Cobalt Test Papers


Product Name Type Gradation of scale
or limit of sensitivity
Item # Order
Cobalt test paper Yes/No test paper 25 mg/L CO2+ 90728
box of 100 strips $38.50  
QUANTOFIX® Cobalt Semi-quantitative test strips 0 10 25 50 100 250 500 1000 mg/L CO2+ 91303
box of 100 strips $44.60  

Note: mg/L is equivalent to ppm

#90728 Cobalt test paper

box of 100 strips $38.50  

This test paper allows the quick and easy detection of Cobalt (Co2+).
This test paper can also be used for non-destructive testing of materials. Apply a drop of acid solution (50 ml hydrogen peroxide 3 % + 7.5 ml o-phosphoric acid 85 % + 5 ml hydrochloric acid 37 %) to the degreased surface. After 30-60 seconds absorb the liquid with the test paper. In the presence of cobalt a blue color appears. The intensity of the color varies according to the concentration. With this procedure cobalt contents >0.5% are safely detected.

Instruction Sheet (pdf)
Color reaction: blue → white

#91303 QUANTOFIX® Cobalt

box of 100 strips $44.60  

This test strip is for the rapid and reliable determination of cobalt in solutions. The easy dip-and-read-procedure provides a reliable result within 20 seconds.
Cobalt is also used for metal alloys and can in other compounds be part of catalysts. QUANTOFIX® Cobalt is used to monitor waste water and for non-destructive testing of materials.
Instruction Sheet (pdf)
Color reaction: white → blue-green