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Photographers' Formulary Potassium Bromide - 1 Lb.

B&H # PHPBLBX Mfr # 10-0930 1LB
In Stock
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You Pay: $9.95
Synonyms Bromide
Bromide of potash
Bromide of potassium
Bromide salt of potassium
Appearance White, deliquescent, granular powder
Odorless
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

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Photographers' FormularyPotassium Bromide - 1 Lb.
 
5.0

(based on 2 reviews)

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5.0

Everything was as it should be.

By timtlc

from Cold Spring, NY

About Me Pro Photographer

Verified Buyer

Pros

    Cons

      Best Uses

      • Developing

      Comments about Photographers' Formulary Potassium Bromide - 1 Lb.:

      used it for anti fog warmth, and a touch more contrast in paper developer. It worked as it should.

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      (1 of 1 customers found this review helpful)

       
      5.0

      Excellent value restrainer

      By Matt Shirley

      from Baltimore, MD

      About Me Photo Enthusiast

      Verified Buyer

      Pros

      • Cheap
      • Effective
      • Pure

      Cons

      • Clumpy

      Best Uses

      • Darkroom

      Comments about Photographers' Formulary Potassium Bromide - 1 Lb.:

      The crystals are quite variable in size, but if you have a mortal and pestle you can grind them for more accurate weighing. I'm using KBr as a restrainer in caffenol (instant coffee, ascorbic acid, and washing soda) with excellent results.

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