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MN91301 Hexavalent Chromium Chromate Test Paper Imported from Germany
MN91301 Hexavalent Chromium Chromate Test Paper Imported from Germany
Product details
Product Introduction:
MN hexavalent chromium test stripIt is the best solution for quickly determining the price of six, and it also provides the reagents required for detection,30Reliable measurement results can be obtained within seconds.MNHexavalent chromium test strips are commonly used in industries such as electroplating and leather chemicals.
Product Name: MNChromate test strip
Test scope:0-3-10-30-100 mg/l CrO42-
Origin: Original imported
Product type: Semi quantitative test paper
Packaging specifications: boxed, 100 pieces/box
Validity period: 2 and a half years
Product Code: 91301
Detailed parameters: type Semi quantitative test strip Product specifications Boxed,100strip/box+reagent Color response white-purple Unit scale 0-3-10-30-100 mg/l CrO42- Product Code 91301
characteristic:
Quick: Put in the water sample, take it out, and read it
Convenient: No additional equipment required
Accurate: not affected by interference from other substances
Durable:30℃The following can be stored2Half a year
Chromate Test Strip Manual Product Code:91301 Content included: 1Equipped with100Aluminum cans with test strips 2Chromate-1Reagent 3test tube
Security Warning: Chromate-1The reagent contains19%Nitric acid. May cause burns. Avoid contact with children. Do not inhale steam. If accidentally splashed into the eyes, please rinse immediately with plenty of water or seek medical advice. Wear eye masks and gloves for protection.
usage method: 1Place the test tube in the plastic container and add10dropChromate-1reagent 2Take out the test strip and immediately cover the bottle cap after taking it out. Do not touch the testing area. 3Immerse the test strip into a neutral to acidic sample solution, shake off excess solution, and then place it in a test tube containing the test reagent. 430After seconds, remove the test strip and compare the test area with the standard color card. In the presence of chromium, the test strip will turn violet. If chromium exists in the form of trivalent chromium ions, potassium peroxydisulfide must be added before measurement/Boil silver nitrate to oxidize trivalent chromium ions into chromate (hexavalent chromium) ions. Calculation formula:Cr3+=CrO42-×0.45
Interference: The interference of molybdate can be removed by adding oxalic acid to the acidic sample solution. Trivalent iron ions can be removed by precipitation with sodium hydroxide.
Storage: Avoid placing the test strip in a sunny and humid environment. Should be stored+30Dry environment at ℃.
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