VISOCOLOR® ECO Sulphite 德国MN亚硫酸盐测试剂Sulphite/滴定法931095 Titrimetric determination of Sulphite Titrimetric determination with addition of iodine solution and reverse titration of unused iodine with sodium thiosulphate. …

VISOCOLOR® ECO Nitrite 德国MN亚硝酸测试剂/补充试剂931044/931244 Colorimetric determination of nitrite In acidic solution sulphanilic acid or sulphanilamide are diazotised with nitrite. The diazonium salt is then coupled with an aromatic amin…

VISOCOLOR® ECO DEHA 德国MN DEHA测试剂/补充试剂931024/931224 Colorimetric determination of DEHA Measurement of the reduction properties of DEHA for iron(III) ions and determination of the iron(II) ions formed. …

VISOCOLOR® ECO Carbonate hardness 德国MN碳酸盐硬度测试剂931014 Titrimetric determination of carbonate hardness The determination is preformed as titration with hydrochloric acid against a mixed indicator, which changes colour at pH 4.5. (R…

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…