Cobalt free Indicating silica gel    
SA-S(NB)SA(NB) series is a small packet that uses cobalt free indicating silica gel.
  Application Confectionary, Foods, Pharmaceuticals, Supplements, Chemicals, Electronic device, Precision machinery  
  1. Cobalt-free
    It is made of organic compound which is environmentally and biologically safe. It is free from harmful heavy metal unlike conventional indicating silica gel which is made of cobalt chloride.
  2. Color change
    It changes its color from blue to purple red like conventional indicating silica gel.
  3. Wide variety of lineup
    It has a wide variety of lineup 1.0g-10g.
  4. High price performance
  5. Automation
    It can be supplied by automatic pouch distributor.
  6. Compact size
    There is a compact one (30
    o wide) for small package.
  7. JIS standard
    It conforms to JIS standard.
      (*1)JIS Z0701 Silica gel Desiccants for Packaging
  Color change It is dark blue under dry condition, as it adsorbs moisture, it changes to purple red. It gradually changes between RH10% and 40%. After it adsorbs moisture up to its limit, it will not desorb under room temperature.  
  Control of toxic substance Cobalt chloride which is used in conventional indicating silica gel has been restricted since it was designated as carcinogens by EU directive 98/98/EC. Therefore the indicating silica gel made of cobalt chloride mixture has been subject to regulation. In contrast, SA-S(NB)SA(NB) series is made of safe alternative material (organic pigment), which is according to all the EU regulation.
In Japan, cobalt chloride is designated as “Class 1 designated chemical substance” by the PRTR system (Pollutant Release and Transfer Register). However, the subject to regulation is 1% (percent by weight), and the content of conventional indicating silica gel is less than that, it is exempt from the regulation. It is packaged by PET film that conforms to the packaging requirements of Food Sanitation Law in Japan.(*2)

(*2) Specifications, Standards and Testing Methods for Containers and Packaging, 3-D-2, Specifications and Standards for Food, Food additive (No370-notification of health and Welfare Minister in 1959)
Weight Quantity Dimension(o)
SA-S(NB) 1.0g 10,000 30×40

Weight Quantity Dimension(o)
SA(NB) 2g 4,600 40×55
3g 3,500 50×55
5g 2,500 60×55
10g 1,200 80×55

  • Specification can be changed without notification.
  • Special dimension is available on customer’s request.