KODALK Question.

Recent Classifieds

Forum statistics

Threads
177,154
Messages
2,430,238
Members
94,146
Latest member
shawnmcc
Recent bookmarks
0
Joined
Jun 11, 2005
Messages
1,444
Location
Plymouth. UK
Shooter
Multi Format
I know that Borax is disodium tetraborate (decahydrate) and that Kodalk is sodium metaborate.

Is Kodalk the 4-mole or the 8-mole metaborate?
 

Rudeofus

Subscriber
Joined
Aug 13, 2009
Messages
4,456
Location
EU
Shooter
Medium Format
This page claims Kodalk is the octahydrate. Check out (there was a url link here which no longer exists), too.
 

Trask

Subscriber
Joined
Oct 23, 2005
Messages
1,782
Location
Virginia (northern)
Shooter
35mm RF
How does one know if it is 4-mole or 8-mole? Looking at Photographer's Formulary, for example, they simply list the chem as sodium metaborate, no further information. More broadly, is there a qualitative difference between the two?
 

Rudeofus

Subscriber
Joined
Aug 13, 2009
Messages
4,456
Location
EU
Shooter
Medium Format
Photo Formulary provides an MSDS on their product page, which states that their Sodium Metaborate product is also the 8-mole version.
 
Photrio.com contains affiliate links to products. We may receive a commission for purchases made through these links.
To read our full affiliate disclosure statement please click Here.

PHOTRIO PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Ilford Photo ADOX Freestyle Photographic Photo Warehouse Stearman Press Weldon Color Lab
Top Bottom