Macherey-Nagel

• Allows the quick and easy detection of Chromate (CrO43-)

• Cr(III) ions must be converted to chromate prior to the detection

• For non-destructive testing of materials, apply a drop of acid solution (1 part hydrochloric acid 37 % +

• Allows the quick and easy detection of Cobalt (Co2+)

• For non-destructive testing of materials, apply a drop of acid solution (50 ml hydrogen peroxide 3 % + 7.5 ml o-phosphoric acid 85 % + 5ml hydrochloric acid 37 %) to the degreased surfa

• Unify pH indicator and reference color chart on one strip

• Any sample color has the same effect on both, the reference colors and the reactive pad, allowing unadulterated pH reading even in colored solutions

• Gradation (pH): 8.0

• Gradation: 0 - 1 - 3 - 10 - 30 - 100 mg/L H2O2

• Color change: white to blue

• CE-certified

• Equivalent to Whatman No. 4

• Fast filter paper with excellent retention of coarse particles and gelatinous precipitates

• This soft filter paper is used for example in routine clean up of biological or organic solutions

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• Equivalent to Advantec Filter Paper No. 5B

• Equivalent to Whatman Filter Paper No. 43

• General purpose, ashless filter paper with medium speed and medium retention

• Typical applications include gravimetric analysis for

• Equivalent to Whatman No. 44

• Ashless, slow filter paper which is slightly less retentive than MN 640 d

• Surface: Smooth

• Basis weight: 70 g/m2

• Thickness: 0.16 mm

• Filtration speed: 100 s

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• Allows a simultaneous semi-quantitative determination of silver and pH value in photographic solutions

• Gradation (pH): 4 - 5 - 6 - 7 - 8

• Gradation (Silver): 0 - 0.5 - 1 - 2 - 3 - 5 - 7 - 10 g/L Ag+

• Color change (pH)

• Wet-strengthened, slow, ashless filter paper with very fine particle retention

• Standard paper for critical gravimetric analysis of fine precipitates like barium sulfate or metastannic acid

• The smooth surface allows fiber-free f

• Fastest quantitative filter paper with highest flow rate

• Used in analytical procedures of samples with coarse or gelatinous particles

• Surface: Smooth

• Basis weight: 85 g/m2

• Thickness: 0.22 mm

• Fil

• Yellow paper, which changes color to red near neutral (pH 6.7 - 7.9), e.g. for demonstration of a specific alkali concentration, which is required for special reactions

• Length: 70mm

• Width: 20mm

• Filter paper with medium retention and flow rate

• This filter paper covers a wide range of filtration applications

• Surface: Smooth

• Basis weight: 85 g/m2

• Thickness: 0.2 mm

• Filtration speed: 27 s <

• Filter paper with medium retention and flow rate

• This filter paper covers a wide range of filtration applications

• Surface: Smooth

• Basis weight: 85 g/m2

• Thickness: 0.2 mm

• Filtration speed: 27 s <

• Allows the quick and easy detection of Copper (Cu+/2+)

• Specific for Cu

• For the determination of copper on surfaces and in alloys, checking for pores in metallic coatings on copper, for criminal trace investigations (projectiles

• Unify pH indicator and reference color chart on one strip

• Any sample color has the same effect on both, the reference colors and the reactive pad, allowing unadulterated pH reading even in colored solutions

• Gradation (pH): 9.5

• Gradation: 0 - 50 - 150 - 300 - 500 - 800 - 1000 mg/L H2O2

• Color change: white to brown

• Equivalent to Whatman No. 4

• Fast filter paper with excellent retention of coarse particles and gelatinous precipitates

• This soft filter paper is used for example in routine clean up of biological or organic solutions

•