Firstcall Photographic

Bellini Sodium Carbonate anhydrous - 500g

Bellini Sodium Carbonate anhydrous - 500g - Main image
$6.4 $10 In stock

Category: Film & Film Processing Raw Chemicals

無水碳酸鈉是顯影配方中使用的主要鹼(促進劑)之一,有時也稱為洗滌蘇打、碳酸蘇打或碳酸。它能改善已曝光和未曝光的鹵化銀晶體之間的區別,從而減少顯影過程中的霧翳。


它也可用作調色浴添加劑或定影後的清潔浴。


其分子式為 Na2CO3。


請注意:碳酸鈉加入酸性停顯浴或酸性定影浴時會釋放氣體;此氣體可能導致底片乳劑出現看似水泡的針孔。

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Customer Reviews (4.4 / 5 · 5 reviews)

Sofia T. ★★★★★

This dissolves so cleanly in distilled water with no residue at all, exactly what I need for my developer mixes. My last batch of prints came out with perfect, even tones.

Matthew Y. ★★★★★

Finally a carbonate that doesn't clump up in the container, even after sitting on my shelf for a few weeks. Mixed it into my developer at the usual ratio and it dissolved fast without the gritty residue I've had with other batches. Two rolls through the tank and the contrast is exactly where I want

Steven ★★★★★

This is the second time I've ordered this exact 500g size and it still hasn't clumped, even after sitting half-open in my darkroom for weeks. Dissolves fast with no sediment, which is exactly what I need for my developer stock solutions.