Bromothymol blue indicator Product Information CAS number: 76-59-5 Formula (Hill): C27H28Br2O5S Molar mass: 624.40 g/mol Bulk density: ~ 450 kg/m³ EC number: 200-971-2 Solubility in water: (20 °C) insoluble Solubility in ethanol: ~ 10 g/l (20 °C)

Tetrapotassium diphosphate for analysis Product Information CAS number          7320-34-5 EC number            230-785-7 Hill Formula           K4P2O7 Chemical formula  K4P2O7 Molar Mass           330,34 g/mol Density                2,61 g/cm3at21 °C Melting Point      1.090 °C pH value              No data available Solubility             10 g/l

Thioglycolic acid  for analysis Product Information CAS number            68-11-1 EC index number     607-090-00-6 EC number              200-677-4 Hill Formula             C₂H₄O₂S Chemical formula    HSCH₂COOH Molar Mass             92.11 g/mol HS Code                 2930 90 98 Boiling point          220 °C (1013 hPa) (decomposition) Density