The part of the silver halide crystal that is most affected by light when film is exposed is the surface. More specifically, any sensitivity specks that can become metallic silver.
Silver nitrate is added to halide salts to test for the presence of halide ions. When silver nitrate is added, a precipitation reaction occurs where silver halide compounds are formed. The color of the precipitate that forms can help identify the type of halide ion present in the salt.
The word equation for photographic film is: Silver halide crystals + light → Silver metal + halide ions.
Silver nitrate is used in argentometric titrations because it forms insoluble silver chloride, silver bromide, or silver iodide precipitates with halide ions present in the solution. The endpoint of the titration is reached when all the halide ions have reacted with silver ions, forming a visible precipitate. This allows for precise determination of the halide ion concentration in the sample.
Silver nitrate can be used to detect the presence of halide ions (chloride, bromide, iodide) in a solution by forming insoluble silver halide precipitates, which have distinct colors (white for chloride, cream for bromide, and yellow for iodide). It is commonly used in qualitative analysis to identify halide ions and in medical procedures such as the Schirmer's test for the detection of tear production.
Silver-based film stock turns black in a light negative, as it is developed using a chemical process that exposes the film to light and causes the silver halide crystals to darken where they have been exposed, creating the photographic image.
The "salt" you are referring to is actually called silver-halide and are more commonly known as "silver salts". When silver-halide crystals are exposed to light, they form a compound known as "metallic silver"
Silver Halide Silver iodide
silver halide
The "salt" you are referring to is actually called silver-halide and are more commonly known as "silver salts". When silver-halide crystals are exposed to light, they form a compound known as "metallic silver"
All I know is, they change their structure when exposed to light.
Silver nitrate is added to halide salts to test for the presence of halide ions. When silver nitrate is added, a precipitation reaction occurs where silver halide compounds are formed. The color of the precipitate that forms can help identify the type of halide ion present in the salt.
When an alkyl halide reacts with silver nitrate, a substitution reaction takes place where the halide ion is displaced by the silver ion to form a silver halide precipitate. The alkyl group remains unchanged in the reaction.
The product is a silver halide insoluble in water.
The word equation for photographic film is: Silver halide crystals + light → Silver metal + halide ions.
When making photographic film, silver nitrate is treated with halide salts of sodium or potassium to form insoluble silver halide in situ in photographic gelatin, which is then applied to strips of tri-acetate or polyester. AgNO3 + NaCl -------->AgCl(s) + NaNO3 .
The larger the silver halide crystals are, the higher the films speed rating will be. The film will also be easier to overexpose.
Silver nitrate is used in argentometric titrations because it forms insoluble silver chloride, silver bromide, or silver iodide precipitates with halide ions present in the solution. The endpoint of the titration is reached when all the halide ions have reacted with silver ions, forming a visible precipitate. This allows for precise determination of the halide ion concentration in the sample.