Silver Nitrate → HCID 178418580, compound

HRID 973531Notes

Reaction equation

HRID 973531 reaction equation
[NH:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[N:2]1.[N+]([O-])([O-])=O.[Ag+:14].[Br-].[K+]>O>[NH:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[N:2]1.[Ag:14]

Participants

5

Reactant 3

HCID 24470Silver NitrateHCID 253877Potassium BromideHCID 178418385HCID 178418385, compound

Product 1

HCID 178418580HCID 178418580, compoundYield 1,760.9%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent3×

Conditions

Temperature
50 °C

Procedure

In 1,000 ml of water were dissolved 10 g of gelatin and 6.5 g of benzotriazole and then the solution was stirred at 50° C. A solution of 8.5 g of silver nitrate dissolved in 100 ml of water was added to the foregoing solution over a period of 2 minutes and further a solution of 1.2 g of potassium bromide dissolved in 50 ml of water was added thereto over a period of 2 minutes. By adjsuting the pH of the emulsion thus prepared, excessive salts were precipitated and after removing the salts thus precipitated, the pH of the emulsion was adjusted to 6.0 to provide 200 g of a silver benzotriazole emulsion containing silver bromide.

Workup

  1. additionwas added to the foregoing solution over a period of 2 minutes
  2. additionwas added
  3. customthus prepared
  4. customexcessive salts were precipitated
  5. customafter removing the salts
  6. customthus precipitated

Sources & evidence

ORD record
ord-0ce8b4c0359c4655857bc727f7dda157
Source dataset
uspto-grants-1991_11
Patent number
US05064742

Reaction notes

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