Firstcall Photographic

Bellini Potassium Bromide -250g

Bellini Potassium Bromide -250g - Main image
$20.3 $29 In stock

Category: Film & Film Processing Raw Chemicals

溴化鉀在許多黑白顯影劑配方中用作抑制劑,特別是那些含有對苯二酚、鄰苯二酚或焦酚的配方。它能改善已曝光和未曝光的鹵化銀晶體之間的區分,從而減少顯影過程中的霧霾。


當用於紙張顯影劑時,它還能降低對比度並提供暖色效果。


它也可用作漂白劑添加劑或調色劑添加劑。


其分子式為 KBr。

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美國 · 退貨期限(簽收後天數): 30. 退貨方式: 郵寄退貨. 退貨運費: 賣家承擔.

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Customer Reviews (5.0 / 5 · 5 reviews)

Eva D. ★★★★★

My last batch of prints has noticeably cleaner highlights since I started adding this to my hydroquinone developer. The 250g quantity is more than enough for someone who mixes chemistry regularly, and it dissolves without leaving any residue in the stock solution.

Madison A. ★★★★★

This 250g bottle will last me ages, and the powder dissolves cleanly into solution without any sediment. It's done exactly what I needed as a restrainer in my pyrocatechin mix, keeping the highlights from blowing out while the shadows stay rich.

Benjamin ★★★★★

I’ve been mixing my own D-76 for a while, and this potassium bromide gives me much better control over fog and contrast with the hydroquinone. The 250g bag will last a good while for small-batch developing.