Hydrogen Bromide → Silver bromide

HRID 1415095Notes

Reaction equation

HRID 1415095 reaction equation
[OH:1][C:2]([CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH3:12])=[O:3].C(O)(=O)CCCCCCCCCCC.[Ag:27].[N+]([O-])([O-])=O.[Ag+].[BrH:33]>C(OCCCC)(=O)C>[O-:3][C:2]([CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH3:12])=[O:1].[Ag+:27].[Ag:27][Br:33]

Participants

8

Reactant 5

HCID 260Hydrogen BromideHCID 2969Decanoic Acid2×HCID 3893Lauric AcidHCID 23954SilverHCID 24470Silver Nitrate

Product 2

HCID 66199Silver bromideHCID 21226017Silver(1+) decanoate

Reagents, catalysts & solvents 1

HCID 31272Butyl AcetateSolvent

Procedure

A solution of 8.5 g of capric acid dissolved in 100 ml of butyl acetate was kept to 5° C, and 0.7 g of an N-halo compound of the invention (Compound 2) was emulsified in the solution with stirring. To the emulsion, 50 ml of an aqueous solution of silver ammine complex salt containing 8.5 g of silver nitrate (5° C) was added dropwise over a period of 30 seconds to react the capric acid, hydrogen bromide and silver ion and to form silver caprate and silver bromide, simultaneously. After removing the water layer, the butyl acetate layer containing the silver caprate and silver bromide was dispersed in 120 g of a 15 wt% isopropanol solution of polyvinyl butyral using a mixer to provide a polymer dispersion of the silver salt. To the polymer dispersion of the silver salt, the following components were added at intervals of 5 minutes at 40° C to provide a coating solution which was then coated on a coated paper in a silver amount of 0.7 g/m2 to obtain a heat developable light-sensitive material (Sample 3).

Workup

  1. customwas kept to 5° C
  2. additionwas added dropwise over a period of 30 seconds

Sources & evidence

ORD record
ord-0b7f45a2c94346b095458496fb1653d6
Source dataset
uspto-grants-1977_01
Patent number
US04003749

Reaction notes

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