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main / offer for laboratory / chemical reagents /pH and redox indicators     The list below presents the reagents used as pH indicators: Catalogue number Product name Range of colour change from pH of to pH of 899470126 MALACHITE GREEN /OXALATE/ 0,0 yellow 2,0 blue-green 898850129 BRILLANT GREEN 0,0 yellow 2,6 green 379850123 ERYTHROSIN B 0,0 orange 3,6 red 899550121 METHYL GREEN 0,1 yellow 2,3 blue 425450120 METHYLVIOLETT 0,1 yellow 2,7 violet 272451213 CRESOL RED 0,2 red 1,8 yellow 272450218 CRESOL RED 0,2 red 1,8 yellow 272471212 CRESOL RED SODIUM SALT SOLUBLE IN WATER 0,2 red 1,8 yellow 376850246 EOSIN Y 0,25% WATER SOLUTION 0,5 yellow 3,2 fluorescent green 376840241 EOSIN Y 1% WATER SOLUTION 0,5 yellow 3,2 fluorescent green 376830247 EOSIN Y 1% WATER SOLUTION 0,5 yellow 3,2 fluorescent green 425180122 CRYSTAL VIOLET 0,8 yellow 2,6 blue-violet 909130211 METANIL YELLOW 1,2 violet 2,5 yellow 187250215 THYMOL BLUE 1,2 red 2,8 yellow 187280219 THYMOL BLUE SODIUM SALT SOLUBLE IN WATER 1,2 red 2,8 yellow 760480219 m-CRESOL PURPLE 1,2 red 2,8 yellow 842750219 TROPAEOLIN OO 1,2 red 3,2 yellow 908970215 DIMETHYL YELLOW 2,9 red 4,0 yellow 184040215 BROMOPHENOL BLUE 3,0 yellow 4,6 blue-violet 184070219 BROMOPHENOL BLUE SODIUM SALT SOLUBLE IN WATER 3,0 yellow 4,6 blue-violet 272420214 CONGO RED 3,0 fiolet 5,0 orange-red 704630213 METHYL ORANGE 3,1 blue 4,4 yellow-orange 898760219 BROMOCRESOL GREEN 3,8 yellow 5,4 blue 898763279 BROMOCRESOL GREEN 1% SOLUTION 3,8 yellow 5,4 blue 898821210 BROMOCRESOL GREEN SODIUM SALT WATER SOLUBLE 3,8 yellow 5,4 blue 271770215 ALIZARIN RED S 4,3 yellow 6,3 purple 887170295 INDICATOR ACC.TASHIRO 4,4 red-violet 5,8 green 272570211 METHYL RED 4,4 red 6,2 yellow-orange 272580215 METHYL RED SODIUM SALT SOLUBLE IN WATER 4,4 red 6,2 yellow-orange 272010215 CHLOROPHENOL RED 4,8 yellow 6,4 purple 468740121 HEMATOXYLIN 5,0 yellow 7,2 violet 595080211 LACMUS 5,0 red 8,0 blue 680870421 4-NITROPHENOL 5,1 colourless 7,6 yellow 680870211 4-NITROPHENOL 5,1 colourless 7,6 yellow 760350211 BROMOCRESOL PURPLE 5,2 yellow 6,5 purple 760390210 BROMOCRESOL PURPLE SODIUM SALT 5,2 yellow 6,5 purple 115680215 ALIZARIN 5,8 yellow 7,2 violet 184140219 BROMOTHYMOL BLUE 6,0 yellow 7,2 violet 184170212 BROMOTHYMOL BLUE SODIUM SALT SOLUBLE IN WATER 6,0 yellow 7,2 violet 680860217 3-NITROPHENOL 6,6 colourless 8,6 yellow 272700216 NEUTRAL RED 6,8 red 8,0 orange 272250211 PHENOL RED 6,8 yellow 8,2 red 272270210 PHENOL RED SODIUM SALT SOLUBLE IN WATER 6,8 yellow 8,2 red 272451213 CRESOL RED 7,2 yellow 8,8 purple 272450218 CRESOL RED 7,2 yellow 8,8 purple 272471212 CRESOL RED SODIUM SALT SOLUBLE IN WATER 7,2 yellow 8,8 purple 187250215 THYMOL BLUE 8,0 yellow 9,6 blue 187280219 THYMOL BLUE SODIUM SALT SOLUBLE IN WATER 8,0 yellow 9,6 blue 667970211 1-NAPHTHOLBENZEIN 8,2 orange 10,0 blue-green 414500215 PHENOLPHTHALEIN 8,2 colourless 10,0 red-violet 414513270 PHENOLPHTHALEIN 1% SOLUTION 8,2 colourless 10,0 red-violet 414523274 PHENOLPHTHALEIN 2% SOLUTION 8,2 colourless 10,0 red-violet 863170212 THYMOLPHTHALEIN 9,3 colourless 10,8 blue 842730210 TROPEOLIN O 11,1 yellow 12,7 orange 484490126 INDIGO CARMINE 11,5 blue 13,0 yellow     Sales: Local Distributors or Sales Department of POCH S.A., tel. +48 32 23-92-378.     Technical support: Export Department, mail: export@poch.com.pl
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