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TF-4 vs Ilford Rapid Fixer.

norm123

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Hi
I was thinking that TF-4 (PF fixer) was a really different fixer compared to Ilford Rapid Fixer. Are they both sodium thiosulfates? Are they both considered rapid fixers? I'm using Ilford for film and 2 baths TF-4 for paper. What's about plain hypo? It's not clear for me. I'm a bit confused.

Best regards
 
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norm123

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I realize that TF-4 is an ammonium fixer. So, I presume that Ilford Rapid Fixer is a sodium thiosulfate fixer.
 
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norm123

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michael_r said:
Both Ilford Rapid Fixer and TF-4 are rapid fixers based on ammonium thiosulfate. Ilford Rapid Fixer is mildly acidic while TF-4 is alkaline.
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Thank you for the precisions. And plain hypo?
 
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