Photographic chemicals

The Photographic Chemicals is a passive infrared detector with pet-immunity detection. Utillizing IR-TEC patented Target Size Verification technology; this state-of-the-art motion detector is able to immune normal movement of domestic pet up to 20 kgs (45 lb). It shares the same housing with 580 series, system designer can easily select various mod...

Formula : (NH 4) 2 S 2 O 3 Molecular Weight : 148.21 Specific Gravity : 1.320 to 1.340 Free Ammonia : 1 % Max Sulphite Content : 1.5 % Max pH : 8 to 9.5 pH Assay as (NH 4) 2 S 2 O 3 : 58 to 60 % W/W

• It is used for production of film developer solution and bleach fix solution.