:2].[NH4+:6].[S:7](=[O:11])(=[O:10])([OH:9])[NH2:8].O.[OH-].[K+:14]>>[S:1]([NH:2][S:7]([O-:11])(=[O:10])=[O:9])([O-:3])(=[O:5])=[O:4].[NH4+:8].[NH4+:6].[S:1]([NH:2][S:7]([O-:11])(=[O:10])=[O:9])([O-:3])(=[O:5])=[O:4].[K+:14].[K+:14]

参加物

6

反応物 4

HCID 962WaterHCID 5987Sulfamic AcidHCID 14797Potassium HydroxideHCID 24482Ammonium sulfamate

生成物 2

HCID 166863Imidodisulfuric acid, ammonium salt (1:2)HCID 16213114Dipotassium imidodisulfate収率 118.4%

実験手順

Diammonium imidodisulfate was prepared by adding 114 grams (1.0 mole) of ammonium sulfamate to 97 grams (1.0 mole) of sulfamic acid in a 1-liter beaker. The mixture was heated on a hot plate with constant stirring. At about 130° C. a stirrable slurry was obtained and at about 155° C. an exothermic reaction began, forming a solid. When the solid cooled, it was dissolved in about 375 grams of 45 percent potassium hydroxide. Water was added to bring the total volume to 800 milliliters. The solution was filtered and then heated under vacuum to expel ammonia. Upon cooling, concentrated hydrochloric acid was carefully added to the solution to adjust the mixture to pH 7.5. A precipitate was obtained and upon filtering, about 150 grams of potassium imidodisulfate was obtained.

後処理

  1. temperatureThe mixture was heated on a hot plate with constant stirring
  2. customAt about 130° C. a stirrable slurry was obtained and at about 155° C.
  3. customan exothermic reaction
  4. customforming a solid
  5. temperatureWhen the solid cooled
  6. filtrationThe solution was filtered
  7. temperatureheated under vacuum
  8. temperatureUpon cooling
  9. additionconcentrated hydrochloric acid was carefully added to the solution
  10. customA precipitate was obtained
  11. filtrationupon filtering

出典と根拠

ORDレコード
ord-ac000f4974a4464091ad3d331db322e5
出典データセット
uspto-grants-1980_05
特許番号
US04201687

関連ノート

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