2006-12-23 00:30:38 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Silver bromide (AgBr).
Silver bromide (AgBr), a soft, pale-yellow, insoluble salt well known (along with other silver halides) for its unusual sensitivity to light. This property has allowed silver halides to become the basis of modern photographic materials. [1] AgBr is widely used in black-and-white photography film
(The classic black and white film would be made using silver bromide which is made from silver nitrate.
Silver nitrate is a chemical compound with chemical formula AgNO3. This nitrate of silver is not the light-sensitive ingredient in photographic film .
When making photographic film, silver nitrate is reacted 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. Photons from sunlight, X-rays or other sources, initiate a chemical chain reaction: when photons strike silver nitrate molecules, they free electrons from the halide ions. These free electrons roam through the crystal and settle in structural imperfections called sensitivity specks. These specks attract positive silver ions, which are then neutralized to form groups of stable silver atoms, creating a latent image that is chemically developed to reveal a photographic image.)
http://en.wikipedia.org/wiki/Silver_bromide
2006-12-23 01:20:24 · answer #1 · answered by Anonymous · 3⤊ 0⤋
Silver Nitrate
AgNO3
2006-12-23 04:33:45 · answer #2 · answered by Ryan C 2 · 0⤊ 1⤋
Silver bromide
2006-12-23 03:45:33 · answer #3 · answered by Geo06 5 · 0⤊ 2⤋
Quinol
2006-12-25 23:09:26 · answer #4 · answered by Mayur D 1 · 0⤊ 0⤋
Many are silver halides such as silver chloride
I am wrong...the later answers of silver bromide are correct.
How many people here on Yahoo! Answers will admit when they are wrong??
2006-12-23 00:33:15 · answer #5 · answered by Mr. G 6 · 0⤊ 2⤋
silver bromide
2006-12-23 17:03:34 · answer #6 · answered by shabbarboy1991 2 · 0⤊ 0⤋
Hypo solution
2006-12-23 00:35:11 · answer #7 · answered by Reasonable 1 · 0⤊ 2⤋
There are several, but a well known one is hydroquinone.
2006-12-23 03:01:28 · answer #8 · answered by Anonymous · 0⤊ 2⤋
silver bromide!!
2006-12-23 01:19:50 · answer #9 · answered by blue angel 3 · 0⤊ 2⤋
SILVER BROMIDE
2006-12-23 01:29:39 · answer #10 · answered by Anonymous · 0⤊ 2⤋