[Alt-photo] Albumen preservative

Jim Patterson jimbobnola at cox.net
Thu Mar 24 00:21:50 UTC 2016


Hi,  1 gram/liter = 0.1%

Sent from my iPhone

> On Mar 23, 2016, at 6:31 PM, johnbrewerphotography--- via Alt-photo-process-list <alt-photo-process-list at lists.altphotolist.org> wrote:
> 
> Hi Jim
> 
> Thanks for that. What quantity sodium benzoate/litre of albumen?
> 
> Thanks
> 
> John
> 
> Sent from my iPhone
> 
>> On 23 Mar 2016, at 6:12 pm, Jim Patterson via Alt-photo-process-list <alt-photo-process-list at lists.altphotolist.org> wrote:
>> 
>> Hi John,
>> I use sodium benzoate at 0.1% strength, or thymol (add a crystal to the solution, it is not very soluble and probably has about the same concentration as SB when at saturation)
>> Jim
>> 
>> ---- johnbrewerphotography--- via Alt-photo-process-list <alt-photo-process-list at lists.altphotolist.org> wrote: 
>>> Hello list
>> 
>> Does anyone use a preservative such as formaldehyde to prevent mould growth? My albumen is nice and old and is refrigerated, doesn't smell but it's such a pain being so viscous to filter the mould. 
>> 
>> John
>> 
>> Sent from my iPhone
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