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MN Qualitative test paper indanthrene yellow

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MN Qualitative test paper INDIPRO

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MN Qualitative test paper potassium

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MN Qualitative test paper potassium iodate starch

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MN Qualitative test paper potassium iodide starch 816 N

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MN Qualitative test paper cobalt

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MN Qualitative test paper nickel

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MN Qualitative test paper Nitratesmo

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MN Qualitative test paper oil test paper

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MN Qualitative test paper Peroxtesmo KO

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11 - 20 of 32 results

MN Qualitative test paper indanthrene yellow

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24.38 €
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Indanthrene yellow paper • Quick and easy determination of hydrosulfite • The test paper allows the easy determination of Hydrosulfite (sodium dithionite). • It is used to determine the endpoint in the conversion of vat dyes to the leuco form. • Because of the special purpose, indanthrene yellow paper is also called Hydrosulphite paper. Product data • Presentation: Pack of 200 strips 20x70 mm • Color reaction: yellow ↔ blue • Minimum purchase: 5 packs

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MN Qualitative test paper INDIPRO

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115.20 €
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INDIPRO • Quick and easy determination of protein contamination • The test paper allows the detection of protein contamination on surfaces and tools coming in contact with food. • The test kit consists of 60 test strips with reagents. Product data • Presentation: Pack of 60 test strips 10x95 mm and reagents • Color reaction: yellow → green • Limit of sensitivity: 50 µg BSA (bovine serum albumin)
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MN Qualitative test paper potassium

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51.65 €
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Potassium test paper • Quick and easy determination of potassium, rubidium, cesium and thallium • The test paper allows the quick and easy detection of potassium. • Rubidium, cesium and thallium(I) give the same reaction. • Sodium and heavy metal ions decrease the sensitivity. • The leaflet describes a method to eliminate these interferences. Product data • Presentation: Pack of 200 strips 20x70 mm • Color reaction: bright-yellow to orange • Limit of sensitivity: 250 mg/l K+
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MN Qualitative test paper potassium iodate starch

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14.98 €
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Potassium iodate starch paper • Quick and easy determination of sulphit and sulphur dioxide • The test paper allows the rapid detection of sulphit and sulphur dioxide. • The paper is used in food analyzing laboratories. • The reaction is as follows: 2 IO3– + 5 SO32– + 2 H+ → 5 SO42– + I2 + H2O • Sulphurous acid or sulphites reduce potassium iodate to free iodine. • With starch, iodine gives a characteristic blue-black color. • For a detection of sulphite with high sensitivity we recommend Sulfit Test paper . Product data • Presentation: Reel of 5 m length and 7 mm width • Color reaction: white → blue-black • Limit of sensitivity: 5 mg/l SO2 • Minimum purchase: 5 reels
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MN Qualitative test paper potassium iodide starch 816 N

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14.98 €
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Potassium iodide starch paper from MN • Quick and easy determination of nitrite and free chlorine • This test paper allows the quick and easy detection of strong oxidizers such as nitrite and free chlorine. • Potassium iodide starch paper is also used to control diazotization reactions. • Nitrite or free chlorine oxidize potassium iodide to form elemental iodine which reacts with starch to a blue-violet complex. • Potassium iodide starch paper may be used by dipping it into the sample or by applying drops of the sample onto the paper. • To detect gaseous oxidizers, the paper is moistened with distilled water and then exposed to the gas in question. • The 816 N version comes in a classic test paper reel. • You can choose the required test paper length simply by tearing the paper. • Thus, MN 816 N is especially suited to be dipped into solutions. Technical data • Colour reaction: white → blue-violet • Limit of sensitivity: 1 mg/l NO2– / 1 mg/l free Cl2 • Presentation: Reel of 5 m (16' 5") length und 7 mm (0.3 in) width • Minimum purchase: 5 reels
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MN Qualitative test paper cobalt

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31.10 €
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Cobalt test paper • Quick and easy determination of cobalt • This test paper 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 % + 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. Product data • Presentation: Pack of 100 strips 20x70 mm • Color reaction: white → blue • Limit of sensitivity: 25 mg/l Co2+
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MN Qualitative test paper nickel

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41.86 €
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Nickel test paper • Quick and easy determination of nickel • This test paper allows the quick and easy detection of nickel. • For non-destructive testing of materials apply a drop of 3% Nitric acid (1 part Nitric acid 85%, 5 parts water) to the degreased surface. • After 1 minute absorb the liquid with the test paper. • With this procedure Nickel contents >0,5% are safely detected. Product data • Presentation: Pack of 200 strips 20x70 mm • Color reaction: white → red • Limit of sensitivity: 10 mg/l Ni2+
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MN Qualitative test paper Nitratesmo

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52.32 €
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Nitratesmo • Quick and easy determination of nitrate and nitrite • This test paper allows the reliable detection of Nitrate and Nitrite. • It shows different colors for the two ions. Product data • Presentation Reel of 5 m length and 10 mm width • Virage Nitrate: white → red (dip test paper into sample and afterwards into sulfuric acid 96%) Nitrite: white → yellow (dip test paper into sample and afterwards into Hydrochloric acid 5 mol/l) • Limit of sensitivity: 10 mg/l Nitrate (NO3–), 5 mg/l Nitrite (NO2–)
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MN Qualitative test paper oil test paper

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40.51 €
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Oil test paper • Quick and easy determination of oil contaminations • This test paper allows the rapid and reliable detection of oil contaminations of water and soil. • The sensitivity largely depends on the nature of the respective hydrocarbon. • For detection of oil in soil, press the paper firmly against the soil to be tested and rinse with clear water. • To determine oil in water, move the paper back and forth a few times in the sample. • In case of volatile hydrocarbons, the color reaction of the test paper has to be evaluated immediately. Product data • Presentation: Pack of 100 strips 20x70 mm • Color reaction :pale blue → dark blue • Limit of sensitivity: Petroleum ether: 250 mg/l Gasoline: 10 mg/l Fuel oil: 5 mg/l Lubricating oil: 1 mg/l

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MN Qualitative test paper Peroxtesmo KO

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94.66 €
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Peroxtesmo KO • Quick and easy determination of peroxidase • This test paper allows the quick and easy detection of peroxidase in food. • It is used in the food processing industry to evaluate the quality of canned food. • A drop of the sample is put onto the test paper. • Alternatively the paper can be pressed to fresh cut surfaces. • In the presence of peroxidase a blue color appears within 2 minutes. Product data • Presentation: Pack of 100 test papers 15 x 15 mm • Color reaction: white → blue-green
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