VISOCOLOR® ECO Sulphide 德国MN硫化物测试剂/补充试剂931094/931294 Colorimetric determination of Sulphide N,N-Dimethyl-1,4-phenylene diamine reacts with hydrogen sulphide to form an unstable compound which rearranges to leucomethylene blue. Ox…

VISOCOLOR® ECO Nitrate 德国MN硝酸测试剂/补充试剂931041/931241 Colorimetric determination of nitrate Nitrate is reduced to nitrite with an inorganic reducing agent. Nitrite is then diazotised with an aromatic amine and simultaneously coupled…

VISOCOLOR® ECO Cyanuric acid 德国MN氰尿酸浊度测试剂/补充试剂931023/931223 Turbidity measurement of cyanuric acid Cyanuric acid forms with a triazine derivative a fine precipitate. The turbidity caused by this reaction can be measured visually …

VISOCOLOR® ECO Calcium 德国MN钙测试剂/补充试剂/滴定法931012 Titration test kit for determination of calcium Complexometric titration after precipitation of the magnesium salts. (Reaction basis according to DIN 38406-3 E3) …

VISOCOLOR® ECO Sulphate 德国MN硫酸测试剂/补充试剂931092/931292 Determination of sulphate Sulphate reacts with barium ions forming a precipitate of barium sulphate. Under defined conditions this turbidity can be used for concentration measur…

VISOCOLOR® ECO Nickel 德国MN镍测试剂/补充试剂931040/931240 Colorimetric determination of nickel In ammonia solution nickel ions react with diacetyldioxime after oxidation with bromine to form a reddish-brown dye. Insoluble nickel compounds…

VISOCOLOR® ECO Cyanide 德国MN氰化物测试剂931022/931222 Colorimetric determination of cyanide Cyanide ions react with chlorine to form cyanogen chloride, which splits the pyridine ring and forms glutaconedialdehyde. By aldol condensation …

VISOCOLOR® ECO Ammonium 15 德国MN铵15测试剂931010/931210 Colorimetric determination of ammonium DEV: procedure: In alkaline medium ammonium ions react with chlorine to form chloro…

VISOCOLOR® ECO Ammonium 3 德国MN铵3测试剂931008/931208 Colorimetric determination of ammonium DEV: procedure: In alkaline medium ammonium ions react with chlorine to form chloroamine which in the presence of a catalyst forms a blue col…

德国MN硅测试剂931033/931233 VISOCOLOR® ECO Silica Colorimetric determination of silica In acidic solution soluble silica or silicates react with ammonium molybdate to form yellow silicomolybdic acid, which is reduced to silico-molybdenum blu…