Fluoride Test Paper


Fluorides

Product Name Type Gradation of scale
or limit of sensitivity		 Item # Order
Fluoride test paper Yes/No test paper 20 mg/L F-100
box of 200 strips $41.50  
Fluoride test discs Special test paper 0 · 2 · 5 · 10 · 20 · 50 · 100 mg/L F- 90734
box of 30 test discs & reagent $106.60  
Fluoride test paper with adhesive dot Yes/No test paper 20 mg/L F-100A
box of 100 strips (20 x 70 mm) $33.10  

Note: mg/L is equivalent to ppm

 

#F-100 Fluoride test paper

box of 200 strips $41.50  

The test paper allows the rapid detection of fluoride ions in solutions containing hydrochlorid acid. It is suitable for the safe and easy detection of dangerous hydrofluoric acid, which is used for example in computer chip production.
 
Color reaction: pink → yellow-white    

#90734 Fluoride test discs

box of 30 test discs & reagent $106.60  
The fluoride test is especially suited for rapid control of fluoride concentrations. Its purpose is to define concentration ranges and to detect values which fall short of or exceed given limits. Chlorates and bromates cause white discolourations of the test paper. Addition of sodium dithionite (Na2S2O4) will circumvent this interference without affecting the fluoride test.
 Instruction Sheet (pdf)
Color reaction: red → white

 

  

#F-100A Fluoride Test Paper with Adhesive Dot for Waste Analysis

box of 100 strips (20 x 70 mm) $33.10  
This paper is used for the determination of fluoride ions and gaseous hydrogen fluoride (H2 F2). The pinkish-red paper turns yellowish-white in the presence of fluorides. Substantial amounts of chlorates, bromates and sulphates cause white discolorations of the paper. These interferences are readily circumvented. Limit of sensitivity: 20 mg/L fluoride.
 Instruction Sheet (pdf)
Color reaction: pinkish-red → yellowish-white