Photographers' Formulary Potassium Bromide (100g)

B&H # PHPB100GX MFR # 10-0930 100G
Photographers' Formulary Potassium Bromide (100g)


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Ship Time: 2-4 weeks 

Product Highlights

  • Helps to Prevent Fog During Development
  • Commonly Used as a Restrainer
  • Reduces Contrast, Provides a Warm Tone

You Pay: $5.95

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This is 100g of Potassium Bromide from Photographers' Formulary. It is commonly used as a restrainer in developers, especially those containing hydroquinone, pyrocatechin, or pyrogallol, and helps to prevent fog during development. When used in paper developers, it also reduces contrast and provides a warming effect. Additionally, potassium bromide is used as an ingredient in intensifying and reducing toners, as well as a variety of other photographic solutions.

UPC: 675152930026
Synonyms Bromide
Bromide of potash
Bromide of potassium
Bromide salt of potassium
Appearance White, deliquescent, granular powder
Uses Fog preventer and restrainer in developing solutions
Ingredient in intensifying, reducing, toning, and many other photographic solutions
Chemical Formula KBr
Notes Potassium bromide is the most commonly used restrainer in developing formulas, especially those using hydroquinone, pyrocatechin, or pyrogallol. The addition of potassium bromide usually results in a reduction of contrast and can have a warming effect on image tone when used in paper developers
Weight 3.5 oz / 100 g
Packaging Info
Package Weight 0.28 lb
Box Dimensions (LxWxH) 4.0 x 2.0 x 2.0"


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Photographers' FormularyPotassium Bromide (100g)

(based on 1 review)

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pics do pop now

By lizard

from fulton ,ms

About Me Casual Photographer

Verified Buyer


  • Consistent Reactions


  • Come disc shaped
  • Hard to weigh

Best Uses

  • Developing

Comments about Photographers' Formulary Potassium Bromide (100g):

caffenol developing

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